Question d’entretien chez Deltek

Difference between left outer and inner join in SQL.

Réponse à la question d'entretien

Utilisateur anonyme

17 sept. 2015

LEFT OUTER JOIN returns all the rows from the first table, even if there are no matches in the second table. RIGHTOUTER JOIN returns all the rows from the second table, even if there are no matches in the first table. INNER JOINrequires there is at least a match in comparing the two tables.

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