Question d’entretien chez NSETECH
How to find duplicate elements in table
Réponse à la question d'entretien
Utilisateur anonyme
12 juill. 2017
select column_name, count(column_name) from table group by column_name having count (column_name) > 1;
How to find duplicate elements in table
Utilisateur anonyme
select column_name, count(column_name) from table group by column_name having count (column_name) > 1;