Question

I’m trying do something like this:

SELECT * FROM table WHERE column IN (1,2,3)

but in place of 1,2,3 I want to use a column from another table that contains a comma-delimited list just like “1,2,3” above.

I have tried to do this:

SELECT 
  GROUP_CONCAT(a.eating_area SEPARATOR ', ') 
FROM table_areas a 
WHERE a.eating_area_id IN (
  SELECT
    o.eating_area_ids 
  FROM table_offers o WHERE o.rid=1
)

however this only returns the value associated with 1, and not 2 or 3. Can this be done or is there another way to do this?

Many thanks

Answer 1

SELECT * FROM table t 
WHERE IF(FIND_IN_SET(column,(SELECT "1,2,3" FROM otherTable WHERE 1))>=1,1,0) 
-- FIND_IN_SET will return the position. 

I don’t know if it’s the best way to do it but… i think it could work.
Source: Find_in_set