Replacing NULL value in multiple columns in a table

Hi,

I have some tables where I import data in, lots of field have gotten a
NULL value which the application can not handle.

Now can I replace each NULL value with '' in a columns with:
update <tableset [<column>] = '' where [<column>] IS NULL

But because there are lots of columns this is pretty much work, also
there are multiple tables.

Is there an easy way to replace all NULL values in all columns in a
table?

Thanks in Advance
BobBF (bob@.faessen.net) writes:

Quote:

Originally Posted by

I have some tables where I import data in, lots of field have gotten a
NULL value which the application can not handle.
>
Now can I replace each NULL value with '' in a columns with:
update <tableset [<column>] = '' where [<column>] IS NULL
>
But because there are lots of columns this is pretty much work, also
there are multiple tables.
>
Is there an easy way to replace all NULL values in all columns in a
table?

First of all, that operation would only be possible with columns
that hold character data. For numeric and datetime columns there
is rarely any good replacement for NULL values. So, unless, your
database only has nullable character columns, you need to fix the
application to handle NULL values anyway.

No, there is no direct function for setting many columns to NULL. You
need to have an UPDATE statement for each table, and one that lists
all columns that should be set to NULL. The good news is that you
can generate the statements:

SELECT 'UPDATE ' + o.name + ' SET ' + c.name + ' = '''' WHERE ' +
c.name + ' IS NULL'
FROM sysobjects o
JOIN syscolumns c ON o.id = c.id
JOIN systypes t ON c.xtype = t.xtype
WHERE o.xtype = 'U'
AND (t.name like '%char' or t.name like '%text')

--
Erland Sommarskog, SQL Server MVP, esquel@.sommarskog.se
Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/pr...oads/books.mspx
Books Online for SQL Server 2000 at
http://www.microsoft.com/sql/prodin...ions/books.mspx|||Great,

Thanks a lot, with the query I can create the new script much and much
easier.

I replaced the o.name with the tables which I new they had the problem
and now I have have all columns to replace the values.

Thanks a lot.

Regards, Bob

Erland Sommarskog schreef:

Quote:

Originally Posted by

BF (bob@.faessen.net) writes:

Quote:

Originally Posted by

I have some tables where I import data in, lots of field have gotten a
NULL value which the application can not handle.

Now can I replace each NULL value with '' in a columns with:
update <tableset [<column>] = '' where [<column>] IS NULL

But because there are lots of columns this is pretty much work, also
there are multiple tables.

Is there an easy way to replace all NULL values in all columns in a
table?

>
First of all, that operation would only be possible with columns
that hold character data. For numeric and datetime columns there
is rarely any good replacement for NULL values. So, unless, your
database only has nullable character columns, you need to fix the
application to handle NULL values anyway.
>
No, there is no direct function for setting many columns to NULL. You
need to have an UPDATE statement for each table, and one that lists
all columns that should be set to NULL. The good news is that you
can generate the statements:
>
SELECT 'UPDATE ' + o.name + ' SET ' + c.name + ' = '''' WHERE ' +
c.name + ' IS NULL'
FROM sysobjects o
JOIN syscolumns c ON o.id = c.id
JOIN systypes t ON c.xtype = t.xtype
WHERE o.xtype = 'U'
AND (t.name like '%char' or t.name like '%text')
>
>
>
--
Erland Sommarskog, SQL Server MVP, esquel@.sommarskog.se
>
Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/pr...oads/books.mspx
Books Online for SQL Server 2000 at
http://www.microsoft.com/sql/prodin...ions/books.mspx

replacing nodes and sub-trees

Hi,

I have an table where I use XML data type to store documents. The following is an example of original document:

<!ORIGINAL DOCUMENT>

<ABC>

<xyz>.....</xyz>

<xyz>.....</xyz>

<gef>.....</gef>

<qew>....</qew>

</ABC>

<!NEW DOCUMENT>

<ABC>

<xyz>.....</xyz>

<gef>.....</gef>

<reb>....</reb>

</ABC>

My question is how to update the original document so that the two previous instances of xyz tag are replaced by the new single xyz tag, the original gef tag is replaced by the new gef tag, and the reb tag is added to the original document as it is not not present in the original document. The qew will not be updated. I can do this using DOM but I am looking to accomplish this using xquery and xml dml. Is this possible ? I appreciate help on this.

Thanks

It sounds like your algorithm is

For each element name in the NEW document, delete all the elements of that name in the OLD document and insert the new element into the OLD document.

You could do this w/ XQuery DML by generating a DML statement based on the NEW document.

Replacing existing records in a table

I have a table that stores all the processed data from other tables. How can I replace the same data in this table when I do "reprocessing"? It's kinda like a combination of delete then insert kind of thing. I cannot simply insert as it will become duplicates. any idea?updates?

The message I have entered is too short.|||can UPDATE do multiple column update?

actually the purpose is for rerun of query. If i were to use UPDATE, i need to check if the record exist first. That's not efficient. I am looking for direct replacement.|||can UPDATE do multiple column update?

yes

actually the purpose is for rerun of query. If i were to use UPDATE, i need to check if the record exist first.

maybe. maybe not.

That's not efficient. I am looking for direct replacement.

really? that is all in how you skin the cat.

why don't you read Brett Kaiser's sticky at the top of this board, follow the directions, and save everyone a lot of time.

Replacing data in a string

Hi

I have a table with unique data in but it has been inputted, below is an example of the data

6331245073
638 535 0797
7023593578
ID Number 650 379 4428
OCA8 9F 32
ocb92w153
vh235704

I need to strip out the all letters and spaces so it will look like this:

6331245073
6385350797
7023593578
6503794428

ect....

Thanks

Rich

Hi Rich,

You need to create a scalar function to do this. Here is an example:
CREATE FUNCTION FormatString(@.input VARCHAR(100))
RETURNS VARCHAR(100)
AS
BEGIN
DECLARE
@.character CHAR(1),
@.newstring VARCHAR(100),
@.counter INT

SET @.counter = 0
SET @.newstring = ''

WHILE @.counter < LEN(@.input)
BEGIN
SET @.counter = @.counter + 1
SET @.character = SUBSTRING(@.input, @.counter, 1)

IF @.character >= '0' AND @.character <= '9'
SET @.newstring = @.newstring + @.character
END

RETURN @.newstring
END

You can call the function as follow (note the dbo. prefix):

SELECT dbo.FormatString('ID Number 650 379 4428' )
SELECT dbo.FormatString(fieldname) FROM tablename

Greetz,

Geert

Geert Verhoeven
Consultant @. Ausy Belgium

My Personal Blog

|||

Thanks Geert did the job

Rich

Replacing column value on insert

Hello SQLServer-specialists!
I'm running a database which contains on table, where the customer is
allowed to import data into.
This table also has a column, which the customer should set to his name, so
that you know who imported the record.
The problem is, that the customer is not restricted in setting this columns
value, so he also could set it to 'foo'!
Now I want to ensure, that the value is always set to the logged on user,
when importing data.
I know, that using a view and an INSTEAD OF trigger would do the job.
But as the table has abount 250 columns, I try to find an easier way.
Is it possible to write a trigger, which executes just before the insert,
and is able to replace a columns value?
Thanks in advance!
MaxHi there,
why not setting up a UPDATE / INSERT trigger then modifying the users
name, like this one below which takes the SUSER_SNAME as a input, make
sure you modify that, to eventually reflect your enviroment:
CREATE TRIGGER SomeTrigger ON SOmeTable
FOR INSERT
AS
BEGIN
UPDATE SomeTable SET ModifiedColumn = SUSER_SNAME
FROM SomeTable S
INNER JOIN INSERTED I
ON S.PKColumn = I.PKColumn
END
HTH, Jens Suessmeyer,
http://www.sqlserver2005.de
--|||Markus,
You can use the system function SYSTEM_USER to get the current username.
You can create an AFTER Trigger for inserts and update the inserted rows
Username with the SYSTEM_USER function.
Regards
Roji. P. Thomas
http://toponewithties.blogspot.com
"Markus Emayr" <essmayr/at/racon-linz.at> wrote in message
news:OqyIvYMTGHA.5108@.TK2MSFTNGP11.phx.gbl...
> Hello SQLServer-specialists!
> I'm running a database which contains on table, where the customer is
> allowed to import data into.
> This table also has a column, which the customer should set to his name,
> so that you know who imported the record.
> The problem is, that the customer is not restricted in setting this
> columns value, so he also could set it to 'foo'!
> Now I want to ensure, that the value is always set to the logged on user,
> when importing data.
> I know, that using a view and an INSTEAD OF trigger would do the job.
> But as the table has abount 250 columns, I try to find an easier way.
> Is it possible to write a trigger, which executes just before the insert,
> and is able to replace a columns value?
> Thanks in advance!
> Max
>|||Hello!
Thanks for your answers!
I now tried the following
CREATE TRIGGER ModificationTrigger ON TheTableToInsertTo
INSTEAD OF INSERT
AS
BEGIN
INSERT INTO TheTableToInsertTo
SELECT col1, col2, suser_sname()
FROM inserted
END
First I thought, that inserting into the same table, as the trigger should
instead of an insert, could make problems, but it works perfectly!!!
Greetings,
Max
"Markus Emayr" <essmayr/at/racon-linz.at> schrieb im Newsbeitrag
news:OqyIvYMTGHA.5108@.TK2MSFTNGP11.phx.gbl...
> Hello SQLServer-specialists!
> I'm running a database which contains on table, where the customer is
> allowed to import data into.
> This table also has a column, which the customer should set to his name,
> so that you know who imported the record.
> The problem is, that the customer is not restricted in setting this
> columns value, so he also could set it to 'foo'!
> Now I want to ensure, that the value is always set to the logged on user,
> when importing data.
> I know, that using a view and an INSTEAD OF trigger would do the job.
> But as the table has abount 250 columns, I try to find an easier way.
> Is it possible to write a trigger, which executes just before the insert,
> and is able to replace a columns value?
> Thanks in advance!
> Max
>

