Hi Firoz,
Welcome to Javaranch,
Please do not post the
same in different forums,
I want to be a Database programmer using ORACLE which part of Java I have to mainly focus to improve my skills
I would say,
JDBC.
JDBC helps you to write java applications that manage these three programming activities:
Connect to a data source, like a databaseSend queries and update statements to the databaseRetrieve and process the results received from the database in answer to your query best point to start.. form
Sun Provided JDBC Tutorial.
hope it helps..