Initialization Parameters, 133 of 188

OS_ROLES

Parameter type:	Boolean
Parameter class:	Static
Default value:	`FALSE`
Range of values:	`TRUE` \| `FALSE`
`OS_ROLES` determines whether Oracle or the operating system identifies and manages the roles of each username.
`TRUE:` the operating system completely manages the role grants for all database usernames. When a user attempts to create a session, the username's security domain is initialized using the roles identified by the operating system. A user can subsequently enable as many roles identified by the operating system as specified by the parameter `MAX_ENABLED_ROLES`. Revocation by Oracle of roles granted by the operating system are ignored, as are any roles previously granted by Oracle. `FALSE:` Oracle identifies and manages the roles.

See Also: Oracle8i Administrator's Guide and Oracle Advanced Security Administrator's Guide for more information on roles and on setting this parameter. "MAX_ENABLED_ROLES" and "REMOTE_OS_ROLES".