import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

public class UpdateExample {
    public static void main(String[] args) {
        try {
            Class.forName("oracle.jdbc.driver.OracleDriver");
            Connection con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe", "system", "pragna");

            String updateQuery = "UPDATE emp SET ESAL = ? WHERE EID = ?";
            PreparedStatement pstmt = con.prepareStatement(updateQuery);
            pstmt.setInt(1, 60000); // New ESAL
            pstmt.setInt(2, 30);    // EID of the employee to update

            int rowsUpdated = pstmt.executeUpdate();
            System.out.println("Rows updated: " + rowsUpdated);

            pstmt.close();
            con.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}