How to display 3 random values from MySQL table?
Use RAND() for random, whereas LIMIT 3 for the number of values i.e. 3 here −
select yourColumnName from yourTableName order by rand() limit 3;
Let us first create a table −
mysql> create table DemoTable646 (
Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,FirstName varchar(100)
);
Query OK, 0 rows affected (0.76 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable646(FirstName) values('John');
Query OK, 1 row affected (0.18 sec)
mysql> insert into DemoTable646(FirstName) values('Bob');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable646(FirstName) values('Chris');
Query OK, 1 row affected (0.10 sec)
mysql> insert into DemoTable646(FirstName) values('David');
Query OK, 1 row affected (0.28 sec)
mysql> insert into DemoTable646(FirstName) values('Bob');
Query OK, 1 row affected (0.11 sec)
mysql> insert into DemoTable646(FirstName) values('Carol');
Query OK, 1 row affected (0.27 sec)
mysql> insert into DemoTable646(FirstName) values('Mike');
Query OK, 1 row affected (0.10 sec)Display all records from the table using select statement −
mysql> select *from DemoTable646;
This will produce the following output −
+----+-----------+
| Id | FirstName |
+----+-----------+
| 1 | John |
| 2 | Bob |
| 3 | Chris |
| 4 | David |
| 5 | Bob |
| 6 | Carol |
| 7 | Mike |
+----+-----------+
7 rows in set (0.00 sec)
Following is the query to display 3 random values from MySQL table −
mysql> select FirstName from DemoTable646 order by rand() limit 3;
This will produce the following output −
+-----------+
| FirstName |
+-----------+
| Mike |
| John |
| Chris |
+-----------+
3 rows in set (0.00 sec)
Published on 23-Aug-2019 11:11:05
