mysql - How to use like and in together?

Question

How to use like and in together ?

SELECT a FROM A WHERE a LIKE (SELECT b FROM B WHERE c='india');

where column a and b are not equal but b only contains first three digits of a as shown below a=145xxxxxx; b=145;

any clue? how to achieve it?

Answer 1

SELECT A.a 
FROM A 
inner join B on A.a like concat(B.b,'%')
             and B.c = 'india'

Answer 2

SELECT a FROM A 
WHERE EXISTS (SELECT 1 FROM B WHERE c='india' AND A.a LIKE CONCAT(B.b,'%') );