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Editorial Team
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Asked: 2026-06-18T16:29:32+00:00

I have the following question: UPDATE users SET posts = posts – 1 WHERE

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I have the following question:

UPDATE users SET posts = posts - 1 WHERE user_id = 5214

However, I think when posts = 0 this query sets posts to 16777214. How can I get it to stay @ 0 (it’s unsigned) if I try to -1?

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1 Answer

  1. Editorial Team

    simply add condition the filters all records which are greater than zero.

    UPDATE users 
SET    posts = posts - 1 
WHERE  user_id = 5214 AND 
       posts > 0
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