Oracle SQL Developer How to configure TNS

Oracle's SQL Developer 4.0.3.16 is installed, but when connecting to a database, if you choose a connection type of "TNS" and cannot get a network alias, how do I set up to access the TNS file?

The simplest way to set the TNS_ADMIN environment variable to point to the directory where the Tnsnames.ora file is located is as follows

C:\users\konglb>set Tns_names=c:\oracleclient\oracle32\product\11.2.0\client_1\network\admin

C:\users\konglb>echo%tns_admin%

C:\OracleClient\Oracle32\product\11.2.0\client_1\network\admin

You can also set environment variables by setting the

Oracle SQL Developer How to configure TNS