Question

我正在尝试执行以下操作，但努力使语法正确以将插入的值传递给我的存储过程。

CREATE TRIGGER tInsertCall 
   ON cdr2
   FOR INSERT
AS 
BEGIN
    EXEC Track.dbo.InsertCall inserted.calldate, inserted.clid, 
               inserted.src, inserted.dst, inserted.dcontext, inserted.channel, 
               inserted.dstchannel, inserted.lastapp, inserted.lastdata, 
               inserted.duration, inserted.billsec, inserted.disposition, 
               inserted.uniqueid, inserted.amaflags, inserted.recordingpath,
               inserted.accountcode, inserted.userfield
END
GO

由于

Answer 1

你可以创建这样的东西：

CREATE TRIGGER dbo.tInsertCall ON dbo.cdr2
   FOR INSERT
AS 
BEGIN

    DECLARE @CallDate DATETIME;
    DECLARE @clid INT;
    .    --Add the other variables here
    .
    .
    DECLARE @userfield SOMEDATATYPE;

    SELECT TOP(1) @CallDate = INSERTED.calldate
        , @clid = INSERTED.clid
        ...    --Add the other variables here
        , @userfield = INSERTED.userfield
    FROM INSERTED;

    EXEC Track.dbo.InsertCall @CallDate, @clid, ... /*other variables here*/, @userfield;
END
GO

此触发器仅处理INSERTED虚拟表中的第1行，因为它在TOP(1)语句中有SELECT。

更好（可论证）这样做的方法是使用触发器迭代INSERTED中的所有行。类似的东西：

CREATE TRIGGER dbo.tInsertCall ON dbo.cdr2
   FOR INSERT
AS 
BEGIN

    DECLARE @CallDate DATETIME;
    DECLARE @clid INT;
    .   -- add the other variable declarations here
    .
    .
    DECLARE @userfield SOMEDATATYPE;

    -- use FAST_FORWARD and LOCAL to minimize locking etc
    DECLARE cur CURSOR FAST_FORWARD LOCAL FOR
    SELECT *
    FROM INSERTED;

    OPEN cur;

    --Get the first row from the INSERTED table
    FETCH NEXT FROM cur
    INTO @CallDate, @clid, ... /* other vars here */, @userfield;

    WHILE @@FETCH_STATUS=0
    BEGIN
        -- run the stored proc
        EXEC Track.dbo.InsertCall @CallDate, @clid, .../* other vars here */, @userfield;
        -- get the next row from INSERTED
        FETCH NEXT FROM cur
        INTO @CallDate, @clid, .../* other vars here */, @userfield;
    END

    CLOSE cur;
    DEALLOCATE cur;

END
GO

SQL Trigger使用插入的值来调用存储过程

1 个答案: