1. Database Reference
  2. Initialization Parameters
  3. Initialization Parameters
  4. DB_UNRECOVERABLE_SCN_TRACKING

1.99 DB_UNRECOVERABLE_SCN_TRACKING

DB_UNRECOVERABLE_SCN_TRACKING enables or disables the tracking of unrecoverable (NOLOGGING) direct-path INSERT and direct-path load operations.

Property Description

Parameter type

Boolean

Default value

true

Modifiable

ALTER SESSION, ALTER SYSTEM

Modifiable in a PDB

Yes

Range of values

true | false

Basic

No

Oracle RAC

Multiple instances must have the same value

When the value is set to true, updates are made to the controlfile that maintains the V$DATAFILE.UNRECOVERABLE_CHANGE# and V$DATAFILE.UNRECOVERABLE_TIME columns. When the value is set to false, updates are not made to the controlfile. Setting this parameter to false may improve performance of direct-path NOLOGGING operations.