Pergunta de entrevista da empresa Deltek
Difference between left outer and inner join in SQL.
Resposta da entrevista
Sigiloso
17 de set. de 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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