Install Oracle Client 12c on Windows 10 – INS-20802: Oracle Net Configuration Assistant failed

Hello all!
Some days ago a client reach me because he was facing this error when installing Oracle Client on Windows 10:


Researching on topic found this.

Seems Oracle client requires MSVC 2010 redistributable to proceed Oracle Net Configuration step.
After this requested client to install “Microsoft Visual C++ 2010 Redistributable Package” on server. And issue solved! 🙂

The download of Package can be performed from here:

Hope it helps you!
See you next week!

Windows: “ORA-12514” After Database Migration/Moving (Using DNS Alias)

It’s usual to use DNS Aliases pointing to scanlistener. This way, we create an abstraction/layer bewteen clients/application and the cluster where database is. Some activities like tierization/consolidation and database moving between clusters (converting to Pluggable, etc), would be much more transparent.

Buuuut, if after a database migration, all the services online and listening, your client is stucking with:

ORA-12514: TNS:listener does not currently know of service requested in connect descriptor

Remmember you are using DNS to make this layer. Have you tried to flush DNS Cache?
I faced this problem with a Windows Application. The solution:

C:\Users\matheus_boesing>ipconfig /flushdns
Windows IP Configuration
Successfully flushed the DNS Resolver Cache.

All working fine after that. 🙂