Mysql in 排序

SELECT `id` FROM `topic` WHERE `id` IN (‘444‘,‘512‘,‘447‘,‘509‘,‘504‘,‘445‘,‘511‘) ORDER BY FIELD(id,‘444‘,‘512‘,‘447‘,‘509‘,‘504‘,‘445‘,‘511‘)

SELECT `id` FROM `topic` WHERE `id` IN (‘444‘,‘512‘,‘447‘,‘509‘,‘504‘,‘445‘,‘511‘) ORDER BY INSTR(‘444,512,447,509,504,445,511‘, CONCAT(‘,‘, id,‘,‘))

Mysql in 排序

原文：http://www.cnblogs.com/zhaoyuqi/p/6722565.html