Опитайте
SELECT Email.address
FROM Email LEFT OUTER JOIN DoNotMail on Email.address = DoNotMail.address
WHERE DoNotMail.address is null
Той избягва нуждата от подзаявка.
Опитайте
SELECT Email.address
FROM Email LEFT OUTER JOIN DoNotMail on Email.address = DoNotMail.address
WHERE DoNotMail.address is null
Той избягва нуждата от подзаявка.