Probowalem w natepujacy sposob
SELECT tabela2.*, (SELECT COUNT(id) FROM tabela1 WHERE tabela1.url = tabela2.adv) AS numLinks FROM tabela2
ale nie bardzo to dziala, jakies sugestie?
SELECT tabela2.*, (SELECT COUNT(id) FROM tabela1 WHERE tabela1.url = tabela2.adv) AS numLinks FROM tabela2
SELECT adv.*, COUNT(art2adv.advUrl) AS numLinks FROM adv LEFT JOIN art2adv ON (art2adv.advUrl = adv.url) GROUP BY adv.url