Replacing characters in a text field

I have a large table, tblMessage, which stores e-mail messages in text
fields. I need to remove the carriage returns the data in these fields,
but I have not yet figured out how to do so.

I thought that the way to do this would be with the REPLACE function;
unfortunately, of course, the REPLACE function cannot work with TEXT
fields. I tried CASTing the text field to VARCHAR(8000); however, some
of the rows have more than 8000 characters in the text field, so it bombs.

Here is the SQL that I tried:

select
msgID,
msgSent,
msgFromType,
msgFromID,
msgSubject,
REPLACE (CAST(msgMessage AS varchar(8000)), CHAR(13), '<BR>') AS
newMessage,
msgOriginal,
attID
into tblMessageNew
from tblMessage

I'm at my wit's end. Truncating the text field to 8000 character is an
acceptable option, but I can't even seem to be able to do that.

I'm using SQL Server version 7.Richard S. Crawford (rscrawfordDUCK@.mossREMOVEWATERFOWLroot.com) writes:
> I have a large table, tblMessage, which stores e-mail messages in text
> fields. I need to remove the carriage returns the data in these fields,
> but I have not yet figured out how to do so.
> I thought that the way to do this would be with the REPLACE function;
> unfortunately, of course, the REPLACE function cannot work with TEXT
> fields. I tried CASTing the text field to VARCHAR(8000); however, some
> of the rows have more than 8000 characters in the text field, so it bombs.

Bombs with what? It's always helpful if you include the error message.

I was able to run this on SQL Server 7:

create table hh (a text not null)
go
declare @.d varchar(8000), @.df varchar(8000)
select @.d = replicate('Why are you here? You should be there!', 8000/30)
select @.df = replicate('Why are you here? You should be there!', 8000/30)
insert hh (a)
exec ('select ''' + @.d + @.df + '''')
select datalength(a) from hh
select replace(cast(a as varchar(8000)), 'Why', 'Porque') from hh
go
drop table hh

--
Erland Sommarskog, SQL Server MVP, esquel@.sommarskog.se

Books Online for SQL Server SP3 at
http://www.microsoft.com/sql/techin.../2000/books.asp|||Hi

Taking the CR/LF out before inserting the text would avoid your problem!!!

The only way I can think of doing this is to chunk the text field into 8000
character as in
http://tinyurl.com/3fqxv

One way of doing this:
http://tinyurl.com/236hf

John

"Richard S. Crawford" <rscrawfordDUCK@.mossREMOVEWATERFOWLroot.com> wrote in
message news:ca4rog$d8b$1@.woodrow.ucdavis.edu...
> I have a large table, tblMessage, which stores e-mail messages in text
> fields. I need to remove the carriage returns the data in these fields,
> but I have not yet figured out how to do so.
> I thought that the way to do this would be with the REPLACE function;
> unfortunately, of course, the REPLACE function cannot work with TEXT
> fields. I tried CASTing the text field to VARCHAR(8000); however, some
> of the rows have more than 8000 characters in the text field, so it bombs.
> Here is the SQL that I tried:
> select
> msgID,
> msgSent,
> msgFromType,
> msgFromID,
> msgSubject,
> REPLACE (CAST(msgMessage AS varchar(8000)), CHAR(13), '<BR>') AS
> newMessage,
> msgOriginal,
> attID
> into tblMessageNew
> from tblMessage
> I'm at my wit's end. Truncating the text field to 8000 character is an
> acceptable option, but I can't even seem to be able to do that.
> I'm using SQL Server version 7.

replacing Apostrophe

I’m trying to key the syntax for replacing the Apostrophe with double
Apostrophe and update table.
Example: Programmer’s with Programmer’’s
Here code for finding occurrences:
SELECT DEALNAME
FROM DLWKTABLE20060609
where dealname like '%['']%'
BUT how do I update:
Update dlwktable20060609
Set dealname = replace(dealname, ?,?)
where dealname like '%['']%'declare @.c varchar(50)
select @.c ='O''Brian'
select replace(@.c, '''',''') ,@.c
Then the update will be
Update dlwktable20060609
Set dealname = replace(dealname, '''',''')
where dealname like '%['']%'
Denis the SQL Menace
http://sqlservercode.blogspot.com/
Logger wrote:
> I'm trying to key the syntax for replacing the Apostrophe with double
> Apostrophe and update table.
> Example: Programmer's with Programmer''s
> Here code for finding occurrences:
> SELECT DEALNAME
> FROM DLWKTABLE20060609
> where dealname like '%['']%'
> BUT how do I update:
> Update dlwktable20060609
> Set dealname = replace(dealname, ?,?)
> where dealname like '%['']%'

replacing all the ' in a table

Hi all

I need to remove all the ' in a table and i am having some problems with the script, any help would be great

Thanks

Richard

use the following replace statement,

Update tableName

set

ColumnName = Replace(Columnname,'''','')

Where

Columnname Like '%''%'

sql

Replacing all occurrences of a string in a VARCHAR column?

Hi All
I have table Tab1 with a column Col1 of data type VARCHAR. I want to
replace every "Kop " string in that column with "HY". Is there an easy way to
do this. Below is an example with column Col1 with 2 rows of data:
Col1
---
J Dixion
K Kop
I got some helpful scripts on replacing a string within a TEXT column last
time like the one below. I have tried those scripts on other data types of
data like VARCHAR and it did not work.
http://aspfaq.com/show.asp?id=2445
Thank you in advance.MittyKom,
Try the T-SQL REPLACE function.
HTH
Jerry
"MittyKom" <MittyKom@.discussions.microsoft.com> wrote in message
news:8F17586A-F6F6-46D1-A47D-5C85F3D36E9D@.microsoft.com...
> Hi All
> I have table Tab1 with a column Col1 of data type VARCHAR. I want to
> replace every "Kop " string in that column with "HY". Is there an easy way
> to
> do this. Below is an example with column Col1 with 2 rows of data:
> Col1
> ---
> J Dixion
> K Kop
> I got some helpful scripts on replacing a string within a TEXT column last
> time like the one below. I have tried those scripts on other data types of
> data like VARCHAR and it did not work.
> http://aspfaq.com/show.asp?id=2445
> Thank you in advance.
>

Replacing all occurrences of a string in a VARCHAR column?

Hi All
I have table Tab1 with a column Col1 of data type VARCHAR. I want to
replace every "Kop " string in that column with "HY". Is there an easy way to
do this. Below is an example with column Col1 with 2 rows of data:
Col1
J Dixion
K Kop
I got some helpful scripts on replacing a string within a TEXT column last
time like the one below. I have tried those scripts on other data types of
data like VARCHAR and it did not work.
http://aspfaq.com/show.asp?id=2445
Thank you in advance.
MittyKom,
Try the T-SQL REPLACE function.
HTH
Jerry
"MittyKom" <MittyKom@.discussions.microsoft.com> wrote in message
news:8F17586A-F6F6-46D1-A47D-5C85F3D36E9D@.microsoft.com...
> Hi All
> I have table Tab1 with a column Col1 of data type VARCHAR. I want to
> replace every "Kop " string in that column with "HY". Is there an easy way
> to
> do this. Below is an example with column Col1 with 2 rows of data:
> Col1
> J Dixion
> K Kop
> I got some helpful scripts on replacing a string within a TEXT column last
> time like the one below. I have tried those scripts on other data types of
> data like VARCHAR and it did not work.
> http://aspfaq.com/show.asp?id=2445
> Thank you in advance.
>

Replacing all occurrences of a string in a VARCHAR column?

