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

public class DatabaseConnection
{
    public static void main(String args[]) {
        String connectionUrl= "jdbc:mysql://<Host>:<Port>/<myDatabase>";    

        ResultSet resultSet;

        try (Connection connection=DriverManager.getConnection(connectionUrl,"<myUsername>","<myPassword>");  
             Statement statement = connection.createStatement()) {

            String selectSql = "SELECT * FROM `courses`";            //輸入希望執行的SQL。
            resultSet = statement.executeQuery(selectSql);

            while (resultSet.next()) {
                System.out.println(resultSet.getString("name"));
            }
        }
        catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

import pymysql

connection = pymysql.connect(host='<Host>',     
                       port=<Port>,
                       user='<myUsername>',
                       passwd='<myPassword>',
                       db='<myDatabase>')

try:
    with connection.cursor() as cursor:
        sql = "SELECT * FROM `courses`"        #輸入希望執行的SQL。
        cursor.execute(sql)
        for result in cursor:
             print(result)
finally:
    connection.close()

#include <stdio.h>
#include <mysql.h>
#include <string.h>

void main(void)
{
    MYSQL *t_mysql;

    MYSQL_RES       *res = NULL;
    MYSQL_ROW       row;
    char            *query_str = NULL;
    int             rc, i, fields;
    int             rows;

    char select[] = "select * from courses";    // 輸入希望執行的SQL。
    t_mysql = mysql_init(NULL);

    if(NULL == t_mysql){
        printf("init failed\n");
    }

    if(NULL == mysql_real_connect(t_mysql, <Host>, <myUsername>, <myPassword>, <myDatabase>,
            <Port>, NULL, 0)){
        printf("connect failed\n");
    }

    if(mysql_real_query(t_mysql, select, strlen(select)) != 0){
        printf("select failed\n");
    }

    res = mysql_store_result(t_mysql);
    if (NULL == res) {
         printf("mysql_restore_result(): %s\n", mysql_error(t_mysql));
         return -1;
    }

    fields = mysql_num_fields(res);
    while ((row = mysql_fetch_row(res))) {
        for (i = 0; i < fields; i++) {
            printf("%s\t", row[i]);
        }
        printf("\n");
    }
    mysql_close(t_mysql);

}