Oracle SQL_TRACE使用小结

一、关于基础表
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Oracle
10G之前，启用AUTOTRACE功能需要手工创建plan_table表，创建脚本为$ORACLE_HOME/rdbms/admin
/utlxplan.sql。但在10g中，已经默认创建了PLAN_TABLE$的基表，并以public用户创建了相应的同义词PUBLIC。ITPUB个人空间DR#IlHrT
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SQL> select owner,object_name,OBJECT_TYPE from dba_objects where object_name like '%PLAN_TABLE%';
OWNER                          OBJECT_NAME          OBJECT_TYPE
------------------------------ -------------------- -------------------
SYS                            SQL_PLAN_TABLE_TYPE  TYPE
PUBLIC                         SQL_PLAN_TABLE_TYPE  SYNONYM
SYS                            PLAN_TABLE$          TABLE
PUBLIC                         PLAN_TABLE           SYNONYM
EXFSYS                         EXF$PLAN_TABLE       TABLE
SQL> select * from dba_synonyms where SYNONYM_NAME like '%PLAN_TABLE%';
 
OWNER          SYNONYM_NAME       &nbs