大数据数据库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。

文章 2025-04-19 来自：开发者社区

大数据新视界--大数据大厂之MySQL数据库课程设计：MySQL 数据库 SQL 语句调优方法详解（2-1）

全网（微信公众号/CSDN/抖音/华为/支付宝/微博）：青云交 💖亲爱的朋友们，热烈欢迎来到青云交的博客！能与诸位在此相逢，我倍感荣幸。在这飞速更迭的时代，我们都渴望一方心灵净土，而我的博客正是这样温暖的所在。这里为你呈上趣味与实用兼具的知识，...

问答 2024-05-07 来自：开发者社区

大数据计算MaxCompute服务器怎么选？还有mysql数据库，是否有必要采购阿里云的mysql？

文章 2023-06-12 来自：开发者社区

一、MySQL简介MySQL是一款开源的关系型数据库管理系统，其优点包括易于使用、高效性能和可扩展性等。MySQL支持多种操作系统平台（如Linux、Windows、MacOS等），同时也支持多种编程语言（如Java、PHP、Python等）。二、MySQL特色功能支持ACID事务：MySQL支持ACID（原子性、一致性、隔离性和持久性）事务，确保数据的完整性和一致性。可扩展性好：MySQL可以....

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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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