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

The "type" refers to how the driver implements the API. The four types are:

Type 1: JDBC-ODBC Bridge driver (Bridge)

Type 2: Native-API/partly Java driver (Native)

Type 3: AllJava/Net-protocol driver (Middleware)

Type 4: All Java/Native-protocol driver (Pure)

They will have different performance characteristics. See this link for a more detailed review.