Returns the role or roles that are active for the user currently logged in.
If you are running in distinct-roles mode, exactly 1 role is active. The name of this role is retured.
If you are running in merged-roles mode, at least 1 role is active. If 1 role is active, the name of this role is returned:
If more than 1 role is active, the names of the active roles are shown in brackets and separated by commas:
This is a convertible function resolved by USoft and thus supported on all RDBMS platforms.