MySQL query to find occurence of one field into another

Question

I want to find all rows form one table where one field is contained into another field. For example:

It seems simple:

SELECT * FROM MyTable WHERE name LIKE CONCAT('%', parent_names, '%')

I need 1-st and 3-rd row from this query, but the above doesn't work!

Answer 1

Use INSTR()

SELECT * FROM MyTable 
WHERE instr(parent_names, name) > 0

Answer 2

交换列，

WHERE parent_names LIKE CONCAT('%', name, '%')