本人因為好奇加想驗證，對sql server access mysql三款資料庫效能進行一個簡單測試。

測試方法如下：

建立資料庫欄位為：

sql server:

access:

mysql:

程式碼如下：

asp.net+sql server

 int len = 10000;
        DateTime begin = DateTime.Now;
        string sql;
        for (int i = 0; i < len; i++)
        {
            sql = "insert into art (title,content0,hits) values( 'title" + i + "','content" + i + "'," + i + ")";
            DbHelperSQL.ExecuteSql(sql);

        }
        for (int i = 0; i < len; i++)
        {
            sql = "select * from  art where hits=" + (i) + " order by id desc";
            DataTable dt = DbHelperSQL.Query(sql).Tables[0];          

        }

        Response.Write("<div>寫" + len + "條，共" + DbHelperSQL.GetSingle("select count(*) from art") + "條用時：" + (DateTime.Now - begin).TotalSeconds + "</div>");
 

int len = 100;
        DateTime begin = DateTime.Now;
        string sql;
        for (int i = 0; i < len; i++)
        {
            sql = "insert into art (title,content0,hits) values( 'title" + i + "','content" + i + "'," + i + ")";
            DbHelperOleDb.ExecuteSql(sql);

        }
        for (int i = 0; i < len; i++)
        {
            sql = "select * from  art where hits=" + i + " order by id desc";
            DataTable dt = DbHelperOleDb.Query(sql).Tables[0];
        
        }

        Response.Write("<div>用時：" + (DateTime.Now - begin).TotalSeconds + "</div>");
 

public function index()
	{
		set_time_limit(0); 
		$len=10000;
		$pagestartime=microtime();
		for($i=0;$i<$len;$i++)
		{
			$data['title']="title".$i;
			$data['content']="content".$i;
			$data['hits']=$i;
			FDB::insert("art",$data);			
		}		
		for($i=0;$i<$len;$i++)
		{
			$sql ="select * from fanwe_art order by id desc limit $i ,1";
			$data=FDB::fetchFirst($sql);			
		}
		$pageendtime = microtime();
		$starttime = explode(" ",$pagestartime);
		$endtime = explode(" ",$pageendtime);
		$totaltime = $endtime[0]-$starttime[0]+$endtime[1]-$starttime[1];
		$timecost = sprintf("%s",$totaltime);
		echo $len."頁面執行時間: $timecost 秒";
	}
 

在資料量小的時候，mysql 和sql server 差距不明顯。當資料量大的時候，mysql 和sql server差距就很懸殊了。所以，各位朋友可以根據網站預計訪問量來選擇對應的資料庫。sql server唯一不好的就是不免費。
當然，這個測試只是簡單的測試讀寫，未必全面，各位朋友們有什麼觀點，歡迎留言指教！