Apache Derby上基于列匹配从一个表到另一个表的SQL更新

UPDATE table1
SET column1 = table2.column1, column2 = table2.column2
FROM table2
WHERE table1.key = table2.key;

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

public class DerbyUpdateExample {
    public static void main(String[] args) {
        String url = "jdbc:derby:sampleDB;create=true";
        String user = "username";
        String password = "password";

        try (Connection conn = DriverManager.getConnection(url, user, password);
             Statement stmt = conn.createStatement()) {

            String sql = "UPDATE table1 " +
                         "SET column1 = table2.column1, column2 = table2.column2 " +
                         "FROM table2 " +
                         "WHERE table1.key = table2.key";

            stmt.executeUpdate(sql);
            System.out.println("Update completed successfully.");

        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}