What is type 1,2,3 or 4 of a JDBC Driver?

Question

To connect to a database using Java, most of us use JDBC API.

We normally include driver like ojdbc14 (Intended for Java 1.4) in class path, and in pro

Answer 1

In simple terms

Type1:(JDBC-ODBC Bridge driver)

->it uses ODBC

->converts JDBC calls into ODBC calls

->its disadvantages are you need to install ODBC or you can say it depends on ODBC(given by microsoft)

->its performance is low because it converts JDBC calls into ODBC calls

Type2(Native API)

->uses client side libraries of database

->converts JDBC calls into native calls of the database Api

->gives better performance than JDBC-ODBC(Type1) because it does not depends or it does not use ODBC

Type3(Network Protocol)

->it uses Application Server(Middleware)

->server converts the jdbc calls into vendor specific database protocol

->Network support is required on client side

->Maintenance of Network Protocol driver becomes costly

Type4(Thin)

->interacts dierectly with database

->does not require any libraries

->written by database vendors ,hence they are best to use