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simple question!!!

 
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hi all
could anybody please tell me the difference between four types of JDBC drivers
regards
namita
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Copy pasting from JDBC 3.0 Specification:
(See if you can make out any meaning :-) ).
9.1 Types of Drivers
There are many possible implementations of JDBC drivers. These implementations
are categorized as follows:
Type 1 � drivers that implement the JDBC API as a mapping to another data
access API, such as ODBC. Drivers of this type are generally dependent on a
native library, which limits their portability. The JDBC-ODBC Bridge driver is an
example of a Type 1 driver.
Type 2 � drivers that are written partly in the Java programming language and
partly in native code. These drivers use a native client library specific to the data
source to which they connect. Again, because of the native code, their portability
is limited.
Type 3 � drivers that use a pure Java client and communicate with a middleware
server using a database-independent protocol. The middleware server then communicates the client�s requests to the data source.
Type 4 � drivers that are pure Java and implement the network protocol for a specific data source. The client connects directly to the data source.

[This message has been edited by Amit Agrawal* (edited September 20, 2001).]
 
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