如A条朋友圈下有N个评论
当用户进入朋友圈刷新最新的10条，如每条朋友圈下都有N个评论那需要调用的数据计算公式为：R = (A*N)*10
我的问题是：这种调取数据的方式，数据库压力很大，需要第一段时间才可以完全调取，但微信朋友圈缺那么快，求大神赐教。
回复讨论(解决方案)
同样用的是数据库，不过不是关系型数据库，而是基于内存的 NOSQL 数据库
关系型数据库是基于硬盘的，速度自然要慢些
所以，速度是钱烧出来的
查询的方法？ 依旧是先查询10条朋友圈然后再依次查询出每个朋友圈的评论嘛？
关系型数据库是基于硬盘的，速度自然要慢些
所以，速度是钱烧出来的
查询的方法？ 依旧是先查询10条朋友圈然后再依次查询出每个朋友圈的评论嘛？
对！
键值对都是这么查询的
其实要比关联查询慢，只不过载体不同，显得快些罢了
对！
键值对都是这么查询的
其实要比关联查询慢，只不过载体不同，显得快些罢了
谢谢，除了nosql和硬件本身性能提升的办法，还有什么可以在语言本身提升查询速度的方法呢？
没有！
当然前提是数据库给出的提速建议都被你采纳了（或证明无效）
没有！
当然前提是数据库给出的提速建议都被你采纳了（或证明无效）
多谢，大神。
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