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Thank you for accepting the OTN License Agreement; you may now download this software. See the for more information about Instant Client. The are at the foot of the page. Client-server version interoperability is detailed in.
For example, Oracle Call Interface 18.3 can connect to Oracle Database 11.2 or later. Some tools may have other restrictions.
Instant Client RPMs are also available without click-through from for.
May 9, 2016 - First you have to tell Oracle to use the tnsnames.ora file at all. For this open/create file sqlnet.ora and insert row like this: NAMES. Nov 14, 2013 - Cons: tnsping will also tell you hostname and port for the database. But SQLPLUS will use the same TNS setup, so that way you are testing.
Apparently oracle removed tnsping from the instant client 11.2.0.2. This very handy command to do some troubleshooting is crucial in our environment so we tried to add it from a full blown oracle client installation. In order to add tnsping to the instantclient you must copy the tnsping command to the bin directory of the instant client. However you also need to copy $ORACLEHOME/network/message directory to the instant client directory in the network subdir also if you want to make use of ldap you need to copy the $ORACLEHOME/ldap directory to you instant client directory. And $ORACLEHOME/lib directory to your instant client directory.