Hi All
I have table Tab1 with a column Col1 of data type VARCHAR. I want to
replace every "Kop " string in that column with "HY". Is there an easy way t
o
do this. Below is an example with column Col1 with 2 rows of data:
Col1
---
J Dixion
K Kop
I got some helpful scripts on replacing a string within a TEXT column last
time like the one below. I have tried those scripts on other data types of
data like VARCHAR and it did not work.
http://aspfaq.com/show.asp?id=2445
Thank you in advance.UPDATE tab1
SET col1 = REPLACE(col1,'Kop','HY')
WHERE col1 LIKE '%Kop%' ;
David Portas
SQL Server MVP
--|||Thank you Dave. It got the job. Thank you once again.
--
5 years experience with SQL Server 2000 and SAP BW/SEM
"David Portas" wrote:

> UPDATE tab1
> SET col1 = REPLACE(col1,'Kop','HY')
> WHERE col1 LIKE '%Kop%' ;
> --
> David Portas
> SQL Server MVP
> --
>
>

Replacing all occurrences of a string in a VARCHAR column?

Hi All
I have table Tab1 with a column Col1 of data type VARCHAR. I want to
replace every "Kop " string in that column with "HY". Is there an easy way t
o
do this. Below is an example with column Col1 with 2 rows of data:
Col1
---
J Dixion
K Kop
I got some helpful scripts on replacing a string within a TEXT column last
time like the one below. I have tried those scripts on other data types of
data like VARCHAR and it did not work.
http://aspfaq.com/show.asp?id=2445
Thank you in advance.MittyKom,
Try the T-SQL REPLACE function.
HTH
Jerry
"MittyKom" <MittyKom@.discussions.microsoft.com> wrote in message
news:8F17586A-F6F6-46D1-A47D-5C85F3D36E9D@.microsoft.com...
> Hi All
> I have table Tab1 with a column Col1 of data type VARCHAR. I want to
> replace every "Kop " string in that column with "HY". Is there an easy way
> to
> do this. Below is an example with column Col1 with 2 rows of data:
> Col1
> ---
> J Dixion
> K Kop
> I got some helpful scripts on replacing a string within a TEXT column last
> time like the one below. I have tried those scripts on other data types of
> data like VARCHAR and it did not work.
> http://aspfaq.com/show.asp?id=2445
> Thank you in advance.
>

Replacing a text globally

I have a instance with many databases in it.

due to company/product name change,

I want to search for a string "xyz" in
database name,
table name,
column name,
stored procedure name
content of all stored procedures

and replace all of them with "abc" without affecting the databases an application.

Can u please help me with step by step guidance?

muralidaran rYou want to change the names of things without affecting an application that uses this data?
Slow down and think about what effects this will have.|||hi

thanks for your reply

the only change expected from application is the change of connection string.

Muralidaran r|||Your application doesn't do anything like

SELECT Field1 FROM xyzTable

?|||My application code never uses table name or column name.

it uses only stored procedure names.

muralidaran r|||I want to search for a string "xyz" in
database name,
table name,
column name,
stored procedure name
content of all stored procedures

I rest my case.|||If your application calls stored procedure names have "xyz" in them, then there is no solution to your problem... When you rename the called procedures, the application will fail (because it will still try to use the old names that contain "xyz" instead of "abc").

-PatP|||due to company/product name change,

Can u please help me with step by step guidance?

Sure, learn how to code correctly|||Thank you guys. Now I will retype the question. try to understand better. Actually the coding was done by someone else and now i have to manage this. OK. try to give a solution.

I have a instance with many databases in it.

due to company/product name change,

I want to search for a string "xyz" in
database name,
table name,
column name,
content of all stored procedures

and replace all of them with "abc"

Can u please help me with step by step guidance?

muralidaran r|||It shouldn't be done IMO.
Users don't see database name(s), table names, column names or content of stored procedures. Users should only see data that you let them see.|||How to search for a string "xyz" in

database name,

table name,

column name,

content of all stored procedures

muralidaran|||I want to search for a string "xyz" in
...
and replace all of them with "abc"

I did listen and I responded appropriately. My advice is don't do it, simple as that.

As always you can chose to ignore my advice but I can assure you that others will respond in a similar fashion.|||Hi

Already i started changing the string by some manuall method which is tedious and hard.

at each and every stage i am checking the applications performance and accuracy.

I need help to speed up this.|||Speaking from a SQL2000 perspective, you need to check "name" in sysobjects for tablenames, view names, proc names, etc. You need to check text in syscomments for sproc content, etc, you need to check syscolumns for column names, etc.

I'm sure for every place you catch, there will be 2 you don't catch.

I'm with GeorgeV, DO NOT DO IT. Let sleeping dogs lay.

Have fun.|||Dear muralidaran_r,

Have you understood what the users here are telling you?
If you change a table name from xyzMyTable to abcMyTable, then all views, triggers, procedures functions, client side calls etc must be modified to point to the new name.

Or are you asking how to search for and change data stored in the tables?|||muralidaran,

Script your entire database to a single text file. Do a search and replace in that text file, and then run the script against a new empty database, as I am sure there will be many errors that occur and that will need to be fixed.|||muralidaran,

Script your entire database to a single text file. Do a search and replace in that text file, and then run the script against a new empty database, as I am sure there will be many errors that occur and that will need to be fixed.

....or, find another career|||"If you change a table name from xyzMyTable to abcMyTable, then all views, triggers, procedures functions, client side calls etc must be modified to point to the new name"

Yes to modify all, is there any automated method, tool, procedure available.

Muralidaran r|||No, not that I know of.

