Yesterday to a PLSQL installation program, but the connection has been an error when PLSQL, login popup not logged out blank popup window very collapse, don't bit error information feedback, found online a lot of ways, finally gave me a little inspiration,
First reference http://www.jb51.net/article/53545.htm this setting,

Basically see two environment variables,
One is the TNS_ADMIN the value of this variable is tnsnames. Ora file directory
Is another ORACLE_HOME this value is the installation directory, PLSQL I is free to install, so don't need to configure the variable, if this variable is also want to delete, delete the best backup first, in order to restore,
Just because I was from installation, but ORACLE_HOME value, so the login error not logged out

CodePudding user response:

Environment variable is not match well

CodePudding user response:

Check the listener. Ora and tnsnames. Ora configuration

CodePudding user response:

A few minutes with a client,

CodePudding user response:

I this is win 10 have appeared in this case, you as an administrator when open the pl/up sqlplus opened, if not yet, is your environment variable is not configured, check the listener. Ora and tnsnames. Ora configuration

CodePudding user response:

I this is win 10 have appeared in this case, you as an administrator when open the pl/up sqlplus opened, if not yet, is your environment variable is not configured, check the listener. Ora and tnsnames. Ora configuration