sql query duplicate rows
/* This SQL Query will show each of those duplicate
rows individually instead of just grouping it */
SELECT username,email
FROM `users`
WHERE `username`
IN (SELECT username FROM `users` GROUP BY username HAVING COUNT(username) > 1)sql duplicate rows
/*SELECT hotel_id, reservation_id, COUNT(hotel_id)FROM staywhere reservation_id is not nullGROUP BY hotel_id, reservation_idHAVING COUNT(hotel_id) > 1*/select distinct s.hotel_id , t.* from stay sright join ( select hotel_id, reservation_id, count(*) as qty from staywhere reservation_id !=1 group by hotel_id, reservation_id having count(*) > 1) t on s.hotel_id = t.hotel_id and s.reservation_id = t.reservation_idCopyright © 2021 Codeinu
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