Replacing a Primary Key

Is there rules to replaceing a primary key? What are they?
I have a primary key that is a foreign key in another table.
I created a temp table and moved the into the temp table.
Becuase of the foreign key relationship I can't Drop the table.
Any help will be appreciated
Thanks
Can you give us some more detail? What exactly is being moved? How about
posting the DDL for the tables involved?
Tom
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
..
"traderjoe" <u19885@.uwe> wrote in message news:5d8a399b37132@.uwe...
Is there rules to replaceing a primary key? What are they?
I have a primary key that is a foreign key in another table.
I created a temp table and moved the into the temp table.
Becuase of the foreign key relationship I can't Drop the table.
Any help will be appreciated
Thanks
|||We have a ticket entry system that uses Social Security numbers as the
Primary key Well we all know with privacy act and everything we need to
replace this with a synthetic key.
We have a Tech Table which has the primary key we want to change but we want
to keep the primary key information.
The foreign key is in table Ticket which is how we know who did the
troubleshooting.
Tom Moreau wrote:
>Can you give us some more detail? What exactly is being moved? How about
>posting the DDL for the tables involved?
>Is there rules to replaceing a primary key? What are they?
>I have a primary key that is a foreign key in another table.
>I created a temp table and moved the into the temp table.
>Becuase of the foreign key relationship I can't Drop the table.
>Any help will be appreciated
>Thanks
|||Could you change the FK to use ON DELETE CASCADE and then just update the
PK?
Tom
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
..
"traderjoe" <u19885@.uwe> wrote in message news:5d8b87d03ca52@.uwe...
We have a ticket entry system that uses Social Security numbers as the
Primary key Well we all know with privacy act and everything we need to
replace this with a synthetic key.
We have a Tech Table which has the primary key we want to change but we want
to keep the primary key information.
The foreign key is in table Ticket which is how we know who did the
troubleshooting.
Tom Moreau wrote:
>Can you give us some more detail? What exactly is being moved? How about
>posting the DDL for the tables involved?
>Is there rules to replaceing a primary key? What are they?
>I have a primary key that is a foreign key in another table.
>I created a temp table and moved the into the temp table.
>Becuase of the foreign key relationship I can't Drop the table.
>Any help will be appreciated
>Thanks
|||Tom What i want to end up with in the Tech table is:
- new synthetic key (id)
- Social Security Number (Current Primary Key)
- rest of table
With out loosing any of the current data
Thanks so so much
Tom Moreau wrote:[vbcol=seagreen]
>Could you change the FK to use ON DELETE CASCADE and then just update the
>PK?
>We have a ticket entry system that uses Social Security numbers as the
>Primary key Well we all know with privacy act and everything we need to
>replace this with a synthetic key.
>We have a Tech Table which has the primary key we want to change but we want
>to keep the primary key information.
>The foreign key is in table Ticket which is how we know who did the
>troubleshooting.
>Tom Moreau wrote:
>[quoted text clipped - 10 lines]
|||I'd do the following:
1) drop the FK constraint
2) add the column for the new key in both tables
3) update the data in the child table - sort of like the following (you
didn't give us your DDL):
update Child
set
NewCol = (select (p.NewCol) from Parent p
where p.OldCol = Child.OldCol)
4) drop the OldCol column from the child table
5) add the FK constraint on the new columns
Tom
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
..
"traderjoe" <u19885@.uwe> wrote in message news:5d8c88defc668@.uwe...
Tom What i want to end up with in the Tech table is:
- new synthetic key (id)
- Social Security Number (Current Primary Key)
- rest of table
With out loosing any of the current data
Thanks so so much
Tom Moreau wrote:[vbcol=seagreen]
>Could you change the FK to use ON DELETE CASCADE and then just update the
>PK?
>We have a ticket entry system that uses Social Security numbers as the
>Primary key Well we all know with privacy act and everything we need to
>replace this with a synthetic key.
>We have a Tech Table which has the primary key we want to change but we
>want
>to keep the primary key information.
>The foreign key is in table Ticket which is how we know who did the
>troubleshooting.
>Tom Moreau wrote:
>[quoted text clipped - 10 lines]
|||Is this the Steps Tom:
..
_______
| Tech | -- 1 -- --N [ Ticket ]
Social (Primary Key) ID
Name Tech_id references
Social (FK)
Address
zip
Phone
I need to add the new Primary to Tech. and still keep Social but not as
primary key
I believe these are the steps to accomplish whjat i need to do See above for
diagram
1. I think i need to create tech_temp and and copy my date to this table
2. Drop the foreigh key on Tech_id
3. Drop table tech
4. Create new Table Tech with ID sysenthic key
5. copy the data over from temp table
6. drop the temp table
7. recreate the Foreign key constraint on Ticket
Just don't know the commands to accomplish.
o drop the Foreign Key Contraint from Table Ticket Column Tech
I would
Tom Moreau wrote:[vbcol=seagreen]
>I'd do the following:
>1) drop the FK constraint
>2) add the column for the new key in both tables
>3) update the data in the child table - sort of like the following (you
>didn't give us your DDL):
>update Child
>set
> NewCol = (select (p.NewCol) from Parent p
> where p.OldCol = Child.OldCol)
>4) drop the OldCol column from the child table
>5) add the FK constraint on the new columns
>Tom What i want to end up with in the Tech table is:
> - new synthetic key (id)
> - Social Security Number (Current Primary Key)
> - rest of table
>With out loosing any of the current data
>Thanks so so much
>Tom Moreau wrote:
>[quoted text clipped - 15 lines]
Message posted via droptable.com
http://www.droptable.com/Uwe/Forums...erver/200603/1
|||I'd keep the Tech table.
1) Add the new tech ID column to Tech. Populate it as required.
2) Drop the FK constraint on Ticket:
alter table Ticket
drop constraint [The FK constraint name]
3) Update the Ticket table's Tech_Id column:
update Ticket
set
NewCol = (select (p.NewCol) from Tech p
where p.Tech_id= Ticket.Tech_id) -- assumes Tech_Id
is the new column name in the Tech table
4) Add the FK back:
alter table Ticket
add constraint [The FK constraint name]
references Tech (Tech_id)
Tom
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
..
"traderjoe via droptable.com" <u19885@.uwe> wrote in message
news:5d8e2bbeb8a32@.uwe...
Is this the Steps Tom:
..
_______
| Tech | -- 1 -- --N [ Ticket ]
Social (Primary Key) ID
Name Tech_id references
Social (FK)
Address
zip
Phone
I need to add the new Primary to Tech. and still keep Social but not as
primary key
I believe these are the steps to accomplish whjat i need to do See above for
diagram
1. I think i need to create tech_temp and and copy my date to this table
2. Drop the foreigh key on Tech_id
3. Drop table tech
4. Create new Table Tech with ID sysenthic key
5. copy the data over from temp table
6. drop the temp table
7. recreate the Foreign key constraint on Ticket
Just don't know the commands to accomplish.
o drop the Foreign Key Contraint from Table Ticket Column Tech
I would
Tom Moreau wrote:[vbcol=seagreen]
>I'd do the following:
>1) drop the FK constraint
>2) add the column for the new key in both tables
>3) update the data in the child table - sort of like the following (you
>didn't give us your DDL):
>update Child
>set
> NewCol = (select (p.NewCol) from Parent p
> where p.OldCol = Child.OldCol)
>4) drop the OldCol column from the child table
>5) add the FK constraint on the new columns
>Tom What i want to end up with in the Tech table is:
> - new synthetic key (id)
> - Social Security Number (Current Primary Key)
> - rest of table
>With out loosing any of the current data
>Thanks so so much
>Tom Moreau wrote:
>[quoted text clipped - 15 lines]
Message posted via droptable.com
http://www.droptable.com/Uwe/Forums...erver/200603/1
|||When do i make the new Column the Primary key and whats the code to do that?
Sorry, I am having a hard time with this, sometimes I am an idiot..
Tom Moreau wrote:[vbcol=seagreen]
>I'd keep the Tech table.
>1) Add the new tech ID column to Tech. Populate it as required.
>2) Drop the FK constraint on Ticket:
>alter table Ticket
>drop constraint [The FK constraint name]
>3) Update the Ticket table's Tech_Id column:
>update Ticket
>set
> NewCol = (select (p.NewCol) from Tech p
> where p.Tech_id= Ticket.Tech_id) -- assumes Tech_Id
>is the new column name in the Tech table
>4) Add the FK back:
>alter table Ticket
>add constraint [The FK constraint name]
>references Tech (Tech_id)
> Tom
>----
>Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
>SQL Server MVP
>Columnist, SQL Server Professional
>Toronto, ON Canada
>www.pinpub.com
>.
>Is this the Steps Tom:
>.
>_______
>| Tech | -- 1 -- --N [ Ticket ]
>--
>Social (Primary Key) ID
>Name Tech_id references
>Social (FK)
>Address
>zip
>Phone
>I need to add the new Primary to Tech. and still keep Social but not as
>primary key
>I believe these are the steps to accomplish whjat i need to do See above for
>diagram
>1. I think i need to create tech_temp and and copy my date to this table
>2. Drop the foreigh key on Tech_id
>3. Drop table tech
>4. Create new Table Tech with ID sysenthic key
>5. copy the data over from temp table
>6. drop the temp table
>7. recreate the Foreign key constraint on Ticket
>Just don't know the commands to accomplish.
>o drop the Foreign Key Contraint from Table Ticket Column Tech
>I would
>Tom Moreau wrote:
>[quoted text clipped - 25 lines]
Message posted via droptable.com
http://www.droptable.com/Uwe/Forums...erver/200603/1
|||When you add the new Tech_Id column to the Tech table, then:
alter table Tech
add
constraint PK_Tech primary key (Tech_Id)
Tom
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
..
"traderjoe via droptable.com" <u19885@.uwe> wrote in message
news:5d8fbc24e3545@.uwe...
When do i make the new Column the Primary key and whats the code to do
that?
Sorry, I am having a hard time with this, sometimes I am an idiot..
Tom Moreau wrote:[vbcol=seagreen]
>I'd keep the Tech table.
>1) Add the new tech ID column to Tech. Populate it as required.
>2) Drop the FK constraint on Ticket:
>alter table Ticket
>drop constraint [The FK constraint name]
>3) Update the Ticket table's Tech_Id column:
>update Ticket
>set
> NewCol = (select (p.NewCol) from Tech p
> where p.Tech_id= Ticket.Tech_id) -- assumes
> Tech_Id
>is the new column name in the Tech table
>4) Add the FK back:
>alter table Ticket
>add constraint [The FK constraint name]
>references Tech (Tech_id)
> Tom
>----
>Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
>SQL Server MVP
>Columnist, SQL Server Professional
>Toronto, ON Canada
>www.pinpub.com
>.
>Is this the Steps Tom:
>.
>_______
>| Tech | -- 1 -- --N [ Ticket ]
>--
>Social (Primary Key) ID
>Name Tech_id
>references
>Social (FK)
>Address
>zip
>Phone
>I need to add the new Primary to Tech. and still keep Social but not as
>primary key
>I believe these are the steps to accomplish whjat i need to do See above
>for
>diagram
>1. I think i need to create tech_temp and and copy my date to this table
>2. Drop the foreigh key on Tech_id
>3. Drop table tech
>4. Create new Table Tech with ID sysenthic key
>5. copy the data over from temp table
>6. drop the temp table
>7. recreate the Foreign key constraint on Ticket
>Just don't know the commands to accomplish.
>o drop the Foreign Key Contraint from Table Ticket Column Tech
>I would
>Tom Moreau wrote:
>[quoted text clipped - 25 lines]
Message posted via droptable.com
http://www.droptable.com/Uwe/Forums...erver/200603/1
sql

