Question

How to make query like this:

SELECT column1 FROM table1 WHERE ppp=$parameter 
AND (SELECT * FROM table2 WHERE parameter=$parameter AND qweqwe=$parameter2)

PS: ‘$’ not from PHP, I just show that this values are variable.

Actually, I need AND qweqwe<650 in the second query

Answer 1

Maybe something like this:

SELECT 
   column1 
FROM 
   table1 
WHERE 
   ppp=$parameter 
   AND EXISTS
       (
           SELECT
               NULL
           FROM
               table2
           WHERE
               table1.ppp=table2.parameter
               AND qweqwe<$parameter2
    )