pga设定.txt

在oracle中

--设定STATISTICS_LEVEL=TYPICAL才能监控PGA
STATISTICS_LEVEL. Set this to TYPICAL (the default) or ALL; setting this
parameter to BASIC turns off generation of PGA performance advice views.
--查询
SELECT round(PGA_TARGET_FOR_ESTIMATE/1024/1024) target_mb,
   ESTD_PGA_CACHE_HIT_PERCENTAGE cache_hit_perc,
   ESTD_OVERALLOC_COUNT
FROM V$PGA_TARGET_ADVICE;