Question d’entretien chez J.P. Morgan
What is a group by in SQL?
Réponse à la question d'entretien
Utilisateur anonyme
4 mars 2015
Group By is used to aggregate data, and 'group' the same values together so you only see unique types
What is a group by in SQL?
Utilisateur anonyme
Group By is used to aggregate data, and 'group' the same values together so you only see unique types