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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 13:50, nawfer wrote:
>>>> ORDER BY (column2 = 100) ASC, column1 ASC, column2 ASC
>>>> ?
>>>
>>> but if want also to verified the 3 colum (send bottom also the y) ?
>>
>> ORDER BY (column2 = 100 or column3='Y') ASC, column1 ASC, column2 ASC
>
>
> ok very very much thanks
> Your last touch to perfection
>
> I changed to better explain the first column; instead of letters I used
> numbers
> after sort I have
>
>   			
> 1 			
> 1 			
> 2 			
> 3 			
> 3 			
> 4 			
> 4 			
> 5 		
> 5 			
> 6 			
> 7 			
> 8 			
> 1 	100 		
> 1 	100 			
> 2 	 	y 	
> 4 	 	y	
> 5 	 	y	
> 5 	100 	 		
> 7 	100
>
> ok 100 and y are bottom; but are mixed, or better they are ordered (col 1)
> is possible have separated ? y first or after 100
>
> example y first of 100
> 6 			
> 7 			
> 8
> 2 	 	y 	
> 4 	 	y	
> 5 	 	y			
> 1 	100 		
> 1 	100
> 5 	100 	 		
> 7 	100
>

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


100 before y
ORDER BY
(CASE WHEN column2 = 100 THEN 1 ELSE 0 END + CASE WHEN column3='Y' THEN 
2 ELSE 0 END) ASC, column1 ASC, column2 ASC



>
> ____
> other last two questions in sql is better use OR  or ||  or is same?
read the manual,
i'm not interested in the answer because my opinion is that 'or' is more 
readable ;)


>
> and  col01 <= col02
> in this case
>          col01              col02
> null or void filed    <=    10
> I noticed that condition isn't verified (for me ok if so) but is always so
> for sql? col 01 if haven't a value isn't considered minor of a number?
>

http://dev.mysql.com/doc/refman/5.0/en/working-with-null.html

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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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