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Re: sql order but move some rows bottom

Cross-posted to 2 groups.

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On 04-08-2013 19:53, nawfer wrote:
> Il Sun, 04 Aug 2013 19:37:32 +0200, Luuk ha scritto:
>
>> On 04-08-2013 17:49, nawfer wrote:
>>>> y before 100:
>>>> ORDER BY
>>>> (CASE WHEN column2 = 100 THEN 2 ELSE 0 END + CASE WHEN column3='Y' THEN
>>>> 1 ELSE 0 END) ASC, column1 ASC, column2 ASC
>>>
>>> small curiosity
>>> the above code respect at a simple order
>>>
>>> ORDER BY column1 ASC, column2 ASC
>>>
>>>
>>> change the performance (example - 5%)or is insignificant the difference?
>>>
>>
>>
>> Sorry, my English is not good enough to understand what you mean .....
>> Could you rephrase the question?
>
> I ask if the code you post me for does order taht is more complex than a
> simple order by make slow the query ; is more slow of 5% 10% or more?
>

Yes, its slower, but i dont not know how much slower. With a couple of 
records you will not notice the difference, but with 'a lot of records'* 
you might notice some delay ;)

*) 'a lot of records' is not defined here ;)

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sql order but move some rows bottom nawfer <novalidsforspam@alt.al> - 2013-08-03 12:44 +0200
  Re: sql order but move some rows bottom Luuk <luuk@invalid.lan> - 2013-08-03 12:53 +0200
    Re: sql order but move some rows bottom nawfer <novalidsforspam@alt.al> - 2013-08-03 18:10 +0200
      Re: sql order but move some rows bottom Luuk <luuk@invalid.lan> - 2013-08-03 18:31 +0200
        Re: sql order but move some rows bottom nawfer <novalidsforspam@alt.al> - 2013-08-04 13:50 +0200
          Re: sql order but move some rows bottom Luuk <luuk@invalid.lan> - 2013-08-04 15:13 +0200
            Re: sql order but move some rows bottom anver <NOSPAMM@NO.SPAMMS> - 2013-08-04 16:42 +0200
            Re: sql order but move some rows bottom nawfer <novalidsforspam@alt.al> - 2013-08-04 16:56 +0200
              Re: sql order but move some rows bottom Luuk <luuk@invalid.lan> - 2013-08-04 19:36 +0200
                Re: sql order but move some rows bottom nawfer <novalidsforspam@alt.al> - 2013-08-04 19:52 +0200
                Re: sql order but move some rows bottom nawfer <novalidsforspam@alt.al> - 2013-08-05 14:50 +0200
            Re: sql order but move some rows bottom nawfer <novalidsforspam@alt.al> - 2013-08-04 17:49 +0200
              Re: sql order but move some rows bottom Luuk <luuk@invalid.lan> - 2013-08-04 19:37 +0200
                Re: sql order but move some rows bottom nawfer <novalidsforspam@alt.al> - 2013-08-04 19:53 +0200
                Re: sql order but move some rows bottom Luuk <luuk@invalid.lan> - 2013-08-04 20:20 +0200
                Re: sql order but move some rows bottom nawfer <novalidsforspam@alt.al> - 2013-08-05 14:57 +0200

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