The user ID to be stored in the database. This value sets the OSUSER value in the V$SESSION table on the server. This value is used by the client information feature.
Valid Values
-1 | string
where:
string
is a valid user ID.
Behavior
When set to -1, the driver uses the userid of the user that is currently logged onto the client.
If a value for this option is not specified, the driver uses name of the user that is currently logged into the OS.
This connection option can affect performance.