mysql实例数据库的相关内容

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。

文章 2024-10-19 来自：开发者社区

Django学习二：配置mysql，创建model实例，自动创建数据库表，对mysql数据库表已经创建好的进行直接操作和实验。

前言上接博文：Django学习一：创建Django框架，介绍Django的项目结构和开发逻辑。创建应用，编写主包和应用中的helloworld。紧跟上一篇博文，本文主要基于上一篇项目的内容，配置mysql，创建model实例，自动创建数据库表，进行操作model，并进行反思（不采用自动创建表，如何操作mysql的表）有兴趣可以添加我，一起探讨技术。加V:Fengfl1...

文章 2024-07-18 来自：开发者社区

MaxCompute产品使用合集之如何实现类似mysql实例中的数据库功能

问题一：请问大数据计算MaxCompute，Information_Schema中的哪个表可以查看？请问大数据计算MaxCompute，Information_Schema中的哪个表可以查看？参考回答： ...

问答 2024-06-13 来自：开发者社区

使用datax-web从mysql同一个实例不同的数据库进行同步时经常出现数据丢失

datax-web配置使用了增量时间变量（-DlastTime='%s' -DcurrentTime='%s'），从datax-web日志中可以看到具体的sql，然后把sql放到mysql执行可以查询出2条数据，但是datax日志显示总数是0或者1，就是会少数据，请问是什么问题呢，如何解决

问答 2024-06-02 来自：开发者社区

RDS for SQL Server/MySQL 实例备份单个数据库

问答 2024-06-02 来自：开发者社区

RDS MySQL实例DTS迁移数据库账号密码会一起迁移吗

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更新时间 2024-10-20 09:58:20

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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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