| Property | Description | 
|---|---|
| Parameter type | Integer | 
| Default value | 1 or CPU_COUNT/ 8, whichever is greater | 
| Modifiable | No | 
| Range of values | 1 to 20 | 
| Basic | No | 
DB_WRITER_PROCESSES is useful for systems that modify data heavily. It specifies the initial number of database writer processes for an instance.
See Also:
Oracle Database Concepts for more information on the database writer processes
Oracle Database Performance Tuning Guide for information on setting the DBWn parameters