Why my Oracle Database is not dynamically registered with the Listener?

Here, we have couple of puzzles, they are mainly:1- Why the database services are dynamically registered with non-default listener while the local_listener definition doesn't exist in the tnsnames.ora file?2- If you do some changes in the tnsnames.ora file related to the local_listener, are these changes dynamically reflected to the database and listener? or do you … Continue reading Why my Oracle Database is not dynamically registered with the Listener?

Oracle Listener 19c Starting Error

While starting a newly created Oracle 19c Listener, I received the following errors; C:\Users\win>lsnrctl start LSNR19C LSNRCTL for 64-bit Windows: Version 19.0.0.0.0 - Production on 06-SEP-2019 13:58:09 Copyright (c) 1991, 2019, Oracle. All rights reserved. Starting tnslsnr: please wait… Unable to OpenSCManager: err=5 TNS-12560: TNS:protocol adapter error TNS-00530: Protocol adapter error The listener configuration file … Continue reading Oracle Listener 19c Starting Error

Oracle Exadata Log Files

When time came to troubleshooting , we started to search and review the log files. At stress time, one may waste time searching about the location of these log files. So, it may be a good practice to document the location of your environment log files, so as to reach them quickly when you need … Continue reading Oracle Exadata Log Files