mysql和区分大小写真让人困惑

Question

Windows 操作系统 - phpMyAdmin

select auth, COUNT(*) AS count from posts where auth = 1;

给出一个信息:

Your SQL query has been executed successfully

但是:

select auth, count(*) AS count from posts where auth = 1;

给出以下内容:

Showing rows 0 - 0 (1 total, Query took 0.0070 seconds.

here我发现了一个关于 MySql 和区分大小写的真正令人困惑的故事。

是否有任何关于编写查询的通用最佳实践，关于小写或大写，或者我必须为每个操作系统单独学习所有规则？

Answer 1

你试过吗:

 select auth, count(*) AS count 
 from posts 
 where auth = 1
 group by auth
 ;