Oracle has a very useful built-in function called SYS_CONTEXT. The syntax of this function goes like this:

SYS_CONTEXT ( 'namespace' , 'parameter' [, length] )

SYS_CONTEXT returns the value of parameter associated with the context namespace. You can use this function in both SQL and PL/SQL statements.

What makes this function more interesting is the fact that Oracle provides a built-in namespace called USERENV with predefined parameters, which describes the current session. Go ahead and run the following query:

from dual

Amazing , you can Use this Function in Oracle Security .


Thank you
Osama mustafa

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