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Asked: 2026-05-25T16:35:48+00:00

For each row in my database, I have 2 columns, say id and A

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For each row in my database, I have 2 columns, say id and A. Sometimes A can be null. I want to sort all records by greatest of its id and A value, but if A is null, it will be ignored and the column will be sorted by id instead.

I’m using Hibernate and database as MySQL. So far, my HQL is like

select i from Item as i order by GREATEST(id, a)

it is working fine except for the records with A=null. For those values, they appear at the end of the returning results (they’re supposed to be sorted using their id as key).

How to write such an HQL statement?

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1 Answer

  1. Editorial Team

    Somebody solved it with Case..When..End, works perfectly.

    select i from Item as i order by CASE WHEN a = null THEN id ELSE GREATEST(id, a) END DESC
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