如何正确回滚事务

本文介绍了如何正确回滚事务的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 我有一个将应用于2个表的事务。表2有字段 '图像' 是唯一的。当第一次尝试执行以下代码时，它正确执行但在尝试再次重新执行时（显示回滚效果），table2中发生重复错误，并且事务已正确应用于table1并已提交table1承诺记录没有回滚。 我尝试过： 这是我的代码：I have a transaction that will be applied to 2 tables. Table 2 has field'image'that is unique. when trying to execute the following code in the first time, it is executed correctly but when trying to Re-execute it again (to show effect of rollback), a duplicate error occurred in table2 and the transaction was applied correctly to table1 and committed so the table1 committed record was not rolled back.What I have tried:Here is my code:DROP PROCEDURE IF EXISTS mprocedure;DELIMITER $$CREATE PROCEDURE mprocedure ()BEGINSTART TRANSACTION;INSERT INTO `mschema`.`table1`(`maxbudget`,`blocked`,`d_percentage`,`max discount`)VALUES('2250','0','.9','.99');if (@@error_count = 0 ) then INSERT INTO `mschema`.`table2` (`name`,`image`,`date`,`fKey_id`) values ('jhon','jfdd', '2018-01-01 00:00:00', LAST_INSERT_ID()); if (@@error_count = 0 ) then commit; else rollback; end if;else rollback;end if;commit;END;$$DELIMITER ;推荐答案DROP PROCEDURE IF EXISTS mprocedure;DELIMITER 这篇关于如何正确回滚事务的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！