MySQL query to display ranks of multiple columns?

For this, use FIND_IN_SET() method. Let us first create a table −

mysql> create table DemoTable634 (FirstName varchar(100),Marks int,Age int); Query OK, 0 rows affected (0.69 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable634 values('John',60,23); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable634 values('Chris',80,21); Query OK, 1 row affected (0.23 sec) mysql> insert into DemoTable634 values('Robert',70,24); Query OK, 1 row affected (0.22 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable634;

This will produce the following output −

+-----------+-------+------+ | FirstName | Marks | Age  | +-----------+-------+------+ | John      |    60 |   23 | | Chris     |    80 |   21 | | Robert    |    70 |   24 | +-----------+-------+------+ 3 rows in set (0.00 sec)

Following is the query to display ranks of multiple columns −

mysql> SELECT FirstName,Marks,Age,    FIND_IN_SET( Marks,( SELECT GROUP_CONCAT( Marks ORDER BY Marks DESC ) FROM DemoTable634)) AS RankOfMarks,    FIND_IN_SET(Age,( SELECT GROUP_CONCAT( Age ORDER BY Age DESC ) FROM DemoTable634) ) AS RankOfAge    FROM DemoTable634;

This will produce the following output displaying the rank on the basis of marks and age −

+-----------+-------+------+-------------+-----------+ | FirstName | Marks | Age  | RankOfMarks | RankOfAge | +-----------+-------+------+-------------+-----------+ | John      |    60 |   23 |           3 | 2 | | Chris     |    80 |   21 | 1 | 3 | | Robert    |    70 |   24 | 2 | 1 | +-----------+-------+------+-------------+-----------+ 3 rows in set (0.01 sec)