Replacing a Primary Key

Is there rules to replaceing a primary key? What are they?
I have a primary key that is a foreign key in another table.
I created a temp table and moved the into the temp table.
Becuase of the foreign key relationship I can't Drop the table.
Any help will be appreciated
ThanksCan you give us some more detail? What exactly is being moved? How about
posting the DDL for the tables involved?
Tom
----
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
.
"traderjoe" <u19885@.uwe> wrote in message news:5d8a399b37132@.uwe...
Is there rules to replaceing a primary key? What are they?
I have a primary key that is a foreign key in another table.
I created a temp table and moved the into the temp table.
Becuase of the foreign key relationship I can't Drop the table.
Any help will be appreciated
Thanks|||We have a ticket entry system that uses Social Security numbers as the
Primary key Well we all know with privacy act and everything we need to
replace this with a synthetic key.
We have a Tech Table which has the primary key we want to change but we want
to keep the primary key information.
The foreign key is in table Ticket which is how we know who did the
troubleshooting.
Tom Moreau wrote:
>Can you give us some more detail? What exactly is being moved? How about
>posting the DDL for the tables involved?
>Is there rules to replaceing a primary key? What are they?
>I have a primary key that is a foreign key in another table.
>I created a temp table and moved the into the temp table.
>Becuase of the foreign key relationship I can't Drop the table.
>Any help will be appreciated
>Thanks|||Could you change the FK to use ON DELETE CASCADE and then just update the
PK?
Tom
----
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
.
"traderjoe" <u19885@.uwe> wrote in message news:5d8b87d03ca52@.uwe...
We have a ticket entry system that uses Social Security numbers as the
Primary key Well we all know with privacy act and everything we need to
replace this with a synthetic key.
We have a Tech Table which has the primary key we want to change but we want
to keep the primary key information.
The foreign key is in table Ticket which is how we know who did the
troubleshooting.
Tom Moreau wrote:
>Can you give us some more detail? What exactly is being moved? How about
>posting the DDL for the tables involved?
>Is there rules to replaceing a primary key? What are they?
>I have a primary key that is a foreign key in another table.
>I created a temp table and moved the into the temp table.
>Becuase of the foreign key relationship I can't Drop the table.
>Any help will be appreciated
>Thanks|||Tom What i want to end up with in the Tech table is:
- new synthetic key (id)
- Social Security Number (Current Primary Key)
- rest of table
With out loosing any of the current data
Thanks so so much
Tom Moreau wrote:[vbcol=seagreen]
>Could you change the FK to use ON DELETE CASCADE and then just update the
>PK?
>We have a ticket entry system that uses Social Security numbers as the
>Primary key Well we all know with privacy act and everything we need to
>replace this with a synthetic key.
>We have a Tech Table which has the primary key we want to change but we wan
t
>to keep the primary key information.
>The foreign key is in table Ticket which is how we know who did the
>troubleshooting.
>Tom Moreau wrote:
>[quoted text clipped - 10 lines]|||I'd do the following:
1) drop the FK constraint
2) add the column for the new key in both tables
3) update the data in the child table - sort of like the following (you
didn't give us your DDL):
update Child
set
NewCol = (select (p.NewCol) from Parent p
where p.OldCol = Child.OldCol)
4) drop the OldCol column from the child table
5) add the FK constraint on the new columns
Tom
----
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
.
"traderjoe" <u19885@.uwe> wrote in message news:5d8c88defc668@.uwe...
Tom What i want to end up with in the Tech table is:
- new synthetic key (id)
- Social Security Number (Current Primary Key)
- rest of table
With out loosing any of the current data
Thanks so so much
Tom Moreau wrote:[vbcol=seagreen]
>Could you change the FK to use ON DELETE CASCADE and then just update the
>PK?
>We have a ticket entry system that uses Social Security numbers as the
>Primary key Well we all know with privacy act and everything we need to
>replace this with a synthetic key.
>We have a Tech Table which has the primary key we want to change but we
>want
>to keep the primary key information.
>The foreign key is in table Ticket which is how we know who did the
>troubleshooting.
>Tom Moreau wrote:
>[quoted text clipped - 10 lines]|||Is this the Steps Tom:
.
_______
| Tech | -- 1 -- --N [ Ticket ]
--
Social (Primary Key) ID
Name Tech_id references
Social (FK)
Address
zip
Phone
I need to add the new Primary to Tech. and still keep Social but not as
primary key
I believe these are the steps to accomplish whjat i need to do See above for
diagram
1. I think i need to create tech_temp and and copy my date to this table
2. Drop the foreigh key on Tech_id
3. Drop table tech
4. Create new Table Tech with ID sysenthic key
5. copy the data over from temp table
6. drop the temp table
7. recreate the Foreign key constraint on Ticket
Just don't know the commands to accomplish.
o drop the Foreign Key Contraint from Table Ticket Column Tech
I would
Tom Moreau wrote:[vbcol=seagreen]
>I'd do the following:
>1) drop the FK constraint
>2) add the column for the new key in both tables
>3) update the data in the child table - sort of like the following (you
>didn't give us your DDL):
>update Child
>set
> NewCol = (select (p.NewCol) from Parent p
> where p.OldCol = Child.OldCol)
>4) drop the OldCol column from the child table
>5) add the FK constraint on the new columns
>Tom What i want to end up with in the Tech table is:
> - new synthetic key (id)
> - Social Security Number (Current Primary Key)
> - rest of table
>With out loosing any of the current data
>Thanks so so much
>Tom Moreau wrote:
>[quoted text clipped - 15 lines]
Message posted via droptable.com
http://www.droptable.com/Uwe/Forum...server/200603/1|||I'd keep the Tech table.
1) Add the new tech ID column to Tech. Populate it as required.
2) Drop the FK constraint on Ticket:
alter table Ticket
drop constraint [The FK constraint name]
3) Update the Ticket table's Tech_Id column:
update Ticket
set
NewCol = (select (p.NewCol) from Tech p
where p.Tech_id= Ticket.Tech_id) -- assumes Tech_Id
is the new column name in the Tech table
4) Add the FK back:
alter table Ticket
add constraint [The FK constraint name]
references Tech (Tech_id)
Tom
----
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
.
"traderjoe via droptable.com" <u19885@.uwe> wrote in message
news:5d8e2bbeb8a32@.uwe...
Is this the Steps Tom:
.
_______
| Tech | -- 1 -- --N [ Ticket ]
--
Social (Primary Key) ID
Name Tech_id references
Social (FK)
Address
zip
Phone
I need to add the new Primary to Tech. and still keep Social but not as
primary key
I believe these are the steps to accomplish whjat i need to do See above for
diagram
1. I think i need to create tech_temp and and copy my date to this table
2. Drop the foreigh key on Tech_id
3. Drop table tech
4. Create new Table Tech with ID sysenthic key
5. copy the data over from temp table
6. drop the temp table
7. recreate the Foreign key constraint on Ticket
Just don't know the commands to accomplish.
o drop the Foreign Key Contraint from Table Ticket Column Tech
I would
Tom Moreau wrote:[vbcol=seagreen]
>I'd do the following:
>1) drop the FK constraint
>2) add the column for the new key in both tables
>3) update the data in the child table - sort of like the following (you
>didn't give us your DDL):
>update Child
>set
> NewCol = (select (p.NewCol) from Parent p
> where p.OldCol = Child.OldCol)
>4) drop the OldCol column from the child table
>5) add the FK constraint on the new columns
>Tom What i want to end up with in the Tech table is:
> - new synthetic key (id)
> - Social Security Number (Current Primary Key)
> - rest of table
>With out loosing any of the current data
>Thanks so so much
>Tom Moreau wrote:
>[quoted text clipped - 15 lines]
Message posted via droptable.com
http://www.droptable.com/Uwe/Forum...server/200603/1|||When do i make the new Column the Primary key and whats the code to do that
?
Sorry, I am having a hard time with this, sometimes I am an idiot..
Tom Moreau wrote:[vbcol=seagreen]
>I'd keep the Tech table.
>1) Add the new tech ID column to Tech. Populate it as required.
>2) Drop the FK constraint on Ticket:
>alter table Ticket
>drop constraint [The FK constraint name]
>3) Update the Ticket table's Tech_Id column:
>update Ticket
>set
> NewCol = (select (p.NewCol) from Tech p
> where p.Tech_id= Ticket.Tech_id) -- assumes Tech_I
d
>is the new column name in the Tech table
>4) Add the FK back:
>alter table Ticket
>add constraint [The FK constraint name]
>references Tech (Tech_id)
> Tom
>----
>Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
>SQL Server MVP
>Columnist, SQL Server Professional
>Toronto, ON Canada
>www.pinpub.com
>.
>Is this the Steps Tom:
>.
>_______
>| Tech | -- 1 -- --N [ Ticket ]
>--
>Social (Primary Key) ID
>Name Tech_id reference
s
>Social (FK)
>Address
>zip
>Phone
>I need to add the new Primary to Tech. and still keep Social but not as
>primary key
>I believe these are the steps to accomplish whjat i need to do See above fo
r
>diagram
>1. I think i need to create tech_temp and and copy my date to this table
>2. Drop the foreigh key on Tech_id
>3. Drop table tech
>4. Create new Table Tech with ID sysenthic key
>5. copy the data over from temp table
>6. drop the temp table
>7. recreate the Foreign key constraint on Ticket
>Just don't know the commands to accomplish.
>o drop the Foreign Key Contraint from Table Ticket Column Tech
>I would
>Tom Moreau wrote:
>[quoted text clipped - 25 lines]
Message posted via droptable.com
http://www.droptable.com/Uwe/Forum...server/200603/1|||When you add the new Tech_Id column to the Tech table, then:
alter table Tech
add
constraint PK_Tech primary key (Tech_Id)
Tom
----
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
.
"traderjoe via droptable.com" <u19885@.uwe> wrote in message
news:5d8fbc24e3545@.uwe...
When do i make the new Column the Primary key and whats the code to do
that?
Sorry, I am having a hard time with this, sometimes I am an idiot..
Tom Moreau wrote:[vbcol=seagreen]
>I'd keep the Tech table.
>1) Add the new tech ID column to Tech. Populate it as required.
>2) Drop the FK constraint on Ticket:
>alter table Ticket
>drop constraint [The FK constraint name]
>3) Update the Ticket table's Tech_Id column:
>update Ticket
>set
> NewCol = (select (p.NewCol) from Tech p
> where p.Tech_id= Ticket.Tech_id) -- assumes
> Tech_Id
>is the new column name in the Tech table
>4) Add the FK back:
>alter table Ticket
>add constraint [The FK constraint name]
>references Tech (Tech_id)
> Tom
>----
>Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
>SQL Server MVP
>Columnist, SQL Server Professional
>Toronto, ON Canada
>www.pinpub.com
>.
>Is this the Steps Tom:
>.
>_______
>| Tech | -- 1 -- --N [ Ticket ]
>--
>Social (Primary Key) ID
>Name Tech_id
>references
>Social (FK)
>Address
>zip
>Phone
>I need to add the new Primary to Tech. and still keep Social but not as
>primary key
>I believe these are the steps to accomplish whjat i need to do See above
>for
>diagram
>1. I think i need to create tech_temp and and copy my date to this table
>2. Drop the foreigh key on Tech_id
>3. Drop table tech
>4. Create new Table Tech with ID sysenthic key
>5. copy the data over from temp table
>6. drop the temp table
>7. recreate the Foreign key constraint on Ticket
>Just don't know the commands to accomplish.
>o drop the Foreign Key Contraint from Table Ticket Column Tech
>I would
>Tom Moreau wrote:
>[quoted text clipped - 25 lines]
Message posted via droptable.com
http://www.droptable.com/Uwe/Forum...server/200603/1

