Question

我编写了一个UPDATE触发器来查找Test.dbo.receiving_podio_dump表中的更改，然后执行以下两种不同的方案之一：

如果存在receiving_id和现有sku_no匹配且这是Test.dbo.receiving_detail表中该组合的更新，则相应的行会更新，或者

如果存在receiving_id但新sku_no项，则需要在Test.dbo.receiving_detail表中添加/插入新行。

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这是我的触发器：

CREATE TRIGGER trigger_receiving_detail_sku1_update
ON [Test].[dbo].[receiving_podio_dump]
FOR UPDATE
AS 
BEGIN
    --UPDATES DATA IN THE ROW FOR THAT RECEIVING LOG/SKU NO COMBO IF IT ALREADY EXISTS--
    IF (SELECT ISNULL(COUNT(*), 0) 
        FROM inserted 
        LEFT JOIN dbo.receiving_detail AS rec ON (inserted.receiving_id = rec.receiving_id AND '001' = rec.sku_no)) <> 0
    BEGIN
        UPDATE [dbo].[receiving_detail]
        SET receiving_assigned_id = inserted.receiving_assigned_id, 
            sku_id = sku1_id, sku = sku1, sku_lot = sku1_lot, 
            sku_whloc = sku1_whloc, sku_weight_of_unit = sku1_weight_of_unit, 
            sku_unit_of_weight_type = sku1_unit_of_weight_type, 
            sku_quantity_of_units = sku1_quantity_of_units, 
            sku_unit_of_measure = sku1_unit_of_measure, 
            sku_temperature = sku1_temperature
        FROM inserted
        WHERE ([dbo].[receiving_detail].receiving_id = inserted.receiving_id 
          AND [dbo].[receiving_detail].sku_no = '001')
    END

    --INSERTS A ROW FOR A NEW SKU NO FOR AN EXISTING RECEIVING LOG NUMBER--
    IF (SELECT ISNULL(COUNT(*), 0) 
        FROM inserted 
        LEFT JOIN dbo.receiving_detail AS rec ON (inserted.receiving_id = rec.receiving_id AND '001' = rec.sku_no)) = 0
    BEGIN
        INSERT INTO [dbo].[receiving_detail] (receiving_id, receiving_assigned_id, sku_id, sku_no, sku, sku_lot, sku_whloc, sku_weight_of_unit, sku_unit_of_weight_type, sku_quantity_of_units, sku_unit_of_measure, sku_temperature)
            SELECT 
                inserted.receiving_id, inserted.receiving_assigned_id, sku1_id, 
                '001', sku1, sku1_lot, sku1_whloc, sku1_weight_of_unit, 
                sku1_unit_of_weight_type, sku1_quantity_of_units, 
                sku1_unit_of_measure, sku1_temperature
            FROM 
                inserted
            WHERE 
                sku1 IS NOT NULL
    END
END
GO

触发器的第一部分正在运行，如果Test.dbo.receiving_detail表中有更新，则会在Test.dbo.receiving_podio_dump表上更新产品数量。

但是，如果添加了一个全新的SKU，则不会在我的Test.dbo.receiving_detail表中插入新行。

我不知道要改变什么，我尝试了几件事，欢迎任何建议并表示赞赏。谢谢！

PS：接收日志共有24个可能被添加或更新的SKU项目。我只包含了第一个触发器，但它们都遵循这种模式。

Answer 1

我删除了两个IF语句，并在UPDATE和INSERT语句中添加了这些条件，以支持大规模更新的情况，两个条件都为真。

CREATE TRIGGER trigger_receiving_detail_sku1_update
ON [Test].[dbo].[receiving_podio_dump]
FOR UPDATE
AS 
BEGIN
    --UPDATES DATA IN THE ROW FOR THAT RECEIVING LOG/SKU NO COMBO IF IT ALREADY EXISTS--
    UPDATE rec
    SET receiving_assigned_id = i.receiving_assigned_id, 
            sku_id = sku1_id, sku = sku1, sku_lot = sku1_lot, 
            sku_whloc = sku1_whloc, sku_weight_of_unit = sku1_weight_of_unit, 
            sku_unit_of_weight_type = sku1_unit_of_weight_type, 
            sku_quantity_of_units = sku1_quantity_of_units, 
            sku_unit_of_measure = sku1_unit_of_measure, 
            sku_temperature = sku1_temperature
    FROM inserted i
        INNER JOIN [dbo].[receiving_detail] rec ON rec.receiving_id = i.receiving_id
    WHERE (rec.sku_no = '001')

    --INSERTS A ROW FOR A NEW SKU NO FOR AN EXISTING RECEIVING LOG NUMBER--
    INSERT INTO [dbo].[receiving_detail] (receiving_id, receiving_assigned_id, sku_id, sku_no, sku, sku_lot, sku_whloc, sku_weight_of_unit, sku_unit_of_weight_type, sku_quantity_of_units, sku_unit_of_measure, sku_temperature)
    SELECT 
        i.receiving_id, i.receiving_assigned_id, sku1_id, 
        '001', sku1, sku1_lot, sku1_whloc, sku1_weight_of_unit, 
        sku1_unit_of_weight_type, sku1_quantity_of_units, 
        sku1_unit_of_measure, sku1_temperature
    FROM 
        inserted i
    WHERE sku1 IS NOT NULL
        AND NOT EXISTS (SELECT * FROM [dbo].[receiving_detail] rec WHERE rec.receiving_id = i.receiving_id AND rec.sku_no = '001')
END


GO

SQL Server Update触发器无法正常工作

1 个答案: