LINQ 版本的 TOP PERCENT [英] LINQ version of TOP PERCENT

问题描述

有没有办法使用百分比执行顶级(Take)linq 查询?T-SQL 应该是:

Is there a way to perform a top (Take) linq query using percentage? The T-SQL would have been:

SELECT TOP 20 PERCENT ...

但 LINQ 似乎只想要一个整数.

But LINQ seems to only want an int.

看来我得先数一数，然后再取.有什么建议吗?

It seems that I would have to do a count and then a take. Any suggestions?

推荐答案

本质上，您必须执行两次查询.您必须执行一次以获得计数，然后再次计算百分比(因为您将传递与等于 20% 的计数相对应的数字).

You would have to perform the query twice, in essence. You would have to perform it once to get a count, and then again to figure out the percentage (because you will pass the number that corresponds to the count that will equal 20%).

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