[英]linq join on IQueryable IEnumerable
What would be the best way to join the IEnumerable list with IQueryable. 用IQueryable联接IEnumerable列表的最佳方法是什么。
I already saw this link which talks about it. 我已经看到了有关此链接的链接。 But I want to know if someone had tried something different. 但是我想知道是否有人尝试了不同的方法。 Which wont hinder on performace as i would have huge dataset. 这不会影响性能,因为我将拥有巨大的数据集。
https://ilmatte.wordpress.com/2013/01/06/entity-framework-joining-in-memory-data-with-dbset/ https://ilmatte.wordpress.com/2013/01/06/entity-framework-joining-in-memory-data-with-dbset/
When you have a large IEnumerable
and want to join on a database, and the data is too much to embed in a query using Contains
or something like that extension, I would suggest add a table to your database, uploading the IEnumerable
into the table, and then doing the join on the database. 如果您有一个较大的IEnumerable
并想加入数据库,并且数据太多而无法使用Contains
或类似扩展名的查询嵌入到查询中,则建议将一个表添加到您的数据库中,然后将IEnumerable
上载到该表中,然后在数据库上进行联接。
But if the IEnumerable
is much larger than the IQueryable
, just filter the IQueryable
as much as possible on the database side and then use AsEnumerable
to pull it into memory and join there. 但是,如果IEnumerable
比IQueryable
大得多,只需在数据库侧尽可能多地过滤IQueryable
,然后使用AsEnumerable
将其拉入内存并在那里进行连接。
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