检查一下：_pga_max_size这个参数的值
看是否是这个值过大导致的，如果是这个值可以适当调整这个值
Bug 9506362 - ORA-04030: OUT OF PROCESS MEMORY (QERHJ HASH-JOI,KLLCQAS:KLLSLTBA)

Both bug reports have been suspended due to lack of reproducibility.

调整方式：
alter system set “_pga_max_size”=100M;