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Problems with Apostroph in variable!
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À
17/04/1999 07:57:01
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00209007
Message ID:
00209364
Vues:
16
>>>Also, you're hurting yourself needlessly using ALLTRIM() in WHERE clauses; it ensures that the expression will not be Rushmore-optimizable, and depending on the SET environment, may result in unexpected matches using the = operator.
>>>>Thanks in advance for your help!
>>
>>Hi Ed,
>>Yes, the brackets are working fine.
>>With the ALLTRIM(), I once had problems to match the values, if I don't use ALLTRIM. Is there another way to be sure, that the values match?
>
>Assuming that you don't have leading spaces as an issue, I'd use:
>
>cMyVar = 'MyTable.MyField == [" + PADR(this.Value, LEN(MyTable.MyField)) +']'
>
>Which uses the exactly equal comparator, and ensures that the length ofd the compare string is the same as the length of the field.

Hi Ed,
A good idea! I have a similar problem somewhere else:
SCAN
REPLACE This WITH That FOR !EMPTY(THAT)
ENDSCAN
I suppose, this also is not Rushmore optimizable, but using LEN(That)>0 does not solve it: I would have to say again LEN(ALLTRIM(That)>0, which throws me back again. Do you have a suggestion??
Christian Isberner
Software Consultant
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