svn or Subversion is a kind of repository. And the repository is a kind of file server. But the special thing with the svn is that it remembers every change ever written to it-every change to every file, and even changes to the directory tree itself, such as addition, deletion, and rearrangement of files and […]

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Login to the postgres user.

su
su - postgres

How to start the database?

pg_ctl start -D /usr/local/pgsql/ejb3db

How to get the sql prompt?

psql databasename username
e.g. psql ejb3db ranjan

How to command now?

ejb3db=> \d

The above command describes table, index, sequence, or view.

ejb3db=> \dt

The above command will list out all tables.

ejb3db=> \d table-name

The above command will show all the schema level details […]

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Why we have common commands for two or more things?
When I have to copy something from the console of the JBoss server I do Ctrl+C, as I have the habit of “Ctr+c” for copying. Errrrrrrrrrr………………… and the server stops.

addthis_url = ‘http%3A%2F%2Franjankumar.com%2F2008%2F07%2F14%2Fcontrol-c%2F’;
addthis_title = ‘Control+C’;
addthis_pub […]

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It is a stateless protocol.
It uses the services of TCP on well-known port 80.
HTTP Transaction

Request and Response Messages

Request and Status Lines

Request Type (GET, HEAD, POST, PUT, TRACE, CONNECT, OPTION)

URL:

Version: HTTP 1.1
Status Code
Status Phrase

Code
Phrase

100
Continue

101
Switching

200
OK

201
Created

202
Accepted

204
No Content

301
Moved Permanently

302
Moved Temporarily

304
Not Modified

400
Bad Error

401
Unauthorized

403
Forbidden

404
Not Found

405
Method not allowed

406
Not acceptable(Server Erorr)

500
Internal Server Error

501
Not Implemented

503
Service Unavailable

Header: The header exchanges additional information between the […]

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UDDI Implementation Comes in Two parts:
1) First part helps you to build the Service Directory
2) Second part helps you to access the Service Directory
1) First Parts helps you to build the Service Directory
jUDDI from Apache is available for this purpose.
Persistence (jUDDI DataStore)
jUDDI also requires an external datastore in which to persist the registry […]

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