tnsnames.ora file contains the Databases and the their description (host + port).
tnsnames.ora
Databases
host
port
Is it possible to esta
Starting from 18.3, TNS_ADMIN that provides the location of the tnsnames.ora file can be passed as part of the connection URL. Please note the syntax.
jdbc:oracle:thin:@jdbctest_medium?TNS_ADMIN=/test/cloud/network