What create when a primary key combined with a foreign key, Database Management System

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What will be create when a primary key if combined with a foreign key?

A primary key if combined with a foreign key it creates Parent-Child relationship between the tables that connect them.

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Which database object does not physically exist, Which database object does...

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Multilevel Index The Multilevel Index is a modification of the secondary level index system. In this system we might be use even more number of levels in case the table is eve

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