Thank you so much guys. I have tried all of your suggestions but none of them work. Interesting thing is that code works well in sqlfiddle
( same schema and values ) but not working in local environment! Here is the query that working in local.
/**
* DNR_DETAIL_DESC IS TABLE A
* DNR_LIST IS TABLE B
*/
SELECT A.DNR_DETAIL_DESC,
CASE WHEN B.DNR_ID IS NOT NULL THEN 1 ELSE 0 END AS CHECKED
FROM MD_DNR_DETAIL A
LEFT JOIN (SELECT * FROM DNR_LIST WHERE DNR_ID = 1) AS B
ON FIND_IN_SET(A.DNR_DETAILT_ID, B.DNR_DETAIL_ID)