Introduction of the term universe in SQL
Give a brief introduction of the term universe in SQL? Brief explain the kinds of universes in business objects?
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Mapping data in database is done through semantic layer known as Universe . It detaches the decisive employs from complex structures of database. The universes are: Secured – Alters made in the universe can be exported. The other two are shared and Personal.
Describe briefly the term a subquery?
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States the term Mirror Activator Disk mirroring?
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