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1. Introduction to Advanced Java

2. Index
Advanced Java Tutorial:
need for Advance Java
introduction to JDBC
JDBC architecture
Common JDBC components

3. Prepared by
Preeti

4. Advanced Java everything beyond that core Java Training is especially
defined APIs in the Java Enterprise Edition contains Servlet
programming, Web Services, persistence-API, etc.
It is a Web & Enterprise application development platform that follows
basically the client & server architecture.
Advanced Java Tutorial: need for Advance Java
Below I have listed some important advantages of Advance Java:
1. Advance Java-i.e., JEE (Java Enterprise Edition) you cannot
understand the library, the Client-Server architecture for the
development of Web applications are supported by the core Java.

5. 2. J2EE is platform-independent, Java-Centric environment for
developing, building and deployment of Web-based applications online.
It also consists of a set of services, APIs, and protocols that provide the
functionality for developing multi-tiered, web-based applications is
necessary.
3. You can work with Web and application servers such as Apache
Tomcat, Glassfish, etc.and understand communication via HTTP
protocol. But in Core Java it is not possible.
4. There are many Advance Java frameworks such as Spring,JSF, Struts
etc.with which you can develop secure transaction-based web apps for
domains such as e-Commerce, Banking, Legal, Financial, Healthcare,
Inventory etc.

6. 5. What do you mean? To work and understand the hot technologies like
Hadoop and Cloud services, you should be prepared with core and
advanced Java concepts.
I hope you understand why Advanced Java is essential. For your better
understanding, I have divided this article into three sections. Each of
these sections deals with one of the most important concepts of
advanced Java:
1. JDBC (Java database connectivity)
2. Java Servlets
3. JSP(Java Servlet pages)
Let's start our discussion and understand the concept of Java database
connectivity, a useful tool for interacting with the database.
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7. Advanced Java Tutorial: introduction to JDBC
JDBC is a standard Java API for database-independent connectivity
between the Java programming language and a variety of databases.
This program interface allows you to encode the access request
statements in the Structured Query Language (SQL).
They are then passed to the program that manages the database. It's
mainly about opening a connection, creating a SQL database, running
SQL queries, and then getting to the output.

8. We can use JDBC API to tabular data stored in any relational database.
With the help of the JDBC API we can store, update, delete and retrieve
data from the databases. It is similar to Microsoft's Open Database
Connectivity (ODBC).
For a better understanding of JDBC's work, we delve deeper into the
topic and understand the architecture behind Java Database
Connectivity.
Advanced Java Tutorial: JDBC architecture
The JDBC API supports both two-tier and three-tier processing models
for database access.
JDBC API: this provides the application-to-JDBC Manager connection.
JDBC driver API: This supports the JDBC Manager-to-Driver
connection.

9. The JDBC API uses a driver Manager and database specific drivers to
connect to heterogeneous databases transparently. The JDBC driver
manager ensures that the correct driver is used to access each data
source. The driver manager supports multiple concurrent drivers
connected to multiple heterogeneous databases.
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10. Advanced Java Tutorial: Common JDBC components
The JDBC API provides the following interfaces and classes
DriverManager is used to manage a list of database drivers. The first
driver that recognizes a specific Protocol, JDBC, is used to establish a
database connection.
river is an interface that communicates with the database server. It also
abstracts the details associated with working with driver objects.
Connection is an interface that contains all methods to connect to a
database. The connection object represents the communication context,
i.e. all communication with the database is only carried out via
connection object.

11. Let's go to the next topic and look at the steps to create a JDBC
application.
Advanced Java Tutorial: steps to create JDBC application
To create JDBC application, we need to follow some steps. Let's see
what they are.
1. 1. 1. Import the packages: you must include the packages containing
the JDBC classes for database programming. Mostly with import
java.SQL.* will be sufficient.
2. Register the JDBC driver: you must initialize a driver so you can
open a communication channel with the database.
3. 3. 4. Here, you can use the getConnection() method to create a
connection object that represents a physical connection to the database.
4. Run query: Requires you to create and send a SQL statement to the
database with an object of type statement.
5. What do you mean? Extracting data from result set: requires that you
use the appropriate getXXX () method to retrieve the data from the
result set.

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