JDBC is a Java API that allows Java programs to connect to databases. It includes interfaces, classes, and drivers. The document discusses JDBC architecture and components like drivers, interfaces, and classes. It also explains the steps to connect to a database like MySQL using JDBC - registering the driver class, getting a connection, creating statements, executing queries, and closing the connection. Additional topics covered include prepared statements and result sets.

1. JDBC – Java Database Connectivity
Session – 1
 What is JDBC?
 JDBC General Architecture
 JDBC API components
 JDBC Drivers,
 JDBC Driver Types
 JDBC Interfaces, Classes
 JDBC Connectivity Steps
 Connectivity with MySQL
 Connection
 CRUD Operations
 Prepared Statement
 Updateable ResultSet
By Jainul Musani

2. JDBC – Java Database Connectivity
What is JDBC ?
 To connect Java Applications with Database.
 JDBC is a Java API to connect and execute the query
with the database.
 It is a part of JavaSE (Java Standard Edition).
 JDBC API uses JDBC drivers to connect with the
database.
By Jainul Musani

3. JDBC – Java Database Connectivity

4. JDBC – Java Database Connectivity

5. JDBC – Java Database Connectivity

6. JDBC – Java Database Connectivity
JDBC API components
 The java.sql package contains classes and interfaces for
JDBC API.
 JDBC Drivers
 JDBC Interfaces
 JDBC Classes
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7. JDBC – Java Database Connectivity
JDBC Drivers
There are four types of JDBC drivers:
1) JDBC-ODBC Bridge Driver,
2) Native Driver,
3) Network Protocol Driver, and
4) Thin Driver
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8. JDBC – Java Database Connectivity
1) Driver interface
2) Connection interface
3) Statement interface
4) PreparedStatement
interface
5) CallableStatement
interface
6) ResultSet interface
7) ResultSetMetaData
interface
8) DatabaseMetaData
interface
9) RowSet interface
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JDBC Interfaces
There are Nine types of JDBC Interfaces:

9. JDBC – Java Database Connectivity
 DriverManager class
 Blob class
 Clob class
 Types class
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JDBC Classes

10. JDBC – Java Database Connectivity
JDBC Drivers : JDBC-ODBC Bridge Driver
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 The JDBC-ODBC bridge driver uses
ODBC driver to connect to the
database.
 The JDBC-ODBC bridge driver converts
JDBC method calls into the ODBC
function calls. This is now discouraged
because of thin driver.

11. JDBC – Java Database Connectivity
JDBC Drivers : Native API Driver
 The Native API driver uses the
client-side libraries of the
database. The driver converts
JDBC method calls into native
calls of the database API. It is
not written entirely in java.
Advantage:
o performance upgraded than
JDBC-ODBC bridge driver.
Disadvantage:
o The Native driver needs to be
installed on the each client
machine.
o The Vendor client library needs
to be installed on client
machine.
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12. JDBC – Java Database Connectivity
JDBC Drivers : Network Protocol Driver
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The Network Protocol driver uses
middleware (application server) that
converts JDBC calls directly or
indirectly into the vendor-specific
database protocol. It is fully
written in java.
Advantage: No client side library is
required
Disadvantages:
Network support is required on client
machine.
Requires database-specific coding to
be done in the middle tier.

13. JDBC – Java Database Connectivity
JDBC Drivers : Thin Driver
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The thin driver converts JDBC calls
directly into the vendor-specific
database protocol. That is why it is
known as thin driver. It is fully
written in Java language.
Advantage:
Better performance than all other
drivers.
No software is required at client
side or server side.
Disadvantage:
Drivers depend on the Database.

