Explanation/Reference:
Explanation:
* SYS_CONTEXT
This is a twist on the SYS_CONTEXT function as it does not use USERENV. With this usage SYS_CONTEXT queries the list of the user's current default roles and returns TRUE if the role is granted.
Example:
SYS_CONTEXT('SYS_SESSION_ROLES', 'SUPERVISOR')
conn scott/tiger@pdborcl
SELECT sys_context('SYS_SESSION_ROLES', 'RESOURCE')
FROM dual;
SYS_CONTEXT('SYS_SESSION_ROLES','SUPERVISOR')
---------------------------------------------
FALSE
conn sys@pdborcl as sysdba
GRANT resource TO scott;
conn scott/tiger@pdborcl
SELECT sys_context('SYS_SESSION_ROLES', 'RESOURCE')
FROM dual;
SYS_CONTEXT('SYS_SESSION_ROLES','SUPERVISOR')
---------------------------------------------
TRUE