|Oracle® Database Reference
12c Release 1 (12.1)
|PDF · Mobi · ePub|
|Default value||Derived: 2 *
|Range of values||0 to operating system-dependent|
Note:Oracle does not recommend using the
HASH_AREA_SIZEparameter unless the instance is configured with the shared server option. Oracle recommends that you enable automatic sizing of SQL working areas by setting
HASH_AREA_SIZEis retained for backward compatibility.
HASH_AREA_SIZE is relevant to parallel execution operations and to the query portion of DML or DDL statements. It specifies the maximum amount of memory, in bytes, to be used for hash joins.
Oracle Database Concepts for information on hash joins in general