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In Oracle/PLSQL, the sys_context function can be used to retrieve information about the Oracle environment.The syntax for the sys_context function is:sys_context( namespace, parameter, [ length ] )namespace is an Oracle namespace that has already been created. If the namespace of 'USERENV' is used, attributes describing the current Oracle session can be returned.parameter is a valid attribute that has been set using the DBMS_SESSION.set_context procedure.length is optional. It is the length of t