Question

How can I, in mysql, check if a value is inside a number of fields in another table?

Something like

SELECT * FROM table WHERE concat('%',value,'%') NOT LIKE IN(SELECT field FROM anothertable)

But I don’t think that’s quite right, is it?

Answer 1

The following query should do it.

SELECT DISTINCT t.* 
FROM   table t, 
       anothertable a 
WHERE  a.field NOT LIKE Concat('%', t.`value`, '%');