Disadvantage With type 4 drivers, the user needs a different driver for each database. This causes the portability issues. So it is time consuming and raises the performance issues. Unlike the type 3 drivers, it does not need associated software to work. By using this driver we can develop only 2-tier applications a Java program and database. Not good for the Web.
Further, these drivers can be downloaded dynamically. The other implication is that any application using a type 1 driver is non-portable given the binding between the driver and platform. This type of drivers are not recommended for high transaction java applications. This driver uses 3 tier approach i. This driver is fully written in Java and hence Portable. Disadvantage It requires another server application to install and maintain. The middle-tier then translates the request to the database.
Native-Protocal Pure Java Driver Type-4 : Type-4 drivers are supplied by Oracle Corporation by developing into Java language. There are many opportunities to optimize portability, performance, and scalability. Type 4: 100% Pure Java In a Type 4 driver, a pure Java-based driver communicates directly with the vendor's database through socket connection. Hence it requires more maintenance. This kind of driver is extremely flexible, you don't need to install special software on the client or server. Using these standard interfaces and classes, programmers can write applications that connect to databases, send queries written in , and process the results.
This driver is native code and not Java, and is closed source. This driver is native code and not Java, and is closed source. In order to resolve the ClassNotFoundException, we need to add the ojdbc. The type 3 driver typically provides support for features such as caching connections, query results, and so on , load balancing, and advanced system administration such as logging and auditing. Further, these drivers can be downloaded dynamically.
This driver is server-based, so there is no need for any vendor database library to be present on client machines. It is most suitable for the web. It is suitable for the web. Third party vendors implements the java. If the middle-tier server can in turn use Type1, Type 2 or Type 4 drivers. The native code part is targeted at a specific database product i. In terms of architecture, this was 3 tier architecture and uses net protocol for client server communication.
Since the Bridge driver is not written fully in Java, Type 1 drivers are not portable. Type 2 drivers are useful in situations, where a type 3 or type 4 driver is not available yet for your database. This driver is very flexible allows access to multiple databases using one driver. Written completely in , type 4 drivers are thus. Driver: A driver is a software component that provides the facility to a computer to communicate with hardware.
Not good for the Web. The name of the Type-1 driver is Jdbc-Odbc Bridge Driver. They are the most efficient amongst all driver types. The Type-4 driver uses native protocol accepted by the database server to establish a connection between a java program and database. This driver is very flexible allows access to multiple databases using one driver.
In order to work with Type-4 driver, we need to add the classes111. So you have a Java client talking to a Java server and Java Server talking to database. The type 3 driver typically provides support for features such as caching connections, query results, and so on , load balancing, and advanced system administration such as logging and auditing. If your Java application is accessing multiple types of databases at the same time, type 3 is the preferred driver. Type 3 drivers sought to be a 100% Java solution but never really gained much traction. To connect with individual databases, the Java Database Connectivity requires drivers for each database.
But, like Type 1 Driver, it is also not entirely written in java language. They are the most efficient amongst all driver types. It is most suitable for the web. Just make sure to put them into your Java application's classpath when you connect to database from Java program. Disadvantage It requires another server application to install and maintain. The drivers listed in jdbc. Data Source Name is the configuration tool in the current working machine through which the data is passing from java environment to database and database to java environment.