MySQL query to retrieve records from the part of a comma-separated list?

To retrieve records from the part of a comma-separated list, you can use built in function FIND_IN_SET().

Let us first create a table −

mysql> create table DemoTable    (    Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    Name varchar(20),    Marks varchar(200)    ); Query OK, 0 rows affected (0.61 sec)

Following is the query to insert some records in the table using insert command −

mysql> insert into DemoTable(Name,Marks) values('Larry','98,34,56,89'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable(Name,Marks) values('Chris','67,87,92,99'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable(Name,Marks) values('Robert','33,45,69,92'); Query OK, 1 row affected (0.22 sec)

Following is the query to display records from the table using select command −

mysql> select *from DemoTable;

This will produce the following output −

+----+--------+-------------+ | Id | Name | Marks | +----+--------+-------------+ | 1 | Larry | 98,34,56,89 | | 2 | Chris | 67,87,92,99 | | 3 | Robert | 33,45,69,92 | +----+--------+-------------+ 3 rows in set (0.00 sec)

Following is the query to retrieve records from the part of a comma separated list. Here, we are getting the records of a student with marks 99 −

mysql> select Id,Name from DemoTable where find_in_set('99',Marks) > 0;

This will produce the following output −

+----+-------+ | Id | Name | +----+-------+ | 2 | Chris | +----+-------+ 1 row in set (0.00 sec)