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Describe DROP TABLE command of SQL along with both the options - CASCADE and RESTRICT.
DROP TABLE command - This command drops the specified table. Dropping a table also drops indexes and grants related with it. Objects built on dropped tables are marked invalid and cease to work.
CASCADE and RESTRICT options - The DROP TABLE with RESTRICT option destroy the table unless a few view or integrity constraint refer to the given table; if so, the command fails. Other than along with the CASCADE option, any referencing views or integrity constraints are (recursively) dropped as well.
Differentiate between natural join and outer join? Natural join is a binary operator which is written as (R * S) where as R and S are relations. The output of the natural join
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Example: //REVOKE ALL ON EMP FROM MCA12; (All permissions will be cancelled) You can also cancel only some of the permissions. Drop: A user-
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