Question

I have a value say for example “1” and I Have column “grp_id” in my db table “tbl_grp“. This column “grp_id” contains the commaseperated values as example “1,2,3” I am looking for a way to compare my single value with column “grp_id“.

right now I am using the below query:

"SELECT user_id, user_fname, user_lname FROM tbl_grp WHERE grp_id='1'";

Answer 1

You could you FIND_IN_SET:

SELECT user_id, user_fname, user_lname FROM tbl_grp WHERE FIND_IN_SET(1, grp_id);

But the correct way to do this, instead of storing a comma-separated list of ids in a column, is to have a many-to-many association between your users and groups:

user(user_id, user_fname, ...)
group(group_id, group_name, ...)
user_group(#user_id, #group_id) // you can have any number of (user_id, group_id) couples