Du skal gøre noget som dette:
SELECT substring_index(email, '@', -1) domain, COUNT(*) email_count
FROM table
GROUP BY substring_index(email, '@', -1)
-- If you want to sort as well:
ORDER BY email_count DESC, domain;
Du skal gøre noget som dette:
SELECT substring_index(email, '@', -1) domain, COUNT(*) email_count
FROM table
GROUP BY substring_index(email, '@', -1)
-- If you want to sort as well:
ORDER BY email_count DESC, domain;