HASH_AREA_SIZE

HASH_AREA_SIZE specifies the maximum amount of memory, in bytes, to be used for hash joins.

Property Description
Parameter type Integer
Default value Derived: 2 * SORT_AREA_SIZE
Modifiable ALTER SESSION
Modifiable in a PDB No
Range of values 0 to operating system-dependent
Basic No

Note: Oracle does not recommend using the HASH_AREA_SIZE parameter unless the instance is configured with the shared server option. Oracle recommends that you enable automatic sizing of SQL working areas by setting PGA_AGGREGATE_TARGET instead. HASH_AREA_SIZE is retained for backward compatibility.

HASH_AREA_SIZE is relevant to parallel execution operations and to the query portion of DML or DDL statements.

See Also: