try可以从头开始包到结束,防止入参的时候就会报错。
事务tran则从业务的地方才开始进行。防止过多的查询等操作。造成事务繁多，从而死锁
CREATE PROCEDURE ProcedureName(@xml xml)
AS
BEGIN
SET NOCOUNT ON;
BEGIN TRY---------------------开始捕捉异常
@CS1 INT
Select @CS1= @xml.value('(//CS1)[1]','INT')
BEIN TRAN------------------开始事务
UPDATE A SET A.names = B.names FROM 表1 AS A INNER JOIN 表2 AS B ON A.id = B.id
UPDATE A SET A.names = B.names FROM 表1 AS A INNER JOIN 表2 AS B ON A.TEST = B.TEST
COMMIT TRAN -------提交事务
END TRY-----------结束捕捉异常
BEGIN CATCH------------有异常被捕获
IF @@TRANCOUNT > 0---------------判断有没有事务
BEGIN
ROLLBACK TRAN----------回滚事务
END
EXEC YourLogErrorProcedure-----------执⾏存储过程将错误信息记录在表当中
END CATCH--------结束异常处理
END
