mysql - 两个值之间的sql查询 desc

Question

我有一个 MySQL 表，它有两个字段start_interval，并且end_interval都存储int代表小时的值。我正在使用此查询从该表中选择记录：

SELECT *
FROM messages
WHERE 23 BETWEEN start_interval AND end_interval;

start_interval当大于时如何获取值end_interval？例如 ifstart_interval = 22和end_interval = 5?

Answer 1

怎么样：

SELECT * FROM messages
WHERE 23 BETWEEN LEAST(start_interval, end_interval) AND
                GREATEST(start_interval, end_interval); 

Answer 2

也许你检查两个方向：

SELECT * FROM messages
WHERE
  (23 BETWEEN start_interval AND end_interval) OR
  (23 BETWEEN end_interval AND start_interval); 

Answer 3

怎么样：

where 23 between start_interval and if(start_interval>=end_interval,end_interval+24,end_interval)?

Answer 4

…
WHERE 23 BETWEEN start_interval AND end_interval
   OR start_interval > end_interval AND
      23 NOT BETWEEN end_interval + 1 AND start_interval - 1