SQL> SELECT OBJECT_NAME FROM DBA_OBJECTS WHERE STATUS <> 'VALID';
no rows selected
SQL> @?/rdbms/admin/spcreate.sql
SQL> SELECT OBJECT_NAME FROM DBA_OBJECTS WHERE STATUS <> 'VALID';
OBJECT_NAME
--------------------------------------------------------------------------------------------------------------------------------
DBMS_UTILITY
DBMS_PCLXUTIL
DBMS_JOB
DBMS_STATS
DBMS_PRVTAQIP
DBMS_AQADM_SYS
DBMS_IREFRESH
DBMS_SNAPSHOT
UTL_RECOMP
DRIDDLR
创建PERFSTAT会invalid一些对象,如果程序中存在对这些对象的并行调用,可能导致 'library cache lock' 和'library cache pin'
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