Four types of JDBC drivers

After downloading the JDBC driver on the internet, I often see Type4 as the vendor's standard. Recently, I have reviewed the data and it turns out to be the JDBC standard defined by SUN.

Type 1 JDBC-ODBC Bridge
Later than JDK, it is part of the sun. jdbc. odbc package.
Application ---> JDBC-ODBC Bridge (Type1 jdbc driver) ----> JDBC-ODBC Library ---> ODBC Driver --> Database
It is suitable for fast prototype systems and does not provide JDBC-driven databases such as access (a favorite of small websites)

Type2 JAVA to Native API
Use the local database provided by the developer to directly communicate with the database.
Application ---> JDBC Driver (Type2 jdbc driver) ----> Native Database library ----> Database
The performance is slightly better than that of type1.

Type3 Java to net
Application ---> Jdbc Driver (Type3 jdbc driver) -----> java middleware ---> JDBC Driver ----> Database
It has the maximum flexibility, which is usually provided by non-database vendors and is the smallest of the four types.

Type4 JAVA to native dababase
Application ---> Jdbc driver (type4 jdbc driver) -----> database engine ---> database
With the highest performance, you can use your local protocol to directly communicate with the database engine and be able to assemble on the Internet.