MySQL 8.0 Reference Manual(读书笔记36节-- 字符编码
1.Configuring Application Character Set and Collation Regardless of how you configure the MySQL character set for application use, you must also consi... 2025-03-18 22:20:02MySQL 8.0 Reference Manual(读书笔记37节-- 字符编码
1.概述 The Unicode Standard includes characters from the Basic Multilingual Plane (BMP) and supplementary characters that lie outside the BMP. This sect... 2025-03-18 22:20:02MySQL 8.0 Reference Manual(读书笔记35节-- 字符编码
1.Character String Literal【ˈlɪtərəl 字面意义的;缺乏想象力的;完全按原文的;】 Character Set and Collation Every character string literal has a character set and a collati... 2025-03-18 22:20:01MySQL 8.0 Reference Manual(读书笔记34节-- 字符编码
MySQL includes character【ˈkærəktər 字母,符号;】 set support that enables you to store data using a variety【vəˈraɪəti (同一事物的)不同种类,多种式样;变化;(植物、语言等的... 2025-03-18 22:20:00Windows和Linux环境下忘记MySQL连接密码的解决办法
目录一、Linux下MySQL忘记root密码情景再现1、停止MySQL服务2、安全模式启动MySQL服务,并暂时跳过权限表验证以及禁用网络连接3、更新mysql.user表中root用户的密码。4、刷新MySQL的权限缓存二... 2025-03-18 22:19:47MySQL 8.0 Reference Manual(读书笔记20节-- NULL 模式匹
1.NUll值 The NULL value can be surprising until you get used to it. Conceptually【kənˈsɛptʃuəli 概念;观念上;概念上;在概念上;概念地;】, NULL means “a missing unknown val... 2025-03-18 22:19:46MySQL 8.0 Reference Manual(读书笔记19节-- 日期与计算
1.age 与 出生日期 为什么设计的时候,存放的是出生日期而不是年龄呢?这个问题简单,细想很有意思,也包含着智慧,来自生产生活的思考。下面的解释很到位。 How about age? That might... 2025-03-18 22:19:45MySQL binlog超过binlog_expire_logs_seconds阈值没有删除案
生产环境有一套3个节点的MySQL InnoDB Cluster,MySQL的版本为Server version: 8.0.35 MySQL Community Server - GPL, 早上突然收到Zabbix的告警,其中一个节点出现空间告警:"/data: Disk space is... 2025-03-18 22:19:45