Replacing a Primary Key

Is there rules to replaceing a primary key? What are they?
I have a primary key that is a foreign key in another table.
I created a temp table and moved the into the temp table.
Becuase of the foreign key relationship I can't Drop the table.
Any help will be appreciated
ThanksCan you give us some more detail? What exactly is being moved? How about
posting the DDL for the tables involved?
--
Tom
----
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
.
"traderjoe" <u19885@.uwe> wrote in message news:5d8a399b37132@.uwe...
Is there rules to replaceing a primary key? What are they?
I have a primary key that is a foreign key in another table.
I created a temp table and moved the into the temp table.
Becuase of the foreign key relationship I can't Drop the table.
Any help will be appreciated
Thanks|||We have a ticket entry system that uses Social Security numbers as the
Primary key Well we all know with privacy act and everything we need to
replace this with a synthetic key.
We have a Tech Table which has the primary key we want to change but we want
to keep the primary key information.
The foreign key is in table Ticket which is how we know who did the
troubleshooting.
Tom Moreau wrote:
>Can you give us some more detail? What exactly is being moved? How about
>posting the DDL for the tables involved?
>Is there rules to replaceing a primary key? What are they?
>I have a primary key that is a foreign key in another table.
>I created a temp table and moved the into the temp table.
>Becuase of the foreign key relationship I can't Drop the table.
>Any help will be appreciated
>Thanks|||Could you change the FK to use ON DELETE CASCADE and then just update the
PK?
--
Tom
----
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
.
"traderjoe" <u19885@.uwe> wrote in message news:5d8b87d03ca52@.uwe...
We have a ticket entry system that uses Social Security numbers as the
Primary key Well we all know with privacy act and everything we need to
replace this with a synthetic key.
We have a Tech Table which has the primary key we want to change but we want
to keep the primary key information.
The foreign key is in table Ticket which is how we know who did the
troubleshooting.
Tom Moreau wrote:
>Can you give us some more detail? What exactly is being moved? How about
>posting the DDL for the tables involved?
>Is there rules to replaceing a primary key? What are they?
>I have a primary key that is a foreign key in another table.
>I created a temp table and moved the into the temp table.
>Becuase of the foreign key relationship I can't Drop the table.
>Any help will be appreciated
>Thanks|||Tom What i want to end up with in the Tech table is:
- new synthetic key (id)
- Social Security Number (Current Primary Key)
- rest of table
With out loosing any of the current data
Thanks so so much
Tom Moreau wrote:
>Could you change the FK to use ON DELETE CASCADE and then just update the
>PK?
>We have a ticket entry system that uses Social Security numbers as the
>Primary key Well we all know with privacy act and everything we need to
>replace this with a synthetic key.
>We have a Tech Table which has the primary key we want to change but we want
>to keep the primary key information.
>The foreign key is in table Ticket which is how we know who did the
>troubleshooting.
>Tom Moreau wrote:
>>Can you give us some more detail? What exactly is being moved? How about
>>posting the DDL for the tables involved?
>[quoted text clipped - 10 lines]
>>Thanks|||I'd do the following:
1) drop the FK constraint
2) add the column for the new key in both tables
3) update the data in the child table - sort of like the following (you
didn't give us your DDL):
update Child
set
NewCol = (select (p.NewCol) from Parent p
where p.OldCol = Child.OldCol)
4) drop the OldCol column from the child table
5) add the FK constraint on the new columns
--
Tom
----
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
.
"traderjoe" <u19885@.uwe> wrote in message news:5d8c88defc668@.uwe...
Tom What i want to end up with in the Tech table is:
- new synthetic key (id)
- Social Security Number (Current Primary Key)
- rest of table
With out loosing any of the current data
Thanks so so much
Tom Moreau wrote:
>Could you change the FK to use ON DELETE CASCADE and then just update the
>PK?
>We have a ticket entry system that uses Social Security numbers as the
>Primary key Well we all know with privacy act and everything we need to
>replace this with a synthetic key.
>We have a Tech Table which has the primary key we want to change but we
>want
>to keep the primary key information.
>The foreign key is in table Ticket which is how we know who did the
>troubleshooting.
>Tom Moreau wrote:
>>Can you give us some more detail? What exactly is being moved? How about
>>posting the DDL for the tables involved?
>[quoted text clipped - 10 lines]
>>Thanks|||Is this the Steps Tom:
.
_______
| Tech | -- 1 -- --N [ Ticket ]
--
Social (Primary Key) ID
Name Tech_id references
Social (FK)
Address
zip
Phone
I need to add the new Primary to Tech. and still keep Social but not as
primary key
I believe these are the steps to accomplish whjat i need to do See above for
diagram
1. I think i need to create tech_temp and and copy my date to this table
2. Drop the foreigh key on Tech_id
3. Drop table tech
4. Create new Table Tech with ID sysenthic key
5. copy the data over from temp table
6. drop the temp table
7. recreate the Foreign key constraint on Ticket
Just don't know the commands to accomplish.
o drop the Foreign Key Contraint from Table Ticket Column Tech
I would
Tom Moreau wrote:
>I'd do the following:
>1) drop the FK constraint
>2) add the column for the new key in both tables
>3) update the data in the child table - sort of like the following (you
>didn't give us your DDL):
>update Child
>set
> NewCol = (select (p.NewCol) from Parent p
> where p.OldCol = Child.OldCol)
>4) drop the OldCol column from the child table
>5) add the FK constraint on the new columns
>Tom What i want to end up with in the Tech table is:
> - new synthetic key (id)
> - Social Security Number (Current Primary Key)
> - rest of table
>With out loosing any of the current data
>Thanks so so much
>Tom Moreau wrote:
>>Could you change the FK to use ON DELETE CASCADE and then just update the
>>PK?
>[quoted text clipped - 15 lines]
>>Thanks
--
Message posted via SQLMonster.com
http://www.sqlmonster.com/Uwe/Forums.aspx/sql-server/200603/1|||I'd keep the Tech table.
1) Add the new tech ID column to Tech. Populate it as required.
2) Drop the FK constraint on Ticket:
alter table Ticket
drop constraint [The FK constraint name]
3) Update the Ticket table's Tech_Id column:
update Ticket
set
NewCol = (select (p.NewCol) from Tech p
where p.Tech_id= Ticket.Tech_id) -- assumes Tech_Id
is the new column name in the Tech table
4) Add the FK back:
alter table Ticket
add constraint [The FK constraint name]
references Tech (Tech_id)
Tom
----
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
.
"traderjoe via SQLMonster.com" <u19885@.uwe> wrote in message
news:5d8e2bbeb8a32@.uwe...
Is this the Steps Tom:
.
_______
| Tech | -- 1 -- --N [ Ticket ]
--
Social (Primary Key) ID
Name Tech_id references
Social (FK)
Address
zip
Phone
I need to add the new Primary to Tech. and still keep Social but not as
primary key
I believe these are the steps to accomplish whjat i need to do See above for
diagram
1. I think i need to create tech_temp and and copy my date to this table
2. Drop the foreigh key on Tech_id
