有同学在T.askmaclean.com上求助Shared Pool里SubPool子分区问题,这里我们来搞清楚_kghdsidx_count 与 subpool 以及subpool中的分区( 实际是duration)的关系:  
SQL> select * from v$version;

BANNER
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Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bi
PL/SQL Release 10.2.0.5.0 - Production
CORE