Database reference - AdventureWorks

AdventureWorks -  triggers -  [Sales].[uSalesOrderHeader]

Description

AFTER UPDATE trigger that updates the RevisionNumber and ModifiedDate columns in the SalesOrderHeader table.Updates the SalesYTD column in the SalesPerson and SalesTerritory tables. 

Trigger properties

namevalue
parentSalesOrderHeader
typeAfter Update   
is first insertfalse
is last insertfalse
is first updatefalse
is last updatefalse
is last deletefalse
is first deletefalse
is disabledfalse
is not for replicationtrue

Dependency graph

uspLogErroruspPrintErrorSalesOrderHeaderSalesPersonSalesTerritoryuSalesOrderHeader

Objects that [Sales].[uSalesOrderHeader] depends on

nameobject typelevel
uspLogErrorstored procedure1
uspPrintErrorstored procedure2
ErrorLogtable2
SalesOrderHeadertable1
OrderNumbertype2
Flagtype2
AccountNumbertype2
SalesPersontable1
SalesTerritorytable1
Nametype2

Code

CREATE TRIGGER [Sales].[uSalesOrderHeader] ON [Sales].[SalesOrderHeader] 
AFTER UPDATE NOT FOR REPLICATION 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 [Sales].[SalesOrderHeader]
            SET [Sales].[SalesOrderHeader].[RevisionNumber] = 
                [Sales].[SalesOrderHeader].[RevisionNumber] + 1
            WHERE [Sales].[SalesOrderHeader].[SalesOrderID] IN 
                (SELECT inserted.[SalesOrderID] FROM inserted);
        END;

        -- Update the SalesPerson SalesYTD when SubTotal is updated
        IF UPDATE([SubTotal])
        BEGIN
            DECLARE @StartDate datetime,
                    @EndDate datetime

            SET @StartDate = [dbo].[ufnGetAccountingStartDate]();
            SET @EndDate = [dbo].[ufnGetAccountingEndDate]();

            UPDATE [Sales].[SalesPerson]
            SET [Sales].[SalesPerson].[SalesYTD] = 
                (SELECT SUM([Sales].[SalesOrderHeader].[SubTotal])
                FROM [Sales].[SalesOrderHeader] 
                WHERE [Sales].[SalesPerson].[SalesPersonID] = [Sales].[SalesOrderHeader].[SalesPersonID]
                    AND ([Sales].[SalesOrderHeader].[Status] = 5) -- Shipped
                    AND [Sales].[SalesOrderHeader].[OrderDate] BETWEEN @StartDate AND @EndDate)
            WHERE [Sales].[SalesPerson].[SalesPersonID] 
                IN (SELECT DISTINCT inserted.[SalesPersonID] FROM inserted 
                    WHERE inserted.[OrderDate] BETWEEN @StartDate AND @EndDate);

            -- Update the SalesTerritory SalesYTD when SubTotal is updated
            UPDATE [Sales].[SalesTerritory]
            SET [Sales].[SalesTerritory].[SalesYTD] = 
                (SELECT SUM([Sales].[SalesOrderHeader].[SubTotal])
                FROM [Sales].[SalesOrderHeader] 
                WHERE [Sales].[SalesTerritory].[TerritoryID] = [Sales].[SalesOrderHeader].[TerritoryID]
                    AND ([Sales].[SalesOrderHeader].[Status] = 5) -- Shipped
                    AND [Sales].[SalesOrderHeader].[OrderDate] BETWEEN @StartDate AND @EndDate)
            WHERE [Sales].[SalesTerritory].[TerritoryID] 
                IN (SELECT DISTINCT inserted.[TerritoryID] FROM inserted 
                    WHERE inserted.[OrderDate] BETWEEN @StartDate AND @EndDate);
        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;

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