mysql remove duplicates
DELETE FROM table_name WHERE id NOT IN ( SELECT id FROM table_name GROUP BY field_1, field_2)
mysql remove duplicates
DELETE FROM table_name WHERE id NOT IN ( SELECT id FROM table_name GROUP BY field_1, field_2)
mysql delete duplicate rows but keep one
DELETE c1 FROM contacts c1 INNER JOIN contacts c2 WHERE c1.id > c2.id AND c1.email = c2.email;
how to delete all duplicate items in mysql
DELETE FROM FriendsData WHERE fID NOT IN ( SELECT fID FROM FriendsData GROUP BY UserID, FriendsUserID, IsSpecial, CreatedBy)
mysql delete duplicate rows except one
DELETE FROM NAMES WHERE id NOT IN (SELECT * FROM (SELECT MIN(n.id) FROM NAMES n GROUP BY n.name) x)
mysql remove duplicates
DELETE t1 FROM contacts t1 INNER JOIN contacts t2 WHERE t1.id < t2.id AND t1.email = t2.email;Code language: SQL (Structured Query Language) (sql)
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