"WHERE字段IN"SQL查询的顺序？

Question

我使用以下SQL从MySQL数据库中选择记录:

SELECT * FROM cms_product WHERE id IN (3,22,1);

结果顺序等于"ORDER BY id ASC",因此在示例中返回记录1,3,22.如何以IN子句中输入的确切方式对它们进行排序？订购为3,22,1？谢谢.

Answer 1

众多选择 -

案件:

首选,是ANSI-92,它可以移植到其他数据库.

  SELECT * 
    FROM cms_product 
   WHERE id IN (3,22,1)
ORDER BY CASE id
           WHEN 3 THEN 1
           WHEN 22 THEN 2
           WHEN 1 THEN 3
         END

FIND_IN_SET:

  SELECT * 
    FROM cms_product 
   WHERE id IN (3,22,1)
ORDER BY FIND_IN_SET(id, '3,22,1');

领域:

  SELECT * 
    FROM cms_product 
   WHERE id IN (3,22,1)
ORDER BY FIELD(id, 3, 22, 1);

参考:

• 案件
• 领域
• FIND_IN_SET

Answer 2

尝试使用ORDER BY FIELD,例如:

SELECT * FROM cms_product WHERE id IN (3,22,1) ORDER BY FIELD (id, 3, 22, 1);

来源于此