Answers for "how to check the duplicate rows based on two columns are the same in sql"

SQL
26

finding duplicate column values in table with sql

SELECT username, email, COUNT(*)
FROM users
GROUP BY username, email
HAVING COUNT(*) > 1
Posted by: Guest on April-03-2020
0

sql select duplicates based on two columns

select s.id, t.* 
from [stuff] s
join (
    select name, city, count(*) as qty
    from [stuff]
    group by name, city
    having count(*) > 1
) t on s.name = t.name and s.city = t.city
Posted by: Guest on October-10-2021

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