Questions tagged [tns]

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I want to delete connections in tnsnames.ora. I need to figure out which ones are currently in use, so that I don't delete them mistakenly

I'm using Oracle 12c in Debian 8 (on a vm) This question is for educational purposes only. I'm not using any production servers, so anything that you can tell me won't have consecuences To ...
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Why is tnsping not reliable from ports 20, 21, 22? [closed]

I think it's not reliable because those ports are used for FTP, SSH and SFTP but I am not sure that's the correct response in respect for Oracle DBA
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ora-12514 Error While Connecting local Oracle EXPRESS EDITION 11

I have recently installed Oracle XE 11 on my local machine and then installed SQL Developer. But when I try to create a new connection (for my localhost) or add from 'database detected local XE' it ...