Question { Logisoft, 21521 }

What is thin driver and thick driver. why it is called so?

Answer

Both these drivers are used to connect your java program to
database(oracle).

Thin drivers (comes under type 4 drivers) are completely
written in java.You can connect to oracle without oracle
client installed on ur pc.
Thick drivers(comes under type 1 or i think 2,3 also)are not
written completely in java.You need oracle client(like odbc
driver,jdbc-odbc bridge drivers etc)for communication
between java program and oracle.

As thin driver's implementation is smaller as compared to
thick drivers,so they are are called as such i think.