更新我的触发器以进行多行插入、更新和删除？

Question

我正在为在主表上执行的任何操作创建一个新触发器，我需要使用用于插入、更新和删除的触发器来更新我的本地表。但是现在我在多行插入或更新过程中遇到了问题。

我创建了触发器，但它不能正常用于多行插入和更新。

CREATE TRIGGER [dbo].[TRG_pspartmas] ON [dbo].[ps_partmas]
AFTER INSERT
    ,UPDATE
    ,DELETE
AS
BEGIN
    DECLARE @cmp_id VARCHAR(10)
    DECLARE @sl_type VARCHAR(10)
    DECLARE @sl_code VARCHAR(20)
    DECLARE @sl_desc VARCHAR(200)
    DECLARE @region_code VARCHAR(10)
    DECLARE @tranYN VARCHAR(10)
    DECLARE @IT_NO VARCHAR(50)
------------------------------------------------------------------------------Fetching recored from inserted
-- SELECT @cmp_id=cmp_id,@sl_type=cl_supp_code,@sl_code=part_code,@sl_desc=part_nm,@region_code=region_code,@tranYN=Stop_Order,@it_NO=IT_no
-- FROM inserted
--------------------------------------------------------------------------------if recored were deletd
SELECT @cmp_id = rtrim(ltrim(cmp_id))
    ,@sl_code = rtrim(ltrim(part_code))
    ,@sl_desc = rtrim(ltrim(part_nm)) --,@tranYN=rtrim(ltrim(Stop_Order))
FROM deleted

IF EXISTS (
        SELECT *
        FROM view_sl_code1
        WHERE cmp_id = rtrim(ltrim(@cmp_id))
            AND sl_code = rtrim(ltrim(@sl_code))
            AND sl_type = @sl_type
        )
BEGIN
    BEGIN
        DELETE
        FROM view_sl_code1
        WHERE cmp_id = rtrim(ltrim(@cmp_id))
            AND sl_code = rtrim(ltrim(@sl_code))
            AND sl_type = rtrim(ltrim(@sl_type))
    END
END

SELECT @cmp_id = cmp_id
    ,@sl_type = cl_supp_code
    ,@sl_code = part_code
    ,@sl_desc = part_nm
    ,@region_code = region_code
    ,@tranYN = Stop_Order
    ,@it_NO = IT_no
FROM inserted

--@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IF EXISTS (
        SELECT *
        FROM view_sl_code1
        WHERE cmp_id = rtrim(ltrim(@cmp_id))
            AND sl_code = rtrim(ltrim(@sl_code))
            AND sl_type = @sl_type
        )
BEGIN
    UPDATE view_sl_code1
    SET sl_desc = rtrim(ltrim(@sl_desc))
        ,tranYN = rtrim(ltrim(@tranYN))
        ,actions = 'partmas_up'
        ,date_update = GETDATE()
    WHERE cmp_id = rtrim(ltrim(@cmp_id))
        AND sl_code = rtrim(ltrim(@sl_code))
END

------------------------------------------------------------------------------inserting new recored
IF NOT EXISTS (
        SELECT *
        FROM view_sl_code1
        WHERE cmp_id = rtrim(ltrim(@cmp_id))
            AND sl_code = rtrim(ltrim(@sl_code))
            AND sl_type = @sl_type
        )
BEGIN
    INSERT INTO view_sl_code1 (
        cmp_id
        ,sl_type
        ,sl_code
        ,sl_desc
        ,region_code
        ,tranYN
        ,IT_NO
        ,actions
        ,date_update
        )
    SELECT rtrim(ltrim(cmp_id))
        ,rtrim(ltrim(cl_supp_code)) AS sl_type
        ,rtrim(ltrim(part_code)) AS sl_code
        ,rtrim(ltrim(part_nm)) AS sl_desc
        ,rtrim(ltrim(region_code))
        ,CASE 
            WHEN Stop_Order = 'Y'
                THEN 'N'
            ELSE 'Y'
            END AS tranYN
        ,IT_NO
        ,'partmas_in'
        ,getdate()
    FROM dbo.ps_partmas
    WHERE cmp_id = @cmp_id
        AND part_code = @sl_code
        AND cl_supp_code = @sl_type
END
--end
PRINT 'Trigger is activated'
END

我需要在我的本地表中捕获所有插入和更新的值。

你能推荐一下吗？

Answer 1

您需要简单地加入到插入和删除的表中。

这是一个例子。为了便于阅读，我已经删除了所有 ltrim/rtrim，如果需要，请重新添加。

delete view_sl_code1
from view_sl_code1
join deleted 
    on deleted.cmp_id=view_sl_code1.cmp_id
    and deleted.sl_code=view_sl_code1.sl_code
    and deleted.sl_desc=view_sl_code1.sl_desc

update view_sl_code1
    SET sl_desc = inserted.sl_desc
    ,tranYN = inserted.tranYN
    ,actions = 'partmas_up'
    ,date_update = GETDATE()
from view_sl_code1
join inserted 
    on inserted.cmp_id = view_sl_code1.cmp_id
    AND inserted.sl_code = view_sl_code1.sl_code

insert view_sl_code1 (
        cmp_id
        ,sl_type
        ,sl_code
        ,sl_desc
        ,region_code
        ,tranYN
        ,IT_NO
        ,actions
        ,date_update
        )
select cmp_id,
    cl_supp_code AS sl_type
    ,part_code AS sl_code
    ,part_nm AS sl_desc
    ,region_code
    ,CASE 
        WHEN Stop_Order = 'Y'
            THEN 'N'
        ELSE 'Y'
        END AS tranYN
    ,IT_NO
    ,'partmas_in'
    ,getdate()
FROM dbo.ps_partmas
join inserted 
    on inserted.cmp_id = ps_partmas.cmp_id
    AND inserted.part_code = ps_partmas.sl_code
    AND inserted.cl_supp_code = ps_partmas.sl_type
where not exists(
    SELECT *
    FROM view_sl_code1
    join inserted
        on inserted.cmp_id = view_sl_code1.cmp_id
        AND inserted.sl_code = view_sl_code1.sl_code
        AND inserted.sl_type = view_sl_code1.sl_type        
)