3. Drop table tech
4. Create new Table Tech with ID sysenthic key
5. copy the data over from temp table
6. drop the temp table
7. recreate the Foreign key constraint on Ticket
Just don't know the commands to accomplish.
o drop the Foreign Key Contraint from Table Ticket Column Tech
I would
Tom Moreau wrote:
>I'd do the following:
>1) drop the FK constraint
>2) add the column for the new key in both tables
>3) update the data in the child table - sort of like the following (you
>didn't give us your DDL):
>update Child
>set
> NewCol = (select (p.NewCol) from Parent p
> where p.OldCol = Child.OldCol)
>4) drop the OldCol column from the child table
>5) add the FK constraint on the new columns
>Tom What i want to end up with in the Tech table is:
> - new synthetic key (id)
> - Social Security Number (Current Primary Key)
> - rest of table
>With out loosing any of the current data
>Thanks so so much
>Tom Moreau wrote:
>>Could you change the FK to use ON DELETE CASCADE and then just update the
>>PK?
>[quoted text clipped - 15 lines]
>>Thanks
--
Message posted via SQLMonster.com
http://www.sqlmonster.com/Uwe/Forums.aspx/sql-server/200603/1|||When do i make the new Column the Primary key and whats the code to do that?
Sorry, I am having a hard time with this, sometimes I am an idiot..
Tom Moreau wrote:
>I'd keep the Tech table.
>1) Add the new tech ID column to Tech. Populate it as required.
>2) Drop the FK constraint on Ticket:
>alter table Ticket
>drop constraint [The FK constraint name]
>3) Update the Ticket table's Tech_Id column:
>update Ticket
>set
> NewCol = (select (p.NewCol) from Tech p
> where p.Tech_id= Ticket.Tech_id) -- assumes Tech_Id
>is the new column name in the Tech table
>4) Add the FK back:
>alter table Ticket
>add constraint [The FK constraint name]
>references Tech (Tech_id)
> Tom
>----
>Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
>SQL Server MVP
>Columnist, SQL Server Professional
>Toronto, ON Canada
>www.pinpub.com
>.
>Is this the Steps Tom:
>.
>_______
>| Tech | -- 1 -- --N [ Ticket ]
>--
>Social (Primary Key) ID
>Name Tech_id references
>Social (FK)
>Address
>zip
>Phone
>I need to add the new Primary to Tech. and still keep Social but not as
>primary key
>I believe these are the steps to accomplish whjat i need to do See above for
>diagram
>1. I think i need to create tech_temp and and copy my date to this table
>2. Drop the foreigh key on Tech_id
>3. Drop table tech
>4. Create new Table Tech with ID sysenthic key
>5. copy the data over from temp table
>6. drop the temp table
>7. recreate the Foreign key constraint on Ticket
>Just don't know the commands to accomplish.
>o drop the Foreign Key Contraint from Table Ticket Column Tech
>I would
>Tom Moreau wrote:
>>I'd do the following:
>[quoted text clipped - 25 lines]
>>Thanks
--
Message posted via SQLMonster.com
http://www.sqlmonster.com/Uwe/Forums.aspx/sql-server/200603/1|||When you add the new Tech_Id column to the Tech table, then:
alter table Tech
add
constraint PK_Tech primary key (Tech_Id)
--
Tom
----
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinpub.com
.
"traderjoe via SQLMonster.com" <u19885@.uwe> wrote in message
news:5d8fbc24e3545@.uwe...
When do i make the new Column the Primary key and whats the code to do
that?
Sorry, I am having a hard time with this, sometimes I am an idiot..
Tom Moreau wrote:
>I'd keep the Tech table.
>1) Add the new tech ID column to Tech. Populate it as required.
>2) Drop the FK constraint on Ticket:
>alter table Ticket
>drop constraint [The FK constraint name]
>3) Update the Ticket table's Tech_Id column:
>update Ticket
>set
> NewCol = (select (p.NewCol) from Tech p
> where p.Tech_id= Ticket.Tech_id) -- assumes
> Tech_Id
>is the new column name in the Tech table
>4) Add the FK back:
>alter table Ticket
>add constraint [The FK constraint name]
>references Tech (Tech_id)
> Tom
>----
>Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
>SQL Server MVP
>Columnist, SQL Server Professional
>Toronto, ON Canada
>www.pinpub.com
>.
>Is this the Steps Tom:
>.
>_______
>| Tech | -- 1 -- --N [ Ticket ]
>--
>Social (Primary Key) ID
>Name Tech_id
>references
>Social (FK)
>Address
>zip
>Phone
>I need to add the new Primary to Tech. and still keep Social but not as
>primary key
>I believe these are the steps to accomplish whjat i need to do See above
>for
>diagram
>1. I think i need to create tech_temp and and copy my date to this table
>2. Drop the foreigh key on Tech_id
>3. Drop table tech
>4. Create new Table Tech with ID sysenthic key
>5. copy the data over from temp table
>6. drop the temp table
>7. recreate the Foreign key constraint on Ticket
>Just don't know the commands to accomplish.
>o drop the Foreign Key Contraint from Table Ticket Column Tech
>I would
>Tom Moreau wrote:
>>I'd do the following:
>[quoted text clipped - 25 lines]
>>Thanks
--
Message posted via SQLMonster.com
http://www.sqlmonster.com/Uwe/Forums.aspx/sql-server/200603/1

Replacing a NULL in a view

I have created a view over a table that extracts production
information. The undelying table contains rows not just for product
code changed but also for speed changes.
The folloing view fillers out the speed changes and seems to work bar
one small problem. The EndTime for the currently running product will
be NULL as it is still running. This is a proble as I miss the current
production information. Is there a way to make the EndTime NULL in the
MAX function if the table value is NULL or could NULL be replaced with
the current Datetime
SELECT TOP 100 PERCENT *, DATEDIFF(hh, StartTime, EndTime) AS
HoursRun
FROM (SELECT Unit, Line, ProductCode, MIN(StartTime) AS
StartTime, MAX(EndTime) AS EndTime
FROM D_ProductionLog
GROUP BY Unit, Line, ProductCode) ProdLog
ORDER BY StartTime, Unit, Line, ProductCode
Many thanks
JimYou can use ISNULL to provide a different value for one that is NULL.
for example
SELECT TOP 100 PERCENT *, DATEDIFF(hh, StartTime, EndTime) AS
HoursRun
FROM (SELECT Unit, Line, ProductCode, MIN(StartTime) AS
StartTime, ISNULL(MAX(EndTime), GETDATE()) AS EndTime
FROM D_ProductionLog
GROUP BY Unit, Line, ProductCode) ProdLog
ORDER BY StartTime, Unit, Line, ProductCode
--
Jacco Schalkwijk MCDBA, MCSD, MCSE
Database Administrator
Eurostop Ltd.
"Jim" <jim.holmes@.devro-casings.com> wrote in message
news:68dfae14.0307230512.64cddbc6@.posting.google.com...
> I have created a view over a table that extracts production
> information. The undelying table contains rows not just for product
> code changed but also for speed changes.
> The folloing view fillers out the speed changes and seems to work bar
> one small problem. The EndTime for the currently running product will
> be NULL as it is still running. This is a proble as I miss the current
> production information. Is there a way to make the EndTime NULL in the
> MAX function if the table value is NULL or could NULL be replaced with
> the current Datetime
> SELECT TOP 100 PERCENT *, DATEDIFF(hh, StartTime, EndTime) AS
> HoursRun
> FROM (SELECT Unit, Line, ProductCode, MIN(StartTime) AS
> StartTime, MAX(EndTime) AS EndTime
> FROM D_ProductionLog
> GROUP BY Unit, Line, ProductCode) ProdLog
> ORDER BY StartTime, Unit, Line, ProductCode
> Many thanks
> Jim

Replacing a column with a foreign key

In an *existing* database, how would you remove the City column in theEmployees table, and put in the CityID key column from the Cities table?first you would add a cityid column with alter table add column syntax.
Then to add the data, you could do a join with cities table.

