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Editorial Team
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Asked: 2026-06-14T11:56:58+00:00

Judging by reading through MongoDB documentation, there is no equivalent of sql-like statement SELECT

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Judging by reading through MongoDB documentation, there is no equivalent of sql-like statement 

SELECT 'field1' as 'a', 'field2' as 'b' ....

but because I am in need of such feature, I hope that I missed something.

What is the common practice for dealing with this problem?

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  1. Editorial Team

    The most common approach is to make a mapping layer in your application to take in a set of fields and then map them to what your application needs.

    You are correct that there is not AS projection built into MongoDB at all.

    I believe you could accomplish this with the aggregation however:

    • I don’t see why
    • It will be heavier and slower than just doing it in the app.

    So yea, I would stick to writing a mapping class in the app.

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