MySQL和區分大小寫的真正混亂

Question

Windows操作系統-phpMyAdmin

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

提供信息：

Your SQL query has been executed successfully

但：

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

給出以下內容：

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

在這里，我發現了一個關於MySql和區分大小寫的真正令人困惑的故事。

對於每個操作系統，是否存在編寫小寫或大寫查詢的通用最佳實踐，或者我必須分別學習所有規則？

Answer 1

你試過了嗎：

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