Search not more ! here it is

01.  First you might want to, download the proper JDBC Driver from the Sybase website. download the ZIP file and find the jconn.jar file which is located in the \ jConnect-6_0\classes folder.
02.  Place the jconn.jar file in your {Kettle Folder}\libext\JDBC\ folder

Kettle installation\libext\JDBC folder

And now the database settings.

03.  Start Kettle, and bring up your DB settings window, and configure is as follows.

Connection Type : Generic database
Access :  Native(JDBC)

And under DB access settings

Custom Connection URL     : jdbc:sybase:Tds:<HOST ADDRESS>:<PORT NUMBER>/<DB NAME>
Custom Driver Class Name : com.sybase.jdbc3.jdbc.SybDriver
User Name : <USER NAME>
Password                                             : <DB PASSWORD>

Yup that should be it ! now test your connection, if you did everything correct, Wolah !!

Unexpected error :
org.pentaho.di.core.exception.KettleDatabaseException:
Couldn’t get row from result set

and further

Unexpected error closing query : org.pentaho.di.core.exception.KettleDatabaseException:
Couldn’t close query: resultset or prepared statements
Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.net.SocketException
MESSAGE: Connection reset STACKTRACE:

java.net.SocketException: Connection reset

This is simply because, after long time in execution the MySQL server get confused at somewhere in the corner and decides to not to feed the rows back to JDBC driver. As I found in MySQL massage board placing SQL_NO_CACHE next to your SELECT keyword (SELECT SQL_NO_CACHE * FROM users) should solve the issue.

I will confirm, if this works since my script is still running, so far so good!

To be verified….

REF :: http://forums.mysql.com/read.php?39,203407,217196#msg-217196