title: Oracle Database 12c tnsnames.ora file
body: <p>I am new in Oracle 12c. In installation steps I need to add service orclpdb in tnsnames.ora file. Why I need to add this service?</p>
  
  <pre><code>ORCLPDB =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
      (CONNECT_DATA =
        (SERVER = DEDICATED)
        (SERVICE_NAME = orclpdb)
      )
    )
  </code></pre>