How to create a stored procedure that contains all 3 AFTER Triggers Update/Insert/Delete ?

Question

Hi guys, I'm trying to create a Stored procedure that will automatically add all 3 After triggers when executed on any given database, can someone please explain and give an example on how do I go about doing this ? I'd also like it to raise any errors
that may come across, thanks in advance.

Answer 1

Lets start with the question why do you need the triggers at all. Since SQL Server 2005 we can use an OUTPUT clause.
This code can be re-written in SQL Server 2005 using the OUTPUT clause like below:
create table itest ( i int identity not null primary key, j int not null unique )
create table #new ( i int not null, j int not null)
insert into itest (j)
output inserted.i, inserted.j into #new
select o.object_id from sys.objects as o
select * from #new
drop table #new, itest;
go
Now from this example, you can see the integration of OUTPUT clause with existing DML syntax.
Another common scenario is auditing of data in a table using triggers. In this case, the trigger uses information from the inserted and updated tables to add rows into the audit tables. The example below shows code that uses OUTPUT clause in UPDATE and DELETE
statements to insert rows into an audit table.
create table t ( i int not null );
create table t_audit ( old_i int not null, new_i int null );
insert into t (i) values( 1 );
insert into t (i) values( 2 );
update t
   set i  = i + 1
output deleted.i, inserted.i into t_audit
 where i = 1;
delete from t
output deleted.i, NULL into t_audit
 where i = 2;
select * from t;
select * from t_audit;
drop table t, t_audit;
go
Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
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