我对如何做到这一点感到不安。 我试图做到这一点的是:
我的数据正在插入,我希望用购买力平价提取数据,在过去一小时(15小时)中插入了多少数据。 将有100万加仑的记录。 当我插入这一数据时,每个新数据插入一个栏,注明日期?
这样做的最有效方式是什么?
d 我建议使用伐木作为雕像。 你们可以保持一种记忆,每1 000个浏览点(或对你有意义的数字)记录。
在您的结构中增加一个日期栏,用“NOW()”字填充。 只要有指数,简单查询就应当非常高效。
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