Click here to watch in Youtube :
https://www.youtube.com/watch?v=JWNbxg17Rso&list=UUhwKlOVR041tngjerWxVccw

Click the below Image to Enlarge

JDBC - CallableStatement In Out Parameters (Oracle)

JDBC - CallableStatement In Out Parameters (Oracle)

JDBC - CallableStatement In Out Parameters (Oracle)

JDBCCallableStatementDemo.java

import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Scanner;

public class JDBCCallableStatementDemo
{
    // JDBC driver name and database URL
    static final String JDBC_DRIVER = "oracle.jdbc.driver.OracleDriver";
    static final String DB_URL = "jdbc:oracle:thin:@localhost:1521:xe";

    // Database credentials
    static final String USERNAME = "hr";
    static final String PASSWORD = "hr";

    public static void main(String[] args)
    {
        JDBCCallableStatementDemo jdbcCallableStatementDemo = new JDBCCallableStatementDemo();

        Scanner scanner = new Scanner(System.in);
        while (true)
        {
            System.out.print("Enter the CountryId :");
            String countryId = scanner.nextLine();

            if (countryId.equals("exit"))
            {
                break;
            }

            jdbcCallableStatementDemo.getCountryName(countryId);

        }
        scanner.close();
    }

    private void getCountryName(String countryId)
    {
        Connection connection = null;
        CallableStatement callableStatement = null;
        try
        {
            /*
             * Register the JDBC driver in DriverManager
             */

            Class.forName(JDBC_DRIVER);

            /*
             * Establish connection to the Database using DriverManager
             */

            connection = DriverManager
                    .getConnection(DB_URL, USERNAME, PASSWORD);

            String plSql = "{call GET_COUNTRY_NAME(?,?)}";

            callableStatement = connection.prepareCall(plSql);

            /*
             * Bind IN parameter first, then bind OUT parameters
             */

            callableStatement.setString(1, countryId);

            /*
             * Register OUT Parameters
             */
            callableStatement.registerOutParameter(2, java.sql.Types.VARCHAR);

            /*
             * Use execute method to run the stored procedure.
             */

            callableStatement.execute();

            /*
             * Retrieve countryName with getXXX method
             */
            String countryName = callableStatement.getString(2);

            System.out.println("countryName : " + countryName);

        }
        catch (SQLException se)
        {
            se.printStackTrace();
        }
        catch (ClassNotFoundException e)
        {
            e.printStackTrace();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
        finally
        {
            /*
             * finally block used to close resources
             */
            try
            {
                if (callableStatement != null)
                {
                    callableStatement.close();
                }
            }
            catch (SQLException sqlException)
            {
                sqlException.printStackTrace();
            }
            try
            {
                if (connection != null)
                {
                    connection.close();
                }
            }
            catch (SQLException sqlException)
            {
                sqlException.printStackTrace();
            }
        }

    }
}