当SQL Server中的错误停止执行时？

Question

如果我exec的这批：

begin transaction 
    PRINT 'start' 
    PRINT 1/0 
    PRINT 'continue' 
    drop table dbo.tblPrueba 
    select * from dbo.tblPrueba 
    PRINT 'finish' 
rollback transaction 

的输出中是这样的：

start 
Msg 8134, Level 16, State 1, Line 3 
Divide by zero error encountered. 
continue 
Msg 208, Level 16, State 1, Line 6 
Invalid object name 'dbo.tblPrueba'. 

我迫使两个错误： - 第一个：PRINT 1/0（即生成该错误：

Msg 8134, Level 16, State 1, Line 3 
Divide by zero error encountered. 

）并继续执行批处理

- 第二个：

drop table dbo.tblPrueba 
select * from dbo.tblPrueba 

生成此错误：

Msg 208, Level 16, State 1, Line 6 
Invalid object name 'dbo.tblPrueba'. 

并停止批

的执行它们之间有什么不同？我在哪里可以学习那些停止执行和那些不会执行的操作？

非常感谢！

Answer 1

由于第一个错误是零错误划分，this behavior depends on your ARITHABORT, ARITHIGNORE and ANSI_WARNINGS settings.

从文章：

These three SET commands give you very fine-grained control for a very small set of errors. When a division by zero or an overflow occurs, there are no less four choices.

• No action at all, result is NULL – when ARITHIGNORE is ON.
• Warning message, result is NULL – when all are OFF.
• Statement-termination – when ANSI_WARNINGS is ON.
• Batch-abortion – when ARITHABORT is ON and ANSI_WARNINGS is OFF.

至于哪些错误停止执行，哪些没有，请refer to the same article。

Answer 2

，以确保所有的错误都正确处理最简单的方法是使用try/catch语句

做不到这一点，不同的错误可以声明，范围或设置而定，如ARITHxx，ANSI_WARNINGS和XACT_ABORT批则中止。这表现并讨论在"Error Handling in SQL 2000"

你可以看到不同的（无SET选项改变）本

CREATE TABLE dbo.tblPrueba (gbn int); 
GO 

BEGIN TRY 

    begin transaction 
     PRINT 'start' 
     PRINT 1/0 
     PRINT 'continue' 
     drop table dbo.tblPrueba 
     select * from dbo.tblPrueba 
     PRINT 'finish' 
    rollback transaction 

END TRY 
BEGIN CATCH 
    SELECT ERROR_MESSAGE(); 
    IF XACT_STATE() <> 0 rollback transaction 
END CATCH 

如果我跑这两次，我得到这个，因为DROP永远不会执行

Msg 2714, Level 16, State 6, Line 1
There is already an object named 'tblPrueba' in the database.

Answer 3

Where can I learn those that stop execution

您可以使用异常处理

---

Begin try 
    begin transaction 
    PRINT 'start' 
    PRINT 1/0 
    PRINT 'continue' 
    create table #t 
    ( 
     id int 
    ) 
    drop table #t 
    select * from #t 
    PRINT 'finish' 
    rollback transaction 
End Try 

Begin Catch 
    if(XACT_STATE() == 1) 
    Rollback Tran 
End Catch 

---

您可以使用Set XACT_ABORT ON像下面。

Set XACT_ABORT ON 
begin transaction 
    PRINT 'start' 
    PRINT 1/0 
    PRINT 'continue' 
    create table #t 
    ( 
     id int 
    ) 
    drop table #t 
    select * from #t 
    PRINT 'finish' 
rollback transaction