Code for updating database in servlet through user
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From an Oracle 8i perspective it provides a way for Java applications to call SQL and PL/SQL.In other words it is a way to execute SQL statements and also call stored database procedures.
There are four types of drivers defined by JDBC as follows: Oracle 8i provides four types of JDBC drivers, namely, thin drivers, OCI drivers, server-side thin drivers, and server-side internal drivers.One important feature of JDBC is location independence.Java programs with database access can be written and deployed as an application or as a Web-based applet.Bulusu Lakshman describes Oracle database access in Java using JDBC.Learn the the details, from the querying and returning of resultsets to executing DML from the Oracle 8i database.Java applets are good candidates that make use of this driver. This is a native-API Type 2 driver that is suited for client-server Java applications.
It is Oracle platform-specific and requires an Oracle client installation.
The ease of development, robustness, and security of Java programs makes it a good choice for writing database applications in Java.
Moreover, the early compile-time checking and dynamic runtime checking goes in sync with the dynamic SQL interface of JDBC for Java.
This driver converts JDBC calls into calls to the Oracle Call Interface using native methods.
These calls are then sent to the Oracle database server using Net8.
These drivers support protocols such as IPC, named pipes, TCP/IP, and IPX/SPX.