数据库同步mysql 的相关内容

阿里云文档 2025-12-23

IMCI全文索引使用说明

本文档介绍如何在PolarDB MySQL版的列存索引（IMCI）上构建和使用全文索引，通过列级 COMMENT 配置倒排索引，即可利用MATCH...AGAINST语法或自动优化的LIKE查询实现毫秒级模糊检索。该功能基于 IMCI 的倒排索引与词项匹配机制实现，详细原理请参见列存索引全文检索能力剖析。

阿里云文档 2025-12-16

【新功能/规格】RDS MySQL蓝绿部署支持MySQL 5.6升级至MySQL 5.7/8.0

自北京时间2025年10月15日起，RDS MySQL蓝绿部署功能支持MySQL 5.6升级至MySQL 5.7及8.0。

阿里云文档 2025-11-18

半同步复制超时优化

在MySQL半同步复制环境中提交大事务时，常因Binlog传输所需时间过长而导致半同步超时。这会使半同步复制降级为异步复制，引致数据可靠性下降，同时阻塞后续事务，造成业务性能抖动。为解决此问题，RDS MySQL推出了Binlog实时传输功能。该功能可以在大事务执行过程中就将其Binlog流式传输至备库，从而在事务提交时将同步耗时降至毫秒级，保障数据高可靠与业务性能的稳定。

阿里云文档 2025-10-20

PolarDB MySQL版边缘云集群的SQL洞察功能默认开启，支持多维度搜索与全量SQL明细采集，助力性能诊断与风险分析。

SQL洞察功能能够对SQL进行健康状况的诊断、性能问题的排查以及业务流量的分析，从而提升故障诊断、数据库优化与风险发现的效率。

阿里云文档 2025-10-20

PolarDB MySQL边缘云集群支持慢SQL查询。

PolarDB MySQL版边缘云集群支持慢SQL查询，默认将执行时间超过1秒的SQL语句定义为慢SQL，默认保存14天。用户可以使用慢SQL功能分析DB性能问题。

问答 2023-04-19 来自：开发者社区

大佬，还有个问题请教一下，两个不同的数据库实例就可以同步，换作在mysql不同schema的表关联同

大佬，还有个问题请教一下，两个不同的数据库实例就可以同步，换作在mysql不同schema的表关联同步不生效是什么原因？

问答 2023-03-13 来自：开发者社区

oracle cdc 数据库编码 US7ASC‖ 同步到MySQL乱码，有大佬知道怎么转码吗？

问答 2023-02-07 来自：开发者社区

如果本地数据库（oracle）要实时或者准时事同步到云上（mysql）咋弄？

文章 2022-02-16 来自：开发者社区

MySQL数据库的同步配置+MySql 读写分离

MySQL数据库的同步。 MySQL是开源的关系型数据库系统。主从同步复制(Replication)是从一台MySQL数据库服务器（主服务器master）复制数据到另一个服务器（从服务器slave）的一个进程。配置主服务器(master) 1、编辑数据库配置文件my.cnf 或 my.ini （windows）,一般在/etc/目录下。 &n...

文章 2022-02-16 来自：开发者社区

linux下数据库双向同步之mysql

环境：lamp 下搭建一个博客然后实现同步这里：以wordpress为例，进行实施具体操作如下：一、环境配置 1.自动获取ip地址，虚拟机设置为桥接 2.[root@gjpslave ~]# yum install wget #换成163的yum源： cd /etc/yum.repos.d mv CentOS-Base.repo CentOS-Base.repo.s...

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更新时间 2025-09-25 09:06:00

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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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