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Home/ Questions/Q 7195315
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Editorial Team
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Editorial Team
Asked: May 28, 20262026-05-28T20:33:13+00:00 2026-05-28T20:33:13+00:00

I have table with permissions that has few bit fields. I want to group

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I have table with permissions that has few bit fields. I want to group rows in this table and get result with top permissions.
So with this table:

UserId, Permisssion1,Permission2, Permisssion3 

With this to rows
13,1,0,0
13,0,1,0

I want to get:
13,1,1,0

Problem is that operator MAX doesn’t works on bit fields. How to do that in efficient way? (without using CASE)

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  1. Editorial Team
    Editorial Team
    2026-05-28T20:33:14+00:00Added an answer on May 28, 2026 at 8:33 pm

    As simple as…

    MAX(CAST(Permisssion1 AS tinyint))
    

    You don’t have many other options…

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