如何从MySQL数据库中选择随机记录？
为此，您可以使用ORDERBYRANDLIMIT。让我们首先创建一个表-
mysql> create table DemoTable1581 -> ( -> StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> StudentName varchar(20) -> );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable1581(StudentName) values('Chris');
mysql> insert into DemoTable1581(StudentName) values('Bob');
mysql> insert into DemoTable1581(StudentName) values('Sam');
mysql> insert into DemoTable1581(StudentName) values('Mike');
mysql> insert into DemoTable1581(StudentName) values('Carol');使用select语句显示表中的所有记录-
mysql> select * from DemoTable1581;
这将产生以下输出-
+-----------+-------------+ | StudentId | StudentName | +-----------+-------------+ | 1 | Chris | | 2 | Bob | | 3 | Sam | | 4 | Mike | | 5 | Carol | +-----------+-------------+ 5 rows in set (0.00 sec)
这是从MySQL数据库中选择随机记录的查询-
mysql> select * from DemoTable1581 order by rand() limit 1;
这将产生以下输出-
+-----------+-------------+ | StudentId | StudentName | +-----------+-------------+ | 4 | Mike | +-----------+-------------+ 1 row in set (0.07 sec)