Question

i got this error:

for the right syntax to use near 'INNER JOIN oferta B ON A.oferta_id_oferta = B.id_oferta AND B.oferta = "design' at line 4

i can’t make a inner join inside a where clause ? or exists other problem with this query ?

UPDATE `oferta_has_tags` A
    SET fraccao = "1/7"
    WHERE (
    INNER JOIN oferta B
    ON A.oferta_id_oferta = B.id_oferta
    AND B.oferta = "designer"
    AND B.estado = 0)

Answer 1

Express it as a simple IN:

UPDATE oferta_has_tags
SET fraccao = '1/7'
WHERE oferta_id_oferta IN (
    SELECT id_oferta 
    FROM oferta
    WHERE oferta = 'designer'
    AND estado = 0)

Also, changed double quotes (") to single quotes (') – using double quotes will cause an error