14. JDBC – Java Database Connectivity
1) Register the Driver class
2) Create connection
3) Create statement
4) Execute queries
5) Close connection
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Java Database Connectivity Steps:

15. JDBC – Java Database Connectivity
Oracle: download the jar file ojdbc14.jar
MySQL: download the jar file mysql-connector.jar
Two ways to load the jar file:
1) paste the ojdbc14.jar file in jre/lib/ext folder
2) set classpath
https://www.soapui.org/docs/jdbc/reference/jdbc-drivers/
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Download and Setup the drivers

16. JDBC – Java Database Connectivity
The forName() method of Class class is used to register the
driver class.
This method is used to dynamically load the driver class.
Syntax:
public static void forName(String className) throws
ClassNotFoundException
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Step:1: Register the Driver Class

17. JDBC – Java Database Connectivity
Example:
Loading Oracle Driver
Class.forName("oracle.jdbc.driver.OracleDriver");
Loading MySQL Driver
Class.forName("com.mysql.jdbc.Driver");
https://www.soapui.org/docs/jdbc/reference/jdbc-drivers/
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Step:1: Register the Driver Class

18. JDBC – Java Database Connectivity
try{
Class.forName("com.mysql.jdbc.Driver");
} catch (ClassNotFoundException e) {
System.out.println("MySQL JDBC Driver not found !!");
return;
}
System.out.println("MySQL JDBC Driver Registered!");
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Step:1: Register the Driver Class

19. JDBC – Java Database Connectivity
The getConnection() method of DriverManager class is used
to establish connection with the database.
Syntax:
public static Connection getConnection(String url) throws
SQLException
public static Connection getConnection(String url, String
name, String password) throws SQLException
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Step:2: Create connection Object

20. JDBC – Java Database Connectivity
Connection connection = null;
try {
connection =
DriverManager.getConnection("jdbc:mysql://localhost:3306/JDBCDemo",
"root", "password");
System.out.println("SQL Connection to database established!");
} catch (SQLException e) {
System.out.println("Connection Failed! Check output console");
return;
}
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Step:2: Create connection Object

21. JDBC – Java Database Connectivity
Statement stmt = null;
try
{
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection
("jdbc:mysql://localhost:3306/JDBCDemo", "root", "password");
stmt = con.createStatement();
stmt.execute("INSERT INTO EMPLOYEE (ID,FIRST_NAME,LAST_NAME,STAT_CD) "
+ "VALUES (1,'Lokesh','Gupta',5)");
}
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Step:3: Create statement

22. JDBC – Java Database Connectivity
Statement stmt = null;
try
{
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection
("jdbc:mysql://localhost:3306/JDBCDemo", "root", "password");
stmt = con.createStatement();
stmt.execute("INSERT INTO EMPLOYEE (ID,FIRST_NAME,LAST_NAME,STAT_CD) "
+ "VALUES (1,'Lokesh','Gupta',5)");
}
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Step:4: Execute Queries

23. JDBC – Java Database Connectivity
try{
:::::::::::::
}catch (Exception e) {
e.printStackTrace();
}finally {
stmt.close();
con.close();
}
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Step:5: Close Connection

24. JDBC – Java Database Connectivity
ResultSet rs =
selectStmt.executeQuery(
“Select StudID, StudName, Subject, Marsk From Students
Where StudID Between 101 And 150");
while(rs.next())
{
System.out.println(rs.getString(1)); //First Column
System.out.println(rs.getString(2)); //Second Column
System.out.println(rs.getString(3)); //Third Column
System.out.println(rs.getString(4)); //Fourth Column
}
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Fetch the data from result set

25. JDBC – Java Database Connectivity
Connection con = null;
PreparedStatement pstmt = null;
String sql = “Insert into Students
(StudID,StudName,Subject,Marks)
VALUES (?,?,?,?)";
pstmt = con.PreparedStatement(sql);
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JDBC PreparedStatement

26. JDBC – Java Database Connectivity
pstmt.setInt(1, 87);
pstmt.setString(2, "Lokesh");
pstmt.setString(3, "Gupta");
pstmt.setInt(4, 5);
int affectedRows = pstmt.executeUpdate();
System.out.println(affectedRows + " row(s) affected !!");
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JDBC PreparedStatement