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Asked: 2026-05-19T22:09:02+00:00

I’m building an application to let college students search for housing. My model includes

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I’m building an application to let college students search for housing. My model includes a Room table with the room dimensions, whether it’s reserved for hall staff, and its room number, among other things. However, some rooms participate in “suites” of 2-8 rooms. How would I model that?

I was considering a suite_id column in the Room table, with NULL allowed to account for (the majority of) the rooms that aren’t suites. It seems like there should be a more elegant way to do things, though.

As for what I want to do with the data, I want to be able to check if a room is part of a suite, and I want to be able to query for all suites (optionally limiting by size).

Any advice would be much appreciated!

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  1. Editorial Team

    That schema works fine.

    To check if a room is part of a suite, check if the column is null or not in your application.

    To query for all suites, select rows WHERE suite_id IS NOT NULL, and limit by size by GROUP BY suite_id HAVING COUNT(*) = number_of_rooms_you_want.

    Though the syntax might be slightly different depending what RDBMS you’re using. You didn’t tag the question with any.

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