Oracle database.
// Java Program to Establish Connection
// in JDBC with Oracle Database
// Importing database
import java.sql.*;
// Importing required classes
import java.util.*;
// Main class
class Main {
// Main driver method
public static void main(String a[])
{
// Creating the connection using Oracle DB
// Note: url syntax is standard, so do grasp
String url = "jdbc:oracle:thin:@localhost:1521:xe";
// Username and password to access DB
// Custom initialization
String user = "system";
String pass = "12345";
// Entering the data
Scanner k = new Scanner(System.in);
System.out.println("enter name");
String name = k.next();
System.out.println("enter roll no");
int roll = k.nextInt();
System.out.println("enter class");
String cls = k.next();
// Inserting data using SQL query
String sql = "insert into student1 values('" + name
+ "'," + roll + ",'" + cls + "')";
// Connection class object
Connection con = null;
// Try block to check for exceptions
try {
// Registering drivers
DriverManager.registerDriver(
new oracle.jdbc.OracleDriver());
// Reference to connection interface
con = DriverManager.getConnection(url, user,
pass);
// Creating a statement
Statement st = con.createStatement();
// Executing query
int m = st.executeUpdate(sql);
if (m == 1)
System.out.println(
"inserted successfully : " + sql);
else
System.out.println("insertion failed");
// Closing the connections
con.close();
}
// Catch block to handle exceptions
catch (Exception ex) {
// Display message when exceptions occurs
System.err.println(ex);
}
}
}
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