Question : find duplicate values

i have following table structure and i would like to display all duplicate it has
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id account nickname password
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what could be the query

Thank you

Answer : find duplicate values

If there is a column which have to be seen but does not containt duplicates you can use this

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SELECT T1.* FROM YourTable T1 INNER JOIN (
SELECT id, account, nickname, password, COUNT(*) [Count] FROM YourTable  
GROUP BY id, account, nickname, password  
HAVING COUNT(*) > 1
) T2 ON T1.id = T2.id AND T1.account = T2.account AND T1.nickname = T2.nickname AND T1.password = T2.password
...etc
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