I got the below issue while starting the database. Below issue occurred as I have deleted the datafiles from server level and not I am unable to start the datafile.SQL> startupORACLE instance... Read more »

In this blog, We are going to see how to change DBTime zone in multitenent database. Oracle recommends setting the database time zone to UTC (0:00), as no conversion of time zones... Read more »

Oracle 12C Database installationResponse file location/data/database/response/dbca.rsp/data/database/response/netca.rsp/data/app/oracle/product/12.2.0.1/assistants/dbca/dbca.rspvi /tmp/dbca.rsp to install databasegdbName=prim2sid=primcreateAsContainerDatabase=truenumberOfPDBs=1pdbName=pdbprim2pdbAdminPassword=Oracle1234templateName=General_Purpose.dbcsysPassword=Oracle1234systemPassword=Oracle1234emConfiguration=DBEXPRESSemExpressPort=5500dbsnmpPassword=Oracle1234datafileDestination=/data/app/oracle/oradatarecoveryAreaDestination=/data/app/oracle/flash_recovery_areastorageType=FScharacterSet=AL32UTF8nationalCharacterSet=AL16UTF16listeners=LISTENERsampleSchema=truedatabaseType=OLTPautomaticMemoryManagement=TRUEmemoryPercentage=40./dbca -silent -createDatabase -responseFile /tmp/dbca.rsp Read more »
Primary SideSQL> select status,instance_name,database_role,protection_mode from v$database,v$instance; STATUS INSTANCE_NAME DATABASE_ROLE PROTECTION_MODE------ ------------- ------------- --------------------OPEN prim PRIMARY MAXIMUM PERFORMANCEStandby SideSQL> select status,instance_name,database_role,protection_mode from v$database,v$instance; STATUS INSTANCE_NAME DATABASE_ROLE PROTECTION_MODE------ ------------- ------------- --------------------OPEN stand STANDBY MAXIMUM... Read more »