The difference between the service name and sid

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• I am using oracle 11g express edition, how I can change the service name and the port number?

  I am using oracle 11g express edition, how I can change the service name and the port number?

  I am using oracle 11g express edition, how I can change the service name and the port number?

  What do you mean by "port number"? HTTP port (usually 8080), or listening port (normally 1521)?

  To change the name of the service, you can use (as a DBA or SYSDBA)

  SQL > alter system set service_name = '';

• the service name and the name of the database are different.

  Hello
  
  I had created a database with name PROD, latter I renamed DB HAVE according to the request of management.
  
  But I notice the following things.
  
  1 OS ORACLE_SID variable level is always PROD. (.bash_profile also I have this entries)
  2. starting at sql prompt DB_NAME is HAVE.
  3 al ' service_name watch listener and instance name is PROD.
  
  can someone please explain me, why oracle behaves like that.
  Our applications work correctly with any questions so far.
  
  
  [oracle@qual ~] $ echo $ORACLE_SID
  PROD
  [oracle@qual ~] $ sqlplus "/ as sysdba".
  
  SQL * more: Release 10.2.0.1.0 - Production on Tue Mar 5 10:35:01, 2013
  
  Copyright (c) 1982, 2005, Oracle. All rights reserved.
  
  Connect to an instance is idle.
  
  SQL > startup
  ORACLE instance started.
  
  Total System Global Area 608174080 bytes
  Bytes of size 1220868 fixed
  209719036 variable size bytes
  394264576 of database buffers bytes
  Redo buffers 2969600 bytes
  Mounted database.
  Open database.
  SQL > select name from v$ database;
  
  NAME
  ---------
  HAVE
  
  SQL >! lsnrctl status
  
  LSNRCTL for Linux: Version 10.2.0.1.0 - Production on March 5, 2013 10:38:30
  
  Copyright (c) 1991, 2005, Oracle. All rights reserved.
  
  Connection to (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST=qual.com) (PORT = 1521)))
  STATUS of the LISTENER
  ------------------------
  Alias LISTENER
  Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production
  Start date March 5, 2013 10:36:54
  Uptime 0 days 0 hours 1 minutes 35 seconds
  Draw level off
  Security ON: OS Local Authentication
  SNMP OFF
  Parameter Listener of the /u001/app/oracle/product/10.2.0/network/admin/listener.ora file
  The listener log file /U001/app/Oracle/product/10.2.0/network/log/listener.log
  Summary of endpoints listening...
  (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp)(HOST=qual.com) (PORT = 1521)))
  (DESCRIPTION = (ADDRESS = (PROTOCOL = ipc) (KEY = EXTPROC0)))
  Summary of services...
  Service 'PLSExtProc' has 1 instance (s).
  Instance of 'PLSExtProc', status UNKNOWN, has 1 operation for this service...
  Service "HAVE" has 1 instance (s).
  Instance of "PROD", State LOAN, has 2 managers of this service...
  Service 'PRODT_XPT' has 1 instance (s).
  Instance of "PROD", State LOAN, has 2 managers of this service...
  The command completed successfully
  
  SQL > exit
  Disconnected from the database to Oracle 10 g Enterprise Edition Release 10.2.0.1.0 - Production
  With partitioning, OLAP and Data Mining options
  [oracle@qual ~] $

  This last I changed the name of DB to HAVE

  Change the DB_NAME is not the ORACLE_SID. You must manually change the ORACLE_SID.

  Stop the database instance.
  Copy $ORACLE_HOME/dbs/initPROD.ora to $ORACLE_HOME/dbs/initPRODT.ora. (I assume that DB_NAME has already been upgraded IN the initPROD.ora)
  Change your ORACLE_SID of PROD WERE and disconnect and connect again.
  Make sure that your ORACLE_SID is now HAVE and that $ORACLE_HOME/dbs/initPRODT.ora
  Now start the database instance

  Hemant K Collette

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  On Thu, 20 Sep 2012 19:56:47 + 0000, STEVE-5 says:

  Can someone tell me, what is the difference between windows 7 OEM and sales vs retail?

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  Although if you get a generic OEM full version, it contains the
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