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Forum:
Visual FoxPro
Catégorie:
Autre
Titre:
Versions des environnements
Visual FoxPro:
VFP 9 SP1
Divers
Thread ID:
01547863
Message ID:
01547873
Vues:
57
>>Hi,
>>
>>I have a case where I need to select records when one of three integer fields equals to some set value. For example, say table has fields Fld1 (Int), Fld2 (int), Fld3 (int). I want to find all records where a one of the fields has value nNumber. So the way I could do it as:
>>
>>
>>select * from MyTable where Fld1 = nNumber or Fld2 = nNumber or Fld3 = nNumber
>>
>>
>>Is there a faster approach that would hopefully work in both VFP and SQL Server? Note that the table has an index on Fld1, and Fld2, and Fld3.
>>
>>TIA.
>
>One alternative (just a shorter syntax):
>
>
>select * from myTable where nNumber IN (Fld1, Fld2, Fld3).
>
>
>They will behave the same as your original code, just a shorter code.
>
>There is no faster approach for this problem.

Thank you.
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