JDBC provides an API for connecting to and interacting with databases in Java. It defines interfaces and classes for establishing a connection with a database, issuing SQL statements, processing result sets, and handling exceptions. The key classes in JDBC include DriverManager, Connection, Statement, PreparedStatement, CallableStatement, and ResultSet. There are four types of JDBC drivers: Type 1 (JDBC-ODBC bridge), Type 2 (native API), Type 3 (network protocol), and Type 4 (native protocol). Connecting to a database in JDBC involves loading the driver, getting a connection, creating statements, executing queries, processing results, and closing the connection.

1. JDBC

2. SAMRAT ASHOK TECHNOLOGICAL
INSTITUTE VIDISHA (M.P.)
SUBMITTED TO:-
MR. GAGAN VISHWAKARMA
(Assistant professor)
SUBMITTED BY:-
SUMIT KUSHWAH
(0108CS131054)
ALBEL SINGH BHARGAV
(0108CS131005)

3. Introduction to JDBC
http://www.java2all.com

4. JDBC - Java Database Connectivity.
 The term JDBC unofficially stand for java
database connectivity
 JDBC provides API or Protocol to interact
with different databases.
 It is an API(Application programmiing
interface).
 Class for an specific pupose is called an
API

5. Connection

6. http://www.java2all.com
JDBC have so many classes and interfaces
that allow a java application to send request
made by user to any specific DBMS(Data Base
Management System).
JDBC is a bridge between java application and
database
Jdbc is developed by java soft
DEFINITION

7. JDBC Specification
 Different version of JDBC has different
specification as under.
 JDBC 1.0 - it provides basic functionality of
JDBC.
 JDBC 2.0 - JDBC 3.0 - JDBC 4.0
- it provides so many extra features like Auto
loading of the driver interface.

8. JDBC Architecture:
 As we all know now that driver is required to
communicate with database.
 JDBC API provides classes and interfaces to
handle request made by user and response made by
database.
 Some of the important JDBC API are as under.
 DriverManager Driver
 Connection Statement
 PreparedStatement CallableStatement
 ResultSet DatabaseMetaData
 ResultSetMetaData

9. JDBC NETWORK

10. JDBC DRIVER’S
 (1) Type 1 Driver : JDBC-ODBC Bridge.
 (2) Type 2 Driver : Native-API Driver
(Partly Java driver).
 (3) Type 3 Driver : Network-Protocol
Driver (Pure Java driver for database Middleware).
 (4) Type 4 Driver : Native-Protocol Driver
(Pure Java driver directly connected to database

11. Type 1 Driver: JDBC-ODBC Bridge :-
 The JDBC type 1 driver which is also known as a
JDBC-ODBC Bridge is a convert JDBC methods
into ODBC function calls.
 Sun provides a JDBC-ODBC Bridge driver by
“sun.jdbc.odbc.JdbcOdbcDriver”.

12. Architecture Diagram:

13. Type 4 Driver: Native-Protocol Driver
 The JDBC type 4 driver converts JDBC method
calls directly into the vendor specific database
protocol and in between do not need to be
converted any other formatted system so this is the
fastest way to communicate quires to DBMS and it
is completely written in JAVA because of that this
is also known as the “direct to database Pure JAVA
driver”.
 Approx 56 company have 128 driver

14. Architecture Diagram:

15. Steps required to develop jdbc application
 1.Import the required packages
 2.load and register the driver
 3.open the connection to the database
 4.Create Statement Object
 5.Exequte the query
 6.process the result
 7.Disconnect with the database

16. 1.Import packages
 The fisrt step in jdbc programming is to import the
packages to be used by our application for
communicating with the database. Java provide us 2
packages for jdbc
 1.java.sql (Connected Architecture)
 2.javax.sql (Disonnected Architecture)

17. 2.Load and Register the driver
 1.The second and one of the most important step in
jdbc is to tell jvm which driver we want to use for
our application connectivity to the database this
step is called loading and registring the driver
 2.static class forname() .
 3. prototype :-
Public static class forname(String)throws
ClassNotFoundException

18. 3. Opening the Connection to the database
 1.The third step in communicating with the database
is to obtain the connection and this is done by using
the method getConnection belonging to
driverManager class
 2.prototype:-
public static Connection
getConnection(String,String,String)throws
SQLException

19. ARGUMENT

20. Sample call:-
Connection
conn=DriverManager.getConnection(“jdbc:oracle:thin
:@//sumit-pc:1521/XE","hr","sati");)

21. 4.Creating Statement Object:
 Once we connected to the database the next step is
to send queries to the database but to do this we
first have to acquire an object of Statement
Interface
 To do this we call the method createStatement()
 Prototype:-
Public Statement
createStatement()throwsSQLException
Statement st=conn.createStatement();

22. 5.Executing Queries
 Once we have obtain stmt object,the next task is
communicate with database
 There are two method for this
 1.public ResultSet
exequteQuery(String)ThrowsSQLException
 2.public int executeUpdate(String)
ThrowsSQLException

23. 6.Fetch and process the result
 In this step we retrive and process the row ‘s which
have been return from the database
 1.Public boolean next()throws SQLException
 2.public xxx getxxx(String column) throws
SQLException

24. 7.Disconnect with the database
 1.public void close() throws SQLException

25. Sample program
25
import java.sql.*;
class MyJdbcCode1
{ public static void main(String []args)
{ try
{ Class.forName("oracle.jdbc.OracleDriver");
System.out.println("Driver loadedd");
Connection conn=DriverManager.getConnection("jdbc:oracle:thin:@//sumit-
pc:1521/XE","hr","sati");
System.out.println("connected to the data base");
Statement st=conn.createStatement();
ResultSet rs=st.executeQuery("select FIRST_NAME,LAST_NAME from
EMPLOYEES");
while(rs.next())
{
String name1=rs.getString("FIRST_NAME");
String name2=rs.getString("LAST_NAME");
System.out.println(name1+"t"+name2);
}

26. Sample program(cont)
26
conn.close();
}
catch(ClassNotFoundException cns)
{
System.out.println("class no found"+cns.getMessage());
System.exit(1);
}
catch(SQLException sq)
{
System.out.println("error:"+sq.getMessage());
System.exit(1);
}
}
}

27. Comment’s and Query
 If any-