Thread: JDBC drivers

hi people,
trying to get out of WC hang-over and getting into JAVA, i have started with this new topic JDBC. Well even if there are lots of tutorials available on JDBC, i can't really find an appropiate answer to my questions. here are my questions below...

1. what does the JDBC drivers do? explain the flow of instructions(queries) from java programs to database then back to java.(donot have to explain the types of drivers)

2. what does it mean by "Drivers are available from third party or database product vendors "..??
i thought jdbc drivers were available in java.sql packages.

3. what about the drivers of the database software i'm using(suppose oracle)? when they get into action?

if you guys can provide a schematic diagram of the query flow b/w
<java prog>---<jdbc> ---<database>
then it will be really good for me.

thank you..!!!
bye...!!!

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