Mysql按指定顺序排序的两种写法

SELECT `ID` FROM wp_posts WHERE `ID` in (1,2,3,4,5) ORDER BY FIELD(`ID`,5,4,3,1,2);

// 纯数字字段不用处理引号，比较好拼接

 

SELECT `ID` FROM wp_posts WHERE `ID` in (1,2,3,4,5) ORDER BY FIND_IN_SET(`post_title`,'A,B,C,D,E');

// 一个引号全包住，搞定字符值字段

 

-- 注意：第一个参数不能是字符串，否则不起作用