ORA - Oracle Database Configuration File
This is a text file used by the Oracle Database system which is an enterprise level Relational DataBase Management System (RDBMS). It can contain database configuration parameters and can be used to store system wide defaults to fine tune the database performance. ORA file parameters are optional since the Oracle database system already holds default values for required parameters which may be specified in any order. Normal ORA filenames will include the init.ora file for initialization parameters and the tnsnames.ora which is the SQL*Net connection configuration file..