分类: MySQL
背景由于漏扫,mysql 安全漏洞(CVE-2023-38545)、Oracle MySQL Server 安全漏洞(CVE-2023-0464)、Oracle mysql 敏感信息泄漏漏洞(CVE- ... 阅读全文
MySQL跳过GTID事务的方法
设置参数slave_skip_error使用GTID复制从库跳过错误,不支持设置sql_slave_skip_counter,但是支持设置参数slave_skip_errors,只能在参数文件中设置 ... 阅读全文
Why Are Queries with Many IN Values More Expensive After Upgrading to MySQL 8.x? 为什么升级到MySQL 8.x后,带有大量IN条件的查询变得更昂贵?
原文:https://www.percona.com/blog/why-are-queries-with-many-in-values-more-expensive-after-upgrading-t ... 阅读全文
在Docker中快速使用各个版本的MySQL数据库
官方镜像https://hub.docker.com/_/mysqhttp://hub.daocloud.i5.1、5.5、5.6、5.7+ 、 8.0+ 、 8.4+ 都是LTS(Long Te ... 阅读全文
MySQL版本发布历史
发布历史LTS = Long-Term Support, IR = Innovation ReleasReleasGeneral availabilitLatest minor versioLatest releas ... 阅读全文
MySQL安装与卸载(持续更新)
MySQL客户端安装-- 安装MySQL客户端rpm -Uvh https://repo.mysql.com//mysql80-community-release-el7.rpyum-config- ... 阅读全文
MySQL数据库密码过期的处理ERROR 1820
现象Your password has expired. To log in you must change it using a client that supports expired passw ... 阅读全文
MySQL登陆报错 ERROR 1040 (HY000) Too many connections 超过最大连接数错误
现象ERROR 1040 (HY000): Too many connections 该错误表示mysql连接数超过最大连接数解决show variables like '%max_conn ... 阅读全文
MySQL中将中文转换为拼音
前言在WordPress中,有的标签的别名为中文,这个时候,点击标签的时候并不能将所有文章都带出来,所以需要修改成拼音,可以使用如下代码select d.name,to_pinyin(d.name) ... 阅读全文
MySQL报错Host is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'和could not be resolved: Name or service not known
现象'10.64.30.4' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts原因阅读全文