Trigger and RowsAffected


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Chan
Chan
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Hi,

How to prevent anything inside trigger affect value SqlDataReader.RecordsAffected?



Thank you
Chan
Chan
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Hi,

I tried to SET NOCOUNT ON but doesn't work.



Any ideas?
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If you want the number of affected records to be returned by the update sproc, but not the trigger, then call SET NOCOUNT ON at the top of the trigger and SET NOCOUNT OFF at the bottom of the trigger and call SET NOCOUNT OFF at the top of your UPDATE sproc and SET NOCOUNT ON at the bottom of the update sproc.
Chan
Chan
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Hi,

I am using dynamic SQL. I have trigger as below which will call another stored procedure. If I disable this trigger, RecordsAffected will be correct value. Any ideas?



CREATE TRIGGER [dbo].[T_PurchaseInvoices_UpdateQty]

ON [dbo].[PurchaseInvoices]

FOR UPDATE

AS

BEGIN

   -- SET NOCOUNT ON added to prevent extra result sets from

   -- interfering with SELECT statements.

   SET NOCOUNT ON;



-- Insert statements for trigger here



   IF UPDATE(LocationID) OR EXISTS(SELECT * FROM deleted)

      BEGIN

         SELECT * INTO #inserted_tmp FROM inserted

         SELECT * INTO #deleted_tmp FROM deleted

      

         EXEC spHeaderUpdateQty 'PurchaseInvoiceDetails', 'PInvoiceID', default, '+', 'InStock'

      END



   SET NOCOUNT OFF



END



CREATE PROCEDURE [dbo].[spHeaderUpdateQty]

@tablename VARCHAR(100),

@primarykey VARCHAR(100),

   @locationfield VARCHAR(100) = 'LocationID',

@addminus CHAR(1),

   @uom VARCHAR(20) = ''

AS



BEGIN

DECLARE

@row_count INT,

@error_number INT,

@error_message VARCHAR(255),

@sql VARCHAR(4000)



SET NOCOUNT ON;



SET @sql = 'SELECT i.ItemID

            FROM ' + @tablename + ' p INNER JOIN Items i ON p.ItemID = i.ItemID

            INNER JOIN #inserted_tmp t ON p.' + @primarykey + ' = t.' + @primarykey +

            ' WHERE KeepStock = 1'



   EXEC (@sql)



   SELECT @row_count = @@rowcount



IF (@row_count > 0)

BEGIN

         SET @sql = 'UPDATE [dbo].[ItemLocations]

                  SET Qty = CASE p.Draft WHEN 1 THEN i.Qty ELSE i.Qty ' + @addminus + '

                  ISNULL(dbo.GetQtyByUOM(t.UOMID, s.' + @uom + 'UOMID, t.Qty), t.Qty) END

                  FROM [dbo].[ItemLocations] i, [dbo].[' + @tablename + '] t, [#inserted_tmp] p,

                     [dbo].[Items] s

                  WHERE s.ItemID = t.ItemID AND s.KeepStock = 1 AND

                        p.' + @primarykey + ' = t.' + @primarykey +

                        ' AND i.ItemID = t.ItemID AND i.LocationID = p.' + @locationfield



         EXEC (@sql)



         SELECT @row_count = @@rowcount

         IF @row_count = 0

            BEGIN

               SELECT @error_number=50001,

                   @error_message='No item qty is updated.'

                   GOTO error

            END

         ELSE

            PRINT 'Qty updated'

   END



   SET @sql = 'SELECT i.ItemID

            FROM ' + @tablename + ' p INNER JOIN Items i ON p.ItemID = i.ItemID

            INNER JOIN #deleted_tmp t ON p.' + @primarykey + ' = t.' + @primarykey +

            ' WHERE KeepStock = 1'



   EXEC (@sql)



   SELECT @row_count = @@rowcount



IF (@row_count > 0)

      BEGIN

         IF (@addminus = '+')

            BEGIN

               SET @addminus = '-'

            END

         ELSE

            BEGIN

               SET @addminus = '+'

            END



         SET @sql = 'UPDATE [dbo].[ItemLocations]

                  SET Qty = CASE p.Draft WHEN 1 THEN i.Qty ELSE i.Qty ' + @addminus + '

                  ISNULL(dbo.GetQtyByUOM(t.UOMID, s.' + @uom + 'UOMID, t.Qty), t.Qty) END

                  FROM [dbo].[ItemLocations] i, [dbo].[' + @tablename + '] t, [#deleted_tmp] p,

                     [dbo].[Items] s

                  WHERE s.ItemID = t.ItemID AND s.KeepStock = 1 AND

                        p.' + @primarykey + ' = t.' + @primarykey +

                        ' AND i.ItemID = t.ItemID AND i.LocationID = p.' + @locationfield



         EXEC (@sql)



         SELECT @row_count = @@rowcount

         IF @row_count = 0

            BEGIN

               SELECT @error_number=50001,

                   @error_message='No item qty is reverted.'

                   GOTO error

            END

         ELSE

            PRINT N'Qty reverted.'

      END



   SET NOCOUNT OFF



RETURN



/* Error Handling */

error:

RAISERROR @error_number @error_message

ROLLBACK TRANSACTION



SET NOCOUNT OFF



END


GO

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