{"id":279,"date":"2020-11-25T15:34:44","date_gmt":"2020-11-25T07:34:44","guid":{"rendered":"http:\/\/www.821121.com\/?p=279"},"modified":"2020-11-25T15:34:44","modified_gmt":"2020-11-25T07:34:44","slug":"%e6%96%b0%e7%89%b9%e6%80%a7%ef%bc%9acdb-pdb%e7%9a%84%e7%bb%b4%e6%8a%a4%e5%91%bd%e4%bb%a4%ef%bc%9a%e4%bf%ae%e6%94%b9pdb%e7%b3%bb%e7%bb%9f%e5%8f%82%e6%95%b0%ef%bc%8c%e4%b8%8d%e5%bd%b1%e5%93%8dcdb","status":"publish","type":"post","link":"http:\/\/www.821121.com\/?p=279","title":{"rendered":"\u65b0\u7279\u6027\uff1aCDB\/PDB\u7684\u7ef4\u62a4\u547d\u4ee4\uff1a\u4fee\u6539PDB\u7cfb\u7edf\u53c2\u6570\uff0c\u4e0d\u5f71\u54cdCDB\u4e0e\u5176\u4ed6\u7684PDB"},"content":{"rendered":"

\u4fee\u6539PDB\u7cfb\u7edf\u53c2\u6570\uff0c\u4e0d\u5f71\u54cdCDB\u4e0e\u5176\u4ed6\u7684PDB<\/p>\n

SQL> set linesize 200\nSQL> show parameter optimizer_use_sql_plan_baselines\n\nNAME                                 TYPE                              VALUE\n------------------------------------ --------------------------------- ------------------------------\noptimizer_use_sql_plan_baselines     boolean                           TRUE\nSQL> show pdbs\n\n    CON_ID CON_NAME                       OPEN MODE  RESTRICTED\n---------- ------------------------------ ---------- ----------\n         2 PDB$SEED                       READ ONLY  NO\n         3 PDB1_WHS                       READ WRITE NO\n         4 PDB2_WHS                       MOUNTED\n         5 PDB3_WHS                       READ WRITE NO\nSQL> alter session set container=PDB1_WHS;\n\nSession altered.\n\nSQL> show parameter optimizer_use_sql_plan_baselines\n\nNAME                                 TYPE                              VALUE\n------------------------------------ --------------------------------- ------------------------------\noptimizer_use_sql_plan_baselines     boolean                           TRUE\n\nSQL> alter system set optimizer_use_sql_plan_baselines=false scope=both;\n\nSystem altered.\n\nSQL> show parameter optimizer_use_sql_plan_baselines;\n\nNAME                                 TYPE                              VALUE\n------------------------------------ --------------------------------- ------------------------------\noptimizer_use_sql_plan_baselines     boolean                           FALSE<\/code><\/pre>\n
\u8fd9\u91cc\u53ef\u4ee5\u770b\u5230optimizer_use_sql_plan_baselines\u5df2\u7ecf\u662ffalse\uff0c\u770b\u770b\u5176\u4ed6pdb\u4e0eCDB\u7684\u53c2\u6570\u662f\u4ec0\u4e48\u503c<\/p>\n
SQL> alter session set container=PDB3_WHS;\n\nSession altered.\n\nSQL> show parameter optimizer_use_sql_plan_baselines;\n\nNAME                                 TYPE                              VALUE\n------------------------------------ --------------------------------- ------------------------------\noptimizer_use_sql_plan_baselines     boolean                           TRUE\nSQL> exit\nDisconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production\nVersion 19.3.0.0.0\n[oracle@cat1 ~]$ sqlplus \/ as sysdba\n\nSQL*Plus: Release 19.0.0.0.0 - Production on Sun May 1 21:55:53 2005\nVersion 19.3.0.0.0\n\nCopyright (c) 1982, 2019, Oracle.  All rights reserved.\n\nConnected to:\nOracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production\nVersion 19.3.0.0.0\n\nSQL> set linesize 200\nSQL> show parameter optimizer_use_sql_plan_baselines\n\nNAME                                 TYPE                              VALUE\n------------------------------------ --------------------------------- ------------------------------\noptimizer_use_sql_plan_baselines     boolean                           TRUE\nSQL> <\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
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