package org.kodejava.sample.java.sql;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
import java.sql.ResultSet;
public class ResultSetExample
{
public static void main(String[] args) throws Exception
{
Connection connection = null;
try
{
// Here we load the MySQL database Driver class
Class.forName("com.mysql.jdbc.Driver");
// Define properties for connecting to database such as
// database jdbc url, username and password
String url = "jdbc:mysql://localhost/sampledb";
String username = "root";
String password = "";
// Get a connection to database.
connection = DriverManager.getConnection(url, username, password);
// Create a statment object.
Statement statement = connection.createStatement();
// Executes a query command to select isbn and the book title
// from books table. The execute query returns a ResultSet object
// which is the result of our query execution.
ResultSet books = statement.executeQuery("SELECT isbn, title, published_date FROM books");
// To get the value returned by the statement.executeQuery we need
// to iterate the books object until the last items.
while (books.next())
{
// To get the value from the ResultSet object we can call
// a method that correspond to the data type of the column in
// database table. In the example below we call
// books.getString("isbn") to get the book's ISBN information.
System.out.println(books.getString("isbn") + "; "
+ books.getString("title") + "; "
+ books.getDate("published_date"));
}
} finally {
if (connection != null && !connection.isClosed())
{
// We've done the business with the connection object, so
// let's close it.
connection.close();
}
}
}
}
|
