mysql check if numbers are in a comma separated list

Question

I have a table like this:

UID(int) NUMBERS(blob)
----------------------
1        1,13,15,20
2        3,10,15,20
3        3,15

And I would l

Answer 1

Not the most pretty solution, but it works:

select
   UID
from
   YOUR_TABLE
where
   find_in_set('3', cast(NUMBERS as char)) > 0
   and
   find_in_set('15', cast(NUMBERS as char)) > 0

Note that it's string comparison, so you may need to cast your input parameters to char as well.