sql proc触发异常处理回滚 针对proc嵌套proc很有用
begin begin try begin tran update table set col = '' where a = 1 IF @@Rowcount = 0--判断错误 BEGIN --ROLLBACK TRAN SET @vcResult = '添加失败' RAISERROR(@vcResult,16,1) END commit tran end try begin catch IF @@tranCount = 1 ROLLBACK TRAN ; --@@tranCount = 1 代表开启事物的个数,如果嵌套调用开启了两个事物,则在外部事物回滚 end catch end