TSQL: Try-Catch Transaction in Trigger

Question

I am trying to put a try-catch statement inside a trigger using Microsoft Server 2005.

BEGIN TRANSACTION
BEGIN TRY
    --Some More SQL
    COMMIT TRANSACTION         


        

Answer 1

Isn't the best way but it works. Start a new transaction and do the normal commit rollback and begin another transaction in the end for implicit transaction commit

http://msdn.microsoft.com/en-us/library/ms187844(v=SQL.90).aspx

Answer 2

This demo achieves many of the things asked above. Error messages become optional. The trick that makes it work is in a the nested dynamic execute.

    if object_id('toto')  is not  null drop table toto
    go
    create table toto (i int);
    go
    if object_id('toto2')  is not  null drop table toto2
    go
    create table toto2 (i int);
    go
    create Trigger trtoto
    ON toto
    Instead Of Insert
    as
    Begin
      BEGIN TRY
        set nocount  on
        insert into  toto  values(2)

        declare @sql nvarchar(max) =  'insert into toto2 values(3); select * from ThisTableDoesntexist'

        Exec sp_executeSql N'set xact_abort off; exec (@sql) ', N'@sql nvarchar(max)', @sql

      END TRY

      BEGIN CATCH
        PRINT  'Error on line ' + CAST(ERROR_LINE() AS VARCHAR(10))
        PRINT ERROR_MESSAGE()
      END CATCH
    End

GO
-- tests
set nocount on
insert into toto values (1)  -- is not inserted on purpose by  the trigger
select * from toto   -- other value inserted despite the error
select * from toto2  -- other value inserted in other table despite the error

Answer 3

Use SET XACT_ABORT OFF .When Transact-SQL statement encounter error ,it just raised the error message and the transaction continues processing. The following code is to create the trigger:

Create TRIGGER [dbo].tr_Ins_Table_Master ON [dbo].Table_Master
 AFTER INSERT
AS
BEGIN
set xact_abort off
BEGIN TRY
        --your SQL          
        INSERT INTO Table_Detail
        SELECT MasterID,Name FROM INSERTED

END TRY

BEGIN CATCH     
    select ERROR_MESSAGE()
END CATCH

END