How to view instance names in oracle

Programmers may encounter Oracle url invalid issues when connecting to oracle. The following small series will teach you how to view the Instance name in oracle to help you solve this problem.

Oracle displays the instance names in two configuration files: listener. ora and tnsnames. ora. Path: D: \ Oracle9i_9.2 \ network \ admin, which indicates the Instance name and port number of the remote connection, that is, SERVICE_NAME. In addition, you can use SQL statements to query instance names in oracle. Log on to the system as an administrator and enter the "show parameter service_name;" command.

The preceding Method for viewing the Instance name in oracle is just a summary of my personal experience. I hope you can give some advice on the shortcomings.