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Editorial Team
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Asked: 2026-06-06T19:46:57+00:00

I want to do fast, sub-second joins across a few tables using the Entity

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I want to do fast, sub-second joins across a few tables using the Entity Framework (model first). The simplified data model is similar to the following:

Videos: ID (Primary Key); Name

Tags: ID (Primary Key); Name

TaggedVideos: TagID (FK); VideoID (FK)

Is there a way to pre-load TaggedVideos when the table is not modeled or exposed in the Entity Framework? I’m trying to avoid database hits when searching for all videos with a certain tag. Ideally, all three tables would be loaded into collections and I could join then using PLINQ.

If I add another column to TaggedVideos, I can accomplish this but I would prefer an elegant solution that doesn’t clutter the data model.

Any help would be appreciated.

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1 Answer

  1. Editorial Team

    Cache the tags and make sure the have a backward nav-property to the collection of videos.

    You can then access your cached version of the tag and look up the associated videos without a join.

    If you dont want to cache the whole video, in your caching code select use something like Videos.Select(v=>v.Id) to select just the Ids and cache that.

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