Why $ORACLE_HOME/bin/dbstart or dbshut does nothing?

On a Single Instance Standalone Database, If you want to stop/start everything that runs on a ORACLE_HOME, you can run this: But why sometimes it does nothing? Well.. .this is where the magic of N or Y at the end of the line in /etc/oratab. Just change to Y and process will stop/start DB and... » read more

Oracle 26ai: Why nothing under v$flash_recovery_area_usage?

We had someone complaining saying why v$flash_recovery_area_usage is empty when DB is in archive log mode? Should not list everything there? This has been replicated on 26ai, but it is valid on previous releases. Answer is simple, log_archive_dest_1 is not set properly, lets replicate on a test db…. Initially ok, right? well….. Since this is... » read more

Oracle 26ai: How to install sample schemas

On this activity we are going to install the sample schemas on a 26ai DBFirst we need to download file from here: https://docs.oracle.com/en/database/oracle/oracle-database/26/comsc/installing-sample-schemas.html unzip and go to directory you want to install: Connect to the PDB and run the install (it will ask for HR password): That’s it! For a list of 26ai articles, go... » read more

Oracle 19c: Steps for modifying SCAN NAME in oracle RAC

On this activity we are going to rename the scan name on a Oracle 19c RAC environment.We don’t want to change the IP’s, just the name. ORIGINAL NAME: CLUSTER-ORA-SCAN2 TARGET NAME: CLUSTER-ORA2-SCAN First, you need to make sure new SCAN NAME is pingable from all RAC servers (to avoid name resolution issues) 1:- Check current... » read more