仅提交在TRANSACTION中进行的可能ROLLBACK的特定更改

Question

这是对原始问题的重要编辑,使其更简洁,涵盖现有答案提出的要点......

是否可以在单个事务中对多个表进行多次更改,并仅回滚一些更改？

在下面的TSQL中,我不希望回滚"myLogSP"所做的任何更改.但是,如果需要,各种myBusinessSP所做的所有更改都应该回滚.

BEGIN TRANSACTION  

    EXEC myLogSP

    EXEC @err = myBusinessSPa
    IF (@err <> 0) BEGIN ROLLBACK TRANSACTION RETURN -1 END

    EXEC myLogSP

    EXEC @err = myBusinessSPb
    IF (@err <> 0) BEGIN ROLLBACK TRANSACTION RETURN -1 END

    EXEC myLogSP

    EXEC @err = myBusinessSPc
    IF (@err <> 0) BEGIN ROLLBACK TRANSACTION RETURN -1 END

    EXEC myLogSP

COMMIT TRANSACTION
RETURN 0

顺序很重要,myLogSPs必须在myBusinessSPs之间和之后发生(myLogSPs接受myBusinessSPs所做的更改)

同样重要的是,所有myBusinessSP都发生在一个事务中以维护数据库完整性,并允许所有更改在必要时回滚.

就好像我希望myLogSP的行为就好像它们不是交易的一部分.这只是一个不方便的事实,它们碰巧在一个内部(由于需要在myBusinessSP之间调用.)

编辑:

最终答案是"不",唯一的选择是重新设计代码.要么使用表变量进行日志记录(因为变量不会被回滚),要么将业务逻辑重新设计为不需要事务...

Answer 1

使用SAVEPOINTs,例如

BEGIN TRANSACTION  

    EXEC myLogSP

    SAVE TRANSACTION savepointA
    EXEC @err = myBusinessSPa
    IF (@err <> 0) BEGIN
        ROLLBACK TRANSACTION savepointA
        COMMIT
        RETURN -1
    END

    EXEC myLogSP

    SAVE TRANSACTION savepointB
    EXEC @err = myBusinessSPb
    IF (@err <> 0) BEGIN
        ROLLBACK TRANSACTION savepointB
        COMMIT
        RETURN -1
    END

    EXEC myLogSP

    SAVE TRANSACTION savepointC
    EXEC @err = myBusinessSPc
    IF (@err <> 0) BEGIN
        ROLLBACK TRANSACTION savepointC
        COMMIT
        RETURN -1
    END

    EXEC myLogSP

COMMIT TRANSACTION

编辑

基于到目前为止提供的信息(以及我对它的理解),您似乎必须重新设计日志SP,要么使用变量,要么使用文件,或允许它们在"事后"之后运行如下:

BEGIN TRANSACTION  

    SAVE TRANSACTION savepointA
    EXEC @err = myBusinessSPa
    IF (@err <> 0) BEGIN
        ROLLBACK TRANSACTION savepointA
        EXEC myLogSPA -- the call to myBusinessSPa was attempted/failed
        COMMIT
        RETURN -1
    END

    SAVE TRANSACTION savepointB
    EXEC @err = myBusinessSPb
    IF (@err <> 0) BEGIN
        ROLLBACK TRANSACTION savepointB
        EXEC myLogSPA -- the call to myBusinessSPa originally succeeded
        EXEC myLogSPB -- the call to myBusinessSPb was attempted/failed
        COMMIT
        RETURN -1
    END

    SAVE TRANSACTION savepointC
    EXEC @err = myBusinessSPc
    IF (@err <> 0) BEGIN
        ROLLBACK TRANSACTION savepointC
        EXEC myLogSPA -- the call to myBusinessSPa originally succeeded
        EXEC myLogSPB -- the call to myBusinessSPb originally succeeded
        EXEC myLogSPC -- the call to myBusinessSPc was attempted/failed
        COMMIT
        RETURN -1
    END

    EXEC myLogSPA -- the call to myBusinessSPa succeeded
    EXEC myLogSPB -- the call to myBusinessSPb succeeded
    EXEC myLogSPC -- the call to myBusinessSPc succeeded

COMMIT TRANSACTION