package in.bench.resources.msaccess.db.example;

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

public class UpdateRecordUsingJDBCPreparedStatement {

	public static void main(String[] args) {

		// variables
		Connection connection = null;
		PreparedStatement preparedStatement = null;

		// Step 1: Loading or registering MySQL JDBC driver class
		try {
			Class.forName("com.mysql.jdbc.Driver");
		}
		catch(ClassNotFoundException cnfex) {
			System.out.println("Problem in loading MySQL JDBC driver");
			cnfex.printStackTrace();
		}

		// Step 2: Opening database connection
		try {

			// Step 2.A: Create and get connection using DriverManager
			connection = DriverManager.getConnection(
        "jdbc:mysql://localhost:3306/PLAYER_INFO", "root", "root@123"); 

			// create SQL query to update PLAYER info
			String sqlUpdateQuery =
                       "UPDATE PLAYER SET AGE = ? WHERE PLAYER_ID = ?";

			// Step 2.B: Creating JDBC Statement
		preparedStatement = connection.prepareStatement(sqlUpdateQuery);

			// set values for PreparedStatement for respective ?
			preparedStatement.setInt(1, 46);	// AGE
			preparedStatement.setInt(2, 2);		// PLAYER_ID

			// Step 2.C: Executing SQL & retrieve data into ResultSet
			int sqlQueryResult = preparedStatement.executeUpdate();

			System.out.println(sqlQueryResult +
                     " indicates PLAYER info updation is successful");
		}
		catch(SQLException sqlex){
			sqlex.printStackTrace();
		}
		finally {

			// Step 3: Closing database connection
			try {
				if(null != connection) {

					// cleanup resources, once after processing
					preparedStatement.close();

					// and then finally close connection
					connection.close();
				}
			}
			catch (SQLException sqlex) {
				sqlex.printStackTrace();
			}
		}
	}
}

1 indicates PLAYER info updation is successful