![]() Oracle Application Express APEX_040200 FLOWS_FILES SQL> select comp_name, schema, other_schemas from dba_registry COMP_NAME SCHEMA OTHER_SCHEMAS The view DBA_REGISTRY provides some information how these users are connected to each other and to which feature they belong: SQL> select username from dba_users where oracle_maintained='Y' order by 1 Next question is: how are these users connected to database features and can the users be dropped – and if yes, how?Īfter installing a database with all options, you’ll get a long list of ORACLE_MAINTAINED users: None of the fixed object tables have had stats collected.Some time ago I wrote on ORACLE_MAINTAINED database users in Oracle 12c. (AUTOFIXUP) Gather statistics on fixed objects prior the upgrade. Recommends gathering dictionary statistics in the last 24 hours beforeįor information on managing optimizer statistics, refer to the 12.2.0.1Ģ. (AUTOFIXUP) Gather stale data dictionary statistics prior to databaseĮXECUTE DBMS_STATS.GATHER_DICTIONARY_STATS ĭictionary statistics do not exist or are stale (not up-to-date).ĭictionary statistics help the Oracle optimizer find efficient SQLĮxecution plans and are essential for proper upgrade timing. Oracle Component Upgrade Action Current Status Report generated by Oracle Database Pre-Upgrade Information Tool Version View Preupgrade ~]$ cat /home/oracle/CID/preupgrade/preupgrade.log Log into the database and execute the postupgrade complete: ~]$Ĥ. Log into the database and execute the preupgrade After the upgrade: home/oracle/CID/preupgrade/postupgrade_fixups.sqlĮxecute fixup scripts as indicated below: home/oracle/CID/preupgrade/preupgrade.log /home/oracle/CID/preupgrade/preupgrade_fixups.sql The Oracle base has been set to ~]$ /u01/app/oracle/product/12.2.0/dbhome_1/jdk/bin/java -jar /u01/app/oracle/product/19.0.0/dbhome_1/rdbms/admin/preupgrade.jar FILE DIR /home/oracle/CID/preupgrade u01/app/oracle/product/12.2.0/dbhome_1/jdk/bin/java -jar /u01/app/oracle/product/19.0.0/dbhome_1/rdbms/admin/preupgrade.jar TERMINAL TEXT Set COMPATIBALE parameter value to 19.0.0 Copy init and password files from 12c to 19c dbs homeĢ7. Create Flashback Guaranteed Restore Pointġ5. Check Compatibility Before Upgrading Oracle Databaseġ3. Upgrade Oracle Database Manually from 12.2.0.1 to 19c (NON-CDB)Ġ. How to START/STOP PostgreSQL 13 on Linux.Install PostgreSQL 13 using yum Repository on Linux.Add Targets Manually on EM Cloud Control 13c.Rolling Upgrade With an Existing Physical Standby Database.Upgrade Oracle Database Manually from 12.2.0.1 to 19c.Upgrade Oracle Database from 12.2.0.1 to 19c using DBUA.How to Change MAX_STRING_SIZE on Physical Standby Environment.Create Non-CDB on Oracle 12c using DBCA (GUI).CREATE NON-CDB ON ORACLE 12C IN SILENT MODE.CREATE NEW PDB BY CLONING AN EXISTING PDB.Install 12.2 Database Binaries in silent mode. ![]() Install Oracle GoldenGate 19C for Database 19C. ![]()
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