阿里云mysql数据库的相关内容

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 2025-10-10 来自：开发者社区

阿里云mysql云数据库和自己服务器搭建的mysql区别，哪种方案好？

阿里云mysql云数据库和自己服务器搭建的mysql区别，哪种方案好？数据库自己买服务器来搭建还是应该选择云数据库来使用，2种方案的优缺点？阿里云ECS服务器99元，续费同价：https://www.aliyun.com/minisite/goods轻量应用服务器低至68元1年：https://www.aliyun.com/product/swas

问答 2024-11-28 来自：开发者社区

阿里云RDS mysql数据库show slave status信息疑问

在香港申请了一台mysql数据库，执行show slave status看到master_host是美国国防部的IP，这是一台主库为什么有slave的信息？

问答 2024-08-09 来自：开发者社区

如何将阿里云RDS MySQL指定库迁移到本地MySQL数据库？

问答 2024-07-17 来自：开发者社区

阿里云函数计算fc如何通过内网链接阿里云的云数据库mysql和云数据库redis？

问题描述之前使用的ecs自建的数据库在服务器，链接数据库使用的127.0.0.1,现在项目整体迁移到函数计算了，也购买了阿里云的云数据库mysql和redis，但是fc链接不上云msyql和云数据库redis。求救大佬们。期望结果能够使用fc代码内网链接上msyql和redis已尝试的方法分不清楚vpc，数据库的安全组和白名单是啥关系。哎

问答 2024-06-04 来自：开发者社区

源和目标都是阿里云RDS(MySQL)时如何判断目前两个数据库已完全同步

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更新时间 2025-10-12 15:19:26

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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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