SQL Clone
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


INSTEAD OF trigger and OUTPUT clause


INSTEAD OF trigger and OUTPUT clause

Author
Message
Daniel Bowlin
Daniel Bowlin
SSCoach
SSCoach (17K reputation)SSCoach (17K reputation)SSCoach (17K reputation)SSCoach (17K reputation)SSCoach (17K reputation)SSCoach (17K reputation)SSCoach (17K reputation)SSCoach (17K reputation)

Group: General Forum Members
Points: 17642 Visits: 2629
Definitely a head scratcher. Thanks.
Darren Wallace
Darren Wallace
Mr or Mrs. 500
Mr or Mrs. 500 (520 reputation)Mr or Mrs. 500 (520 reputation)Mr or Mrs. 500 (520 reputation)Mr or Mrs. 500 (520 reputation)Mr or Mrs. 500 (520 reputation)Mr or Mrs. 500 (520 reputation)Mr or Mrs. 500 (520 reputation)Mr or Mrs. 500 (520 reputation)

Group: General Forum Members
Points: 520 Visits: 1459
Bradley Deem (5/13/2010)
Toreador (5/13/2010)
Interesting - it never occurred to me that the identity values wouldn't be available in the inserted table!
So how would you get the identity values of the rows you'd just inserted?


Change the trigger as follows. Of course, I'm not sure how you would capture the output result set, save using the temp table method as previously mentioned, but then the caller would have to know to look for that temp table.
CREATE TRIGGER TestTrigger ON TestTable
INSTEAD OF INSERT
AS
INSERT TestTable (string)
OUTPUT INSERTED.*
SELECT CASE WHEN string = 'TestString' THEN string ELSE 'Stub' END
FROM inserted



Excellent question, I definitely learned something today!


Wow, I can't decide whether I'm amazed at the ingenouity in making an INSERT statement do that or appalled that an INSERT statement can be made to do. Probably both. Bradley, that's a beautiful piece of code, excuse me now, I have to go disinfect my dev server with bleach and thermite.
Excellent QOTD.
-DW
Koen Verbeeck
Koen Verbeeck
SSC Guru
SSC Guru (147K reputation)SSC Guru (147K reputation)SSC Guru (147K reputation)SSC Guru (147K reputation)SSC Guru (147K reputation)SSC Guru (147K reputation)SSC Guru (147K reputation)SSC Guru (147K reputation)

Group: General Forum Members
Points: 147190 Visits: 13351
Nice question. And not so easy...


How to post forum questions.
Need an answer? No, you need a question.
What’s the deal with Excel & SSIS?
My blog at SQLKover.

MCSE Business Intelligence - Microsoft Data Platform MVP
Chris Houghton
Chris Houghton
Ten Centuries
Ten Centuries (1.3K reputation)Ten Centuries (1.3K reputation)Ten Centuries (1.3K reputation)Ten Centuries (1.3K reputation)Ten Centuries (1.3K reputation)Ten Centuries (1.3K reputation)Ten Centuries (1.3K reputation)Ten Centuries (1.3K reputation)

Group: General Forum Members
Points: 1270 Visits: 1715
Good learning question, a real tough one.
Tom Thomson
Tom Thomson
SSC Guru
SSC Guru (51K reputation)SSC Guru (51K reputation)SSC Guru (51K reputation)SSC Guru (51K reputation)SSC Guru (51K reputation)SSC Guru (51K reputation)SSC Guru (51K reputation)SSC Guru (51K reputation)

Group: General Forum Members
Points: 51094 Visits: 13160
Good question. Had me gawping at the insert statement for a while because I didn't know the syntax of the OUTPUT clause, so now I've learned something, but once I realised that the output...into bit wasn't specifying anything about what was to be inserted the answer was obvious because the inserted table can't have post-trigger values in it (because the trigger has the inserted table available to it when it starts execution).

Tom

sandeepivs
sandeepivs
SSC Veteran
SSC Veteran (224 reputation)SSC Veteran (224 reputation)SSC Veteran (224 reputation)SSC Veteran (224 reputation)SSC Veteran (224 reputation)SSC Veteran (224 reputation)SSC Veteran (224 reputation)SSC Veteran (224 reputation)

Group: General Forum Members
Points: 224 Visits: 69
hi,
As I look into the Output Clause,
While we use insert command

then the Temp table i.e @tab
should be shown only the inserted values only right?But now the output is having some 0's why?
ipkunte
ipkunte
Valued Member
Valued Member (73 reputation)Valued Member (73 reputation)Valued Member (73 reputation)Valued Member (73 reputation)Valued Member (73 reputation)Valued Member (73 reputation)Valued Member (73 reputation)Valued Member (73 reputation)

Group: General Forum Members
Points: 73 Visits: 5
When I ran the script I got the following errors.

Msg 170, Level 15, State 1, Line 5
Line 5: Incorrect syntax near 'OUTPUT'.
Msg 170, Level 15, State 1, Line 7
Line 7: Incorrect syntax near 'x'.


Can anyone point out the reason?

Thanks
Stewart "Arturius" Campbell
Stewart "Arturius" Campbell
SSC-Dedicated
SSC-Dedicated (35K reputation)SSC-Dedicated (35K reputation)SSC-Dedicated (35K reputation)SSC-Dedicated (35K reputation)SSC-Dedicated (35K reputation)SSC-Dedicated (35K reputation)SSC-Dedicated (35K reputation)SSC-Dedicated (35K reputation)

Group: General Forum Members
Points: 35679 Visits: 7706
ipkunte (7/6/2010)
When I ran the script I got the following errors.

Msg 170, Level 15, State 1, Line 5
Line 5: Incorrect syntax near 'OUTPUT'.
Msg 170, Level 15, State 1, Line 7
Line 7: Incorrect syntax near 'x'.


Can anyone point out the reason?

Thanks


what version of SQL server are you running the query on?

____________________________________________
Space, the final frontier? not any more...
All limits henceforth are self-imposed.
“libera tute vulgaris ex”
ipkunte
ipkunte
Valued Member
Valued Member (73 reputation)Valued Member (73 reputation)Valued Member (73 reputation)Valued Member (73 reputation)Valued Member (73 reputation)Valued Member (73 reputation)Valued Member (73 reputation)Valued Member (73 reputation)

Group: General Forum Members
Points: 73 Visits: 5
I executed the script on SQL Server 2005.
wiki 82367
wiki 82367
Valued Member
Valued Member (68 reputation)Valued Member (68 reputation)Valued Member (68 reputation)Valued Member (68 reputation)Valued Member (68 reputation)Valued Member (68 reputation)Valued Member (68 reputation)Valued Member (68 reputation)

Group: General Forum Members
Points: 68 Visits: 12
What a badly-worded question - it was not clear whether the question was about the contents of @tab or TestTable Crazy
Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum








































































































































































SQLServerCentral


Search