Sql outer join, PL-SQL Programming

SQL outer join

SELECT *

FROM IS_CALLED NATURAL LEFT JOIN IS_ENROLLED_ON

Note that adding LEFT to an invocation of CROSS JOIN has no effect unless the right-hand operand table is empty. As outer joins in general denote tables that are not counterparts of relations.

Posted Date: 1/18/2013 4:51:57 AM | Location : United States







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