如何设计一些数据的统计
比如我想在首页做一个统计,
文章数 ,用户数,最新用户,之类的统计,如果每次都要从mysql进行count的话,太占资源了吧.
那如何少占资源呢,需要对统计专门建一个表吗?有什么解决方案.
回复内容：
比如我想在首页做一个统计,
文章数 ,用户数,最新用户,之类的统计,如果每次都要从mysql进行count的话,太占资源了吧.
那如何少占资源呢,需要对统计专门建一个表吗?有什么解决方案.
于经常变更的数量统计之类的数据，一般不用mysql，而是nosql，
这里我认为如果只需要数量，那么可以直接把数量这个值单独存储成一个值，存在memcache或者Redis里都行，
文章或用户的其他字段就放在mysql里
对于最新用户这种，可以使用Redis的列表功能
xx数，这类可以在表中做缓存字段，更新机制写好就行了，感觉很无缝
最新xx，这类可以做memcache缓存，x分钟更新一次
文章数这些没必要每次都count啊。设一个的字段记录文章数。发一篇文章，count+1，删除count-1.不用每次都统计
可以单独做一个小表，最多存储10条记录（视需要而定），每次取文章时，查看所取文章访问数和小表中访问数最小的比较，如果小于，不处理，如果大于，则进行插入排序，将此文章放入小表，同时删除小表最后一条文章
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