问题描述 timestamp类型字段DataCompareUtils.converType方法发现old value一直是.0 ;new value 一直是.xxx 导致Field not equals 通过debug级别日志看到 CREATE_TIME 精度不一样上述问题导致回滚失败一直重试一直失败如何复制回顾 1、A 服务调B服务；B使用oracle数据源； 2、B服务正常提交事务；...

文章 2023-06-05 来自：开发者社区

【数据库设计与实现】第二章：数据前像与回滚

数据前像与回滚设计原则事务中重要的一点是事务的原子性，即事务中的所有操作要么全部生效，要么全部都不生效。数据的前像和回滚是保证事务原子性的重要手段。修改记录前，先将记录的前像（即修改前的记录）保存下来，当事务需要回滚时，将记录恢复到前像，从而保证事务的原子性。从当前的实现情况来看，前像保存主要有两种技术手段：本地更新方案：直接在原记录上进行更新，把被更新列的前像保存到独立...

文章 2023-05-07 来自：开发者社区

背景同组的一位负责B端Web项目的同事将版本发布到生产环境之后。收到了用户很多投诉，诸如功能很难用、操作流水很繁琐。产品经理进行分析检讨，判断是因为新旧版本系统用户使用习惯差异太大，且没有兼容原有功能。经过短暂的商议后决定回退版本。因为是web应用所有直接将服务端的版本包回退到上次发版即可。但是在回退的时候需要考虑一个问题就是当初发版的时候可是提了一些DDL和DML的SQL脚本，比如升级的时候....

问答 2023-03-20 来自：开发者社区

大家好！请教一个问题，tcc模式事务下调用的子服务数据库不回滚，会是什么原因导致全局事务不起作用？

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更新时间 2025-03-15 13:50:08

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数据库审计

满足等保2.0二级和三级 “安全审计”合规要求的同时，智能解析数据库通信流量，细粒度审计数据库访问行为，通过对数据库全量行为的审计溯源、危险攻击的实时告警、风险语句的智能预警，提供数据库资产最安全的监控保障。

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