Here I list their differences including features, pros and cons for you to evaluate which one should be used for your clients: Oracle Client Features… Read More »Oracle Client vs Instant Client
ORA-12541 and TNS-12541 ORA-12541 is the same as TNS-12541, they all indicate that the listener is not running according to your specified destination. Let’s see… Read More »How to Resolve ORA-12541: TNS:no listener
ORA-12547 and TNS-12547 ORA-12547 is the same as TNS-12547, they all indicate that the ability of communication between the client and the listener is interrupted… Read More »How to Resolve ORA-12547: TNS:lost contact
sqlplus, tnsping or lsnrctl Hangs I can't cover all situations in this post, but I have some cases to share with you. Those hanging all… Read More »Why Tnsping Hang
TNSPING Utility tnsping is a network testing utility provides by Oracle to test the availability of listener through the substrate of Oracle Net. Somebody may… Read More »TNSPING, How and Why
Message 3511 not found Recently, I upgraded my PC from Windows XP to Windows 7 at my working place. For reusing installed Oracle Client 9.2.0,… Read More »How to Resolve Message 3511 not found