我们如何从 MySQL 表中获取交替奇数记录?
mysqlmysqli database更新于 2024/3/1 23:31:00
为了理解这个概念，我们使用来自表"Information"的数据，如下所示 −
mysql> Select * from Information; +----+---------+ | id | Name | +----+---------+ | 1 | Gaurav | | 2 | Ram | | 3 | Rahul | | 4 | Aarav | | 5 | Aryan | | 6 | Krishan | +----+---------+ 6 rows in set (0.00 sec)
现在，下面的查询将从上面的表‘information’中获取备用的奇数记录。 −
mysql> Select id,Name from information group by id having mod(id,2) = 1; +----+--------+ | id | Name | +----+--------+ | 1 | Gaurav | | 3 | Rahul | | 5 | Aryan | +----+--------+ 3 rows in set (0.09 sec)
