In which format database schema is written, Database Management System

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In which format database schema is written ?

Data base schema is written in the DDL format.

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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

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Example -GRANT CREATE SESSION TO MCA12; (This command gives system level permission on creating a session - not portable) GRANT SELECT ON EMP TO MCA12; (Object level permi

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What is B-Tree? A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.

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