WORKAREA_SIZE_POLICY

Property Description

Parameter type

String

Syntax

WORKAREA_SIZE_POLICY = { AUTO | MANUAL }

Default value

AUTO

Modifiable

ALTER SESSION, ALTER SYSTEM

Basic

No

WORKAREA_SIZE_POLICY specifies the policy for sizing work areas. This parameter controls the mode in which working areas are tuned.

Values

  • AUTO

    Work areas used by memory-intensive operators are sized automatically, based on the PGA memory used by the system, the target PGA memory set in PGA_AGGREGATE_TARGET, and the requirement of each individual operator.

  • MANUAL

    The sizing of work areas is manual and based on the values of the *_AREA_SIZE parameter corresponding to the operation (for example, a sort uses SORT_AREA_SIZE). Specifying MANUAL may result in sub-optimal performance and poor PGA memory utilization.

See Also:

Oracle Database SQL Tuning Guide for information on setting this parameter when a query that calls for a hash join experiences excessive I/O