SQL, где несколько значений
SELECT column_name(s)
FROM table_name
WHERE column_name IN (value1, value2, ...);
Delightful Dragonfly
SELECT column_name(s)
FROM table_name
WHERE column_name IN (value1, value2, ...); SELECT ads.*, location.county
FROM ads
LEFT JOIN location ON location.county = ads.county_id
WHERE ads.published = 1
AND ads.type = 13
AND ads.county_id IN (2, 5, 7, 9)