Ora Training Blog

ORA Training would like to bring to your notice that a lot of bloggers are copying our content AS IS without our permission and taking undue advantage of it. Please beware of such blogs and companies. Update: We have identified so many other blogs copying our content that now it seems worthless listing them all since they use our images […]

Often we encounter errors that a particular required port is already being used by another process. The steps to find out which process is using a particular port number is relatively easy in Linux but it can be a bit tricky on Solaris. Let us see how to find process PID from port number 1. For Linux Operating System […]

Solution for ORA-04023 error: Some times you may notice that after recreation of some views or procedures, you may start getting ORA-04023 errors. ORA-04023: Object could not be validated or authorized You may also see ORA-00001 errors in your alert log file during the same time. If you have RAC database and if you are getting ORA-04023 error only […]