Properties

Owner:	Purchasing
Table/View:	Purchasing.PurchaseOrderHeader
Creation Date:	04/26/2006
Modification Date:	04/26/2006
Encrypted:
Description:	AFTER UPDATE trigger that updates the RevisionNumber and ModifiedDate columns in the PurchaseOrderHeader table.

Creation options

QUOTED_IDENTIFIER:
ANSI_NULLS:

Type

Instead of:
Insert:
Update:
Delete:

Objects that [Purchasing].[uPurchaseOrderHeader] depends on

	Object Name	Owner	Object Type	Dep Level
	AccountNumber	dbo	User Defined type	1
	Flag	dbo	User Defined type	1
	Name	dbo	User Defined type	1
	NameStyle	dbo	User Defined type	1
	Phone	dbo	User Defined type	1
	Contact	Person	Table	2
	ErrorLog	dbo	Table	2
	ShipMethod	Purchasing	Table	2
	Vendor	Purchasing	Table	2
	uspPrintError	dbo	Procedure	2
	Employee	HumanResources	Table	3
	uspLogError	dbo	Procedure	3
	PurchaseOrderHeader	Purchasing	Table	4

Total: 13 object(s)

SQL

SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO

CREATE TRIGGER [Purchasing].[uPurchaseOrderHeader] ON [Purchasing].[PurchaseOrderHeader]
AFTER UPDATE AS
BEGIN
    DECLARE @Count int;

    SET @Count = @@ROWCOUNT;
    IF @Count = 0
        RETURN;

    SET NOCOUNT ON;

    BEGIN TRY
        -- Update RevisionNumber for modification of any field EXCEPT the Status.
        IF NOT UPDATE([Status])
        BEGIN
            UPDATE [Purchasing].[PurchaseOrderHeader]
            SET [Purchasing].[PurchaseOrderHeader].[RevisionNumber] =
                [Purchasing].[PurchaseOrderHeader].[RevisionNumber] + 1
            WHERE [Purchasing].[PurchaseOrderHeader].[PurchaseOrderID] IN
                (SELECT inserted.[PurchaseOrderID] FROM inserted);
        END;
    END TRY
    BEGIN CATCH
        EXECUTE [dbo].[uspPrintError];

        -- Rollback any active or uncommittable transactions before
        -- inserting information in the ErrorLog
        IF @@TRANCOUNT > 0
        BEGIN
            ROLLBACK TRANSACTION;
        END

        EXECUTE [dbo].[uspLogError];
    END CATCH;
END;

GO
SET QUOTED_IDENTIFIER OFF
GO

GO
SET ANSI_NULLS OFF
GO

See Also

List of table/view triggers
Table [Purchasing.PurchaseOrderHeader]