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increase int column via UPDATE, without SELECT

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  • increase int column via UPDATE, without SELECT

    I'm a tad worried that this is a simple SQL question, and not a MySQL performance question, so if thats the case, my apologies.

    I'm looking to increase (or decrease) the value of an int field by a set amount (usually 1), without calling a SELECT statement first.

    Right now, i am doing a SELECT to find the value, then doing an UPDATE with the new value.

    I hope there is a way of just doing an UPDATE with a function, but i have yet to find it (and my bad english is slowing the search).

    Thanks

    Kev

    P.S. While not a performace quesstion iteself, it would save me 1 DB call everytime i want to do this, which happens alot on my system.

  • #2
    *sigh*

    Apparently the phrase i should be searing for is INCREMENT and not INCREASE.

    That got me the solution first link on google.

    for those that might be as stupid as me it's:

    update yourtablename set x = x + 1;


    I will try and not ask as silly questions next time, i'm new to MySQL so i apologise in advance.

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