ORA-06580: Hash Join ran out of memory while keeping large
rows in memory



ORA-06580: Hash Join ran out of memory while keeping large rows in memory..

Answer / guest

Cause: Hash Join reserves 3 slots (each slot size =
DB_BLOCK_SIZE * HASH_JOIN_MULTIBLOCK_IO_COUNT) for a row. If
a row is larger than that, this error will be raised.

Action: Increase HASH_JOIN_MULTIBLOCK_IO_COUNT so that each
joined row fits in a slot. HASH_AREA_SIZE may also need to
be increaed.

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