MySQL 如何从 MySQL 数据库中随机选择一条记录？

为此，您可以使用 ORDER BY RAND LIMIT。让我们首先创建一张表−

mysql> create table DemoTable1581
   -> (
   -> StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY,
   -> StudentName varchar(20)
   -> );
Query OK, 0 rows affected (1.34 sec)

使用 insert 命令向表中插入一些记录−

mysql> insert into DemoTable1581(StudentName) values('Chris');
Query OK, 1 row affected (0.41 sec)
mysql> insert into DemoTable1581(StudentName) values('Bob');
Query OK, 1 row affected (1.58 sec)
mysql> insert into DemoTable1581(StudentName) values('Sam');
Query OK, 1 row affected (2.11 sec)
mysql> insert into DemoTable1581(StudentName) values('Mike');
Query OK, 1 row affected (0.55 sec)
mysql> insert into DemoTable1581(StudentName) values('Carol');
Query OK, 1 row affected (0.16 sec)

使用 select 语句显示表中的所有记录−

mysql> select * from DemoTable1581;

这会产生以下输出−

+-----------+-------------+
| StudentId | StudentName |
+-----------+-------------+
|         1 | Chris       |
|         2 | Bob         |
|         3 | Sam         |
|         4 | Mike        |
|         5 | Carol       |
+-----------+-------------+
5 rows in set (0.00 sec)

以下是从 MySQL 数据库中选择一条随机记录的查询语句−

mysql> select * from DemoTable1581 order by rand() limit 1;

这会产生以下输出−

+-----------+-------------+
| StudentId | StudentName |
+-----------+-------------+
|         4 | Mike        |
+-----------+-------------+
1 row in set (0.07 sec)

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