UPDATE
Employees
SET
Cityid = C.CityID
FROM
Employees E
INNER JOIN Cities C
ON E.city = C.city

Then, removing the city column should be as simple as alter table remove column.|||

The following simplified version also works:

UPDATE Employees
SET Cityid = C.CityID
FROM Cities C
WHERE Employees.City = C.City

Replacing a character

Hi

I have a table with column type as ntext. I need to modify the column value. I wanted to replace a given character\string with another one in this column. Any assistance on this is highly appreciated.

Thanks!

Santhosh

Santhosh,

1) If the text in the column is not too long, you can cast ntext to nvarchar and use replace function.

2) check this link http://www.webpowersoftware.co.uk/FORUMS/ShowPost.aspx?PostID=336

rgds,

v r kumar

replacing [XFO=BM] in a column

Hi,
I have a table that contains text columns with data containing some tags
like [XFO=BM] in it.
I'd like to remove these and am using a view that contains calls to a
function to do this, but it doesn't work if the tags have square brackets
surrounding them.
i.e. set @.working = replace (@.working, '[XFO=DN]', '')
doesn't work.
Does anyone know how I can do this, or how I need to delimit the []s to make
the tags vanish?
Thanks in advance,
IanYou need to escape the opening bracket:
set @.working = replace (@.working, '[[]XFO=DN]', '')
ML
http://milambda.blogspot.com/|||Not sure i've understood correctly as the following works for me on SQL2k
DECLARE @.WORKING VARCHAR(50)
SET @.wORKING = '[XFO=DN]'
SELECT replace (@.working, '[XFO=DN]', '')
Does the problem lie in the function ...? Are you using LIKE anywhere ...?
From Books Online
Symbol
Meaning
LIKE '[ [ ]' [
HTH. Ryan
"Ian Jagger" <IanJagger@.discussions.microsoft.com> wrote in message
news:C3850ACE-88F8-437E-94C5-D5FCD83DAEE9@.microsoft.com...
> Hi,
> I have a table that contains text columns with data containing some tags
> like [XFO=BM] in it.
> I'd like to remove these and am using a view that contains calls to a
> function to do this, but it doesn't work if the tags have square brackets
> surrounding them.
> i.e. set @.working = replace (@.working, '[XFO=DN]', '')
> doesn't work.
> Does anyone know how I can do this, or how I need to delimit the []s to
> make
> the tags vanish?
> Thanks in advance,
> Ian|||
"ML" wrote:

> You need to escape the opening bracket:
> set @.working = replace (@.working, '[[]XFO=DN]', '')
Thanks for that, only unfortunately that didn't work. Delimiting both sets
of brackets didn't work either.
Any other ideas?
Ian|||Sorry, my bad. Ryan has a better answer. What was I thinking? No one knows.
ML
http://milambda.blogspot.com/|||
> Not sure i've understood correctly as the following works for me on SQL2k
> DECLARE @.WORKING VARCHAR(50)
> SET @.wORKING = '[XFO=DN]'
> SELECT replace (@.working, '[XFO=DN]', '')
> Does the problem lie in the function ...?
Hmmm, well the function although long is relatively straightforward...
ALTER FUNCTION convertPropertyTitle (@.inp text)
returns varchar (8000)
as
begin
if @.inp is null
return ' '
declare @.working varchar (8000)
set @.working = replace (cast (@.inp as varchar (8000)),
'{\rtf1\ansi\ansicpg1252\deff0\deflang10
33', '')
set @.working = replace (@.working, '{\rtf1\ansi\deff0{\fonttbl{\f0\fnil MS
Sans Serif;}}', '')
set @.working = replace (@.working,
'\rtf1\ansi\deff0{\fonttbl{\f0\fnil\fprq
2\fcharset0 Times New Roman;', '')
set @.working = replace (@.working, '{\fonttbl{\f0\fnil MS Sans Serif;}}', '')
set @.working = replace (@.working, '{\fonttbl{\f0\fnil MS Sans Serif;', '')
set @.working = replace (@.working, '{\f1\fnil\fcharset0 MS Sans Serif;}}', ''
)
set @.working = replace (@.working, '\fonttbl{\f0\fnil\fcharset0 MS Sans
Serif;}{\f1\fnil MS Sans Serif;', '')
set @.working = replace (@.working, '\fonttbl{\f0\fnil\fprq2\fcharset0 Times
New Roman;', '')
set @.working = replace (@.working, '\f1\fnil MS Sans Serif;', '')
set @.working = replace (@.working, '\viewkind4\uc1\pard\f0\fs16', '')
set @.working = replace (@.working, '\viewkind4\uc1\pard\b\f0\fs16', '<b>')
set @.working = replace (@.working, '\viewkind4\uc1\pard\lang1033\b\f0\fs16'
,
'<b>')
set @.working = replace (@.working, '\viewkind4\uc1\pard\ul\b\f0\fs16',
'<u><b>')
set @.working = replace (@.working, '\viewkind4\uc1\pard\ul\f0\fs16', '<u>')
set @.working = replace (@.working, '\viewkind4\uc1 d\i\fs16', '')
set @.working = replace (@.working, '\viewkind4\uc1\pard\i\f0\fs16', '<i>')
set @.working = replace (@.working, '\viewkind4\uc1\pard\ul\b\i\f0\fs16',
'<u><b><i>')
set @.working = replace (@.working, '\viewkind4\uc1\pard\b\i\f0\fs16', '<b><i>
')
set @.working = replace (@.working, '\viewkind4\uc1\pard\f0\fs24', '')
set @.working = replace (@.working, '\viewkind4\uc1\pard\lang2057\f0\fs20', ''
)
set @.working = replace (@.working, '\viewkind4\uc1\pard\f0\fs20', '')
set @.working = replace (@.working, '\viewkind4\uc1\pard\lang2057\b\f0\fs16'
,
'<b>')
set @.working = replace (@.working, '}', '')
set @.working = replace (@.working, '{', '')
set @.working = replace (@.working, ' ', '')
set @.working = replace (@.working, '\ulnone', '</u>')
set @.working = replace (@.working, '\ul', '<u>')
set @.working = replace (@.working, '\lang2057\b\f1', '<b>')
set @.working = replace (@.working, '\lang1033\b\f0', '<b>')
set @.working = replace (@.working, '\lang1033', '')
set @.working = replace (@.working, '\lang2057', '')
set @.working = replace (@.working, '\lang2057\fs20', '')
set @.working = replace (@.working, '\b0', '</b>')
set @.working = replace (@.working, '\b', '<b>')
set @.working = replace (@.working, '\i0', '</i>')
set @.working = replace (@.working, '\i', '<i>')
set @.working = replace (@.working, 'SIGNED
\f1''85''85''85''85''85''85''85'
'85''85''85''85''85''85''85''
85''85', '')
set @.working = replace (@.working,
'DATE''85''85''85''85''85''85''85
''85''85''85''85''85''85''85\
''85''85''85', '')
set @.working = replace (@.working, '\f0', '')
set @.working = replace (@.working, '\f1', '')
set @.working = replace (@.working, '\fs20', '')
set @.working = replace (@.working, '\fs16', '')
set @.working = replace (@.working, char (10), '')
set @.working = replace (@.working, char (13), '')
set @.working = replace (@.working, '\tab', '')
set @.working = replace (@.working, '\super', '')
set @.working = replace (@.working, '\nosupersub', '')
set @.working = replace (@.working, '[WAITPHOTO]', '')
set @.working = replace (@.working, '''a3', '￡')
set @.working = replace (@.working, '\par', '<BR>')
set @.working = replace (@.working, '[[]XFO=DN]', '')
set @.working = replace (@.working, '[[]XFO=BN]', '')
set @.working = replace (@.working, '[[]XFO=CN]', '')
set @.working = replace (@.working, '[[]XFO=BM]', '')
set @.working = replace (@.working, '[[]XFO=CM]', '')
return @.working
end

> Are you using LIKE anywhere ...?
I then do a
ALTER view propertiesProperty
as
select reference, dbo. convertPropertyTitle(PropertyAccommodati
on)
PropertyAccommodation, dbo. convertPropertyTitle(propertyfulldetails
)
propertyfulldetails, dbo.convertPropertyTitle(propertysituation)
propertysituation, dbo.convertPropertyTitle(propertytitle) propertytitle
from properties
then reference it as
select * from propertiesproperty
where reference = 'xxx3333'
So no likes anywhere.
Thanks,
Ian

> From Books Online
> Symbol
> Meaning
> LIKE '[ [ ]' [
>
> --
> HTH. Ryan
> "Ian Jagger" <IanJagger@.discussions.microsoft.com> wrote in message
> news:C3850ACE-88F8-437E-94C5-D5FCD83DAEE9@.microsoft.com...
>
>