包阅导读总结
1. 关键词：MySQL、Varchar、区别、查询、名称
2. 总结：
文本主要围绕 MySQL 中`Varchar(50)`和`varchar(500)`的区别展开，并给出了多个涉及这两种数据类型的查询语句。
3. 主要内容：
– 一级：探讨 MySQL 中`Varchar`数据类型的区别
– 二级：涉及`Varchar(50)`和`varchar(500)`
– 二级：给出多个查询语句示例
– 三级：如`select from category_info_varchar_50 where name = ‘name100000’`
– 三级：以及包含多个名称的`in`条件查询语句
思维导图：
文章地址：https://mp.weixin.qq.com/s/02D5sHTsYDPw-r6W3SJEgg
文章来源：mp.weixin.qq.com
作者：向显
发布时间：2024/7/14 17:08
语言：中文
总字数：1839字
预计阅读时间：8分钟
评分：91分
标签：MySQL,数据库性能,字段类型,Varchar,存储空间
以下为原文内容
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select * from category_info_varchar_50 where name = 'name100000'select * from category_info_varchar_500 where name = 'name100000'select * from category_info_varchar_50 where name in('name100','name1000','name100000','name10000','name1100000','name200','name2000','name200000','name20000','name2200000','name300','name3000','name300000','name30000','name3300000','name400','name4000','name400000','name40000','name4400000','name500','name5000','name500000','name50000','name5500000','name600','name6000','name600000','name60000','name6600000','name700','name7000','name700000','name70000','name7700000','name800','name8000','name800000','name80000','name6600000','name900','name9000','name900000','name90000','name9900000')select * from category_info_varchar_50 where name in('name100','name1000','name100000','name10000','name1100000','name200','name2000','name200000','name20000','name2200000','name300','name3000','name300000','name30000','name3300000','name400','name4000','name400000','name40000','name4400000','name500','name5000','name500000','name50000','name5500000','name600','name6000','name600000','name60000','name6600000','name700','name7000','name700000','name70000','name7700000','name800','name8000','name800000','name80000','name6600000','name900','name9000','name900000','name90000','name9900000')
