sQLserver T-SQL 事务的用法

BEGIN TRANSACTION--开始事务
DECLARE @errorSun int=0 --定义错误计数器
DECLARE @ErrorMessage NVARCHAR(4000)=‘‘;
--DECLARE @Remark NVARCHAR(4000)=‘‘;--备注
BEGIN TRY
 
Begin
 
PRINT (‘此处是代码的正文 www.lesg.cn / https://www.lesg.cn/netdaima/2016-55.html ‘   );
 
Eend
 
END TRY
BEGIN CATCH
SELECT
@errorSun=-1,
@ErrorMessage= ERROR_MESSAGE();
END CATCH
IF (@errorSun=-1)
BEGIN
set @ErrorMessage=‘(有错误，已回滚)‘+@ErrorMessage;
select @errorSun as Resualt,@ErrorMessage as Msg
ROLLBACK TRANSACTION--事务回滚语句
END
ELSE
BEGIN
COMMIT TRANSACTION--事务提交语句
 
END