Newbie: Updating record with User information

Hello,

I have a table that has a UserUpdated field which has a default value of
SUSER_SNAME(). This works great when the record is created, but I'd like to
also update this value when the record is changed. If I understand things
correctly, I'll need a trigger to do this, but I've never created a trigger
before. Is this an easy thing to accomplish?

Thanks!

RickRico (you@.me.com) writes:

Quote:

Originally Posted by

I have a table that has a UserUpdated field which has a default value of
SUSER_SNAME(). This works great when the record is created, but I'd
like to also update this value when the record is changed. If I
understand things correctly, I'll need a trigger to do this, but I've
never created a trigger before. Is this an easy thing to accomplish?

CREATE TRIGGER tbltri ON tbl FOR INSERT,UPDATE AS
UPDATE tbl
SET moduser = SYSTEM_USER
FROM tbl t
JOIN inserted i ON t.pkcol = i.pkcol

SYSTEM_USER is the ANSI version of suser_sname() and easier to spell. :-)

The table "inserted" is a virtual tables that holds the rows that
were inserted or the after-image of the updated rows. There is also
a table "deleted" which holds deleted rows and the before-image of
updated rows.

A trigger fires once per statement, so there can be many rows in these
tables.

--
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|||That's excellent! Thank you very much for your help Erland, that was
exactly what I needed! (that will make coding in VB much easier. ;)

Rick

"Erland Sommarskog" <esquel@.sommarskog.sewrote in message
news:Xns98ADF09B38EBDYazorman@.127.0.0.1...

Quote:

Originally Posted by

Rico (you@.me.com) writes:

Quote:

Originally Posted by

>I have a table that has a UserUpdated field which has a default value of
>SUSER_SNAME(). This works great when the record is created, but I'd
>like to also update this value when the record is changed. If I
>understand things correctly, I'll need a trigger to do this, but I've
>never created a trigger before. Is this an easy thing to accomplish?

>
CREATE TRIGGER tbltri ON tbl FOR INSERT,UPDATE AS
UPDATE tbl
SET moduser = SYSTEM_USER
FROM tbl t
JOIN inserted i ON t.pkcol = i.pkcol
>
SYSTEM_USER is the ANSI version of suser_sname() and easier to spell. :-)
>
The table "inserted" is a virtual tables that holds the rows that
were inserted or the after-image of the updated rows. There is also
a table "deleted" which holds deleted rows and the before-image of
updated rows.
>
A trigger fires once per statement, so there can be many rows in these
tables.
>
>
--
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

|||On Jan 3, 4:38 pm, Erland Sommarskog <esq...@.sommarskog.sewrote:

Quote:

Originally Posted by

Rico (y...@.me.com) writes:

Quote:

Originally Posted by

I have a table that has a UserUpdatedfieldwhich has adefaultvalueof
SUSER_SNAME(). This works great when the record is created, but I'd
like to alsoupdatethisvaluewhen the record is changed. If I
understand things correctly, I'll need a trigger to do this, but I've
never created a trigger before. Is this an easy thing to accomplish?

>
CREATE TRIGGER tbltri ON tbl FOR INSERT,UPDATEASUPDATEtbl
SET moduser = SYSTEM_USER
FROM tbl t
JOIN inserted i ON t.pkcol = i.pkcol
>
SYSTEM_USER is the ANSI version of suser_sname() and easier to spell. :-)
>
The table "inserted" is a virtual tables that holds the rows that
were inserted or the after-image of the updated rows. There is also
a table "deleted" which holds deleted rows and the before-image of
updated rows.
>
A trigger fires once per statement, so there can be many rows in these
tables.
>
--
Erland Sommarskog, SQL Server MVP, esq...@.sommarskog.se
>
Books Online for SQL Server 2005 athttp://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/books...
Books Online for SQL Server 2000 athttp://www.microsoft.com/sql/prodinfo/previousversions/books.mspx

I've come across this same issue...so I basically have to create a
trigger for each table in my database to update the username/modified
fields on each update. Is there a way to create a global update
trigger that will fire when any table with those fields is updated?

Thanks.
Rayne|||Rayne (wifetalks@.gmail.com) writes:

Quote:

Originally Posted by

I've come across this same issue...so I basically have to create a
trigger for each table in my database to update the username/modified
fields on each update. Is there a way to create a global update
trigger that will fire when any table with those fields is updated?

No, but you could write a program to generate them.

You could also consider third-party tools ApexSql (www.apexsql.com)
has SQL Audit, for instance. I have not tried it myself.

--
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