我想使用触发器将数据从 table 复制到另一个而不重复

i want copy data from table to another without duplicate using triggers

我有两个table 在 table 中,它每时每刻都添加行取决于用户插入 在 table 第二行中,我想复制的每一行都已添加到 table 行中,但具有特定条件 table 二号还有一些额外的列,我稍后需要它们 我想通过触发器来做到这一点,但我不知道该怎么做

我已经尝试过存储过程但不是自动的

INSERT INTO ax.RETAILTRANSACTIONSALESTRANS2
(
    [BARCODE]
    , [CREATEDDATETIME]
 ,[Name]
    , [ITEMID]
    , [NETAMOUNTINCLTAX]
    , [QTY]
    , [STAFFID]
    , [TERMINALID]
    , [TRANSDATE]
 ,[PERIODICPERCENTAGEDISCOUNT]
 ,[ReceiptID]
)
SELECT ab.[BARCODE]
    , ab.[CREATEDDATETIME]
 ,[ax].[ECORESPRODUCTTRANSLATION].[NAME]
    , ab.[ITEMID]
    , ab.[PRICE]
    , ab.[QTY]
    , ab.[STAFFID]
    , ab.[TERMINALID]
    , ab.[TRANSDATE]
 , ab.[PERIODICPERCENTAGEDISCOUNT]
 ,ab.RECEIPTID
FROM ax.RetailTransactionSalesTrans ab
inner join [ax].[INVENTTABLE] on ab.[ITEMID] =[ax].[INVENTTABLE].[ITEMID]
inner join [ax].[ECORESPRODUCTTRANSLATION] on [ax].[INVENTTABLE].PRODUCT =[ax].[ECORESPRODUCTTRANSLATION].[PRODUCT]
LEFT JOIN ax.RETAILTRANSACTIONSALESTRANS2 a ON 
a.[BARCODE] = ab.[BARCODE]
    AND a.[CREATEDDATETIME] = ab.[CREATEDDATETIME]
    AND a.[ITEMID] = ab.[ITEMID] 
    AND a.[NETAMOUNTINCLTAX] = ab.[PRICE]
    AND a.[QTY] = ab.[QTY] 
    AND a.[STAFFID] = ab.[STAFFID] 
    AND a.[TERMINALID] = ab.[TERMINALID] 
    AND a.[TRANSDATE] = ab.[TRANSDATE]
 AND a.[PERIODICPERCENTAGEDISCOUNT]=ab.[PERIODICPERCENTAGEDISCOUNT]
 and a.Process=null and a.Checked=null and a.[Select]=null
 where ab.[QTY]>0 and ab.[RECEIPTID]!='' and ab.[TRANSDATE] >= DATEADD(day, @daycount*-1, GetDate())
 and NOT EXISTS(select * from ax.RETAILTRANSACTIONSALESTRANS2 where [CREATEDDATETIME] = ab.[CREATEDDATETIME])

我想将其转换为触发器,但我不知道该怎么做

注意:@daycount 我从另一个 table 获取它,但我通过我的程序传递它

您可以使用下面的内容并编辑所需的列,想法是 FROM Inserted 您可以 select 插入主 table 的所有行.

CREATE TRIGGER TRetailTransactionSalesTrans ON RetailTransactionSalesTrans
FOR INSERT
AS
BEGIN
    INSERT INTO RETAILTRANSACTIONSALESTRANS2
    SELECT [BARCODE]
        ,[CREATEDDATETIME]
        ,[Name]
        ,[ITEMID]
        ,[NETAMOUNTINCLTAX]
        ,[QTY]
        ,[STAFFID]
        ,[TERMINALID]
        ,[TRANSDATE]
        ,[PERIODICPERCENTAGEDISCOUNT]
        ,[ReceiptID]
    FROM Inserted;
END