When the value is 6, 2, 9, 13, 19, cate_noin (2) cannot be queried

When the value is 6, 2, 9, 13, and 19, cate_noin (2) cannot be found. a field in the table named cate_no is of the string type. When the cate_no & nbsp; value is & nbsp; 6, 2, 9, 13, 19 & nbsp. SELECT & nbsp; * & nbsp; FROM & nbsp; member & nbsp; WHERE & nbsp; cate_no & nb value = 6, 2, 9, 13, 19, cate_no in (2) cannot be queried
Member table
There is a field called
Cate_no
Is a string type.
When the cate_no value is 6, 2, 9, 13, and 19.

SELECT * FROM member WHERE cate_no in (2)

This data cannot be found,
However
SELECT * FROM member WHERE cate_no in (6)
This data can be searched,

Cate_no in (2)
How to write this MYSQL code?

------ Solution --------------------

SELECT * FROM member WHERE FIND_IN_SET (2, cate_no)