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Incremental search on numeric
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À
04/04/2003 17:17:39
Mike Yearwood
Toronto, Ontario, Canada
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00774073
Message ID:
00774325
Vues:
10
Hi Mike,

Thanks for the input, but, the results are the same. If the user has only typed a 6, the seek goes to 6500 because it is alphabetically before 680. I was hoping to avoid this, since the display is sorted numerically.

Tracy

>Hi Tracy
>
>Use two indexes, one for the seek and a different one for the display.
>
>The seek index expression can be alltrim(str(skno)) and the display index expression can be PADL(ALLTRIM(STR(skno)),4,"0")
>
>set order to tag1
>seek (what the user entered)
>set order to tag2
>
>
>>>>>>How might one go about this?
>>>>>>The field is: SkNo N(4,0)
>>>>>>
>>>>>>Index on SkNo Tag SkNo
>>>>>>Index on STR(SkNo,4,0) Tag SkNoA
>>>>>>
>>>>>>Data:
>>>>>> 250
>>>>>> 350
>>>>>> 680
>>>>>>6500
>>>>>>
>>>>>>Letting the user type, seek on the tag SkNo requires the full number to be typed; seek on the tag SkNoA brings you to 6500 before 680. What index could be created to get to 680 first and 6500 second?
>>>>>>
>>>>>>Thanks,
>>>>>
>>>>>padl(num,width,'0') ?
>>>>>Cetin
>>>>
>>>>Cetin,
>>>>
>>>>I thought about this. Wouldn't this then force the individual to type leading 0's?
>>>
>>>Yes, but would mean more meaningfull to them too. You could pad behind the scenes ?
>>>Cetin
>>
>>I almost feel like I should be using LOCATE FOR AllTrim(Str(SkNo,4,0)) with the order set to the SkNo tag. I'm just wanting the incremental searches to all be approximately the same speed.
Tracy
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