Question d’entretien chez SmartVision IT
difference between union and union all
Réponse à la question d'entretien
Utilisateur anonyme
6 août 2012
every column must match the table of other table which we are trying to execute with union query.
difference between union and union all
Utilisateur anonyme
every column must match the table of other table which we are trying to execute with union query.