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De
03/02/1997 04:32:54
 
 
À
02/02/1997 18:03:51
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Titre:
Divers
Thread ID:
00018851
Message ID:
00019105
Vues:
52
PMFJI people,

Have you thought of using PhDbase?

it doesn't just index memo filelds, it will index any character or memo field and its retrieval is on a par with SQL - for simple expressions it's fast, complex expressions you can make as slow as a HAVING clause <g>.

>> >>SELECT mytable
>> >>SET FILTER TO
>> >>alltrim(SUBSTR(ctitle,atc((substr(cname,1)),ctitle),len(cname)))=cname
>> >
>> >Do you have a tag on
>> alltrim(SUBSTR(ctitle,atc((substr(cname,1)),ctitle),len(cname)))?
>>
>> No. Do you think that is the better way to do it?
>
>most probably - YES
>I would also try to simplify the expression and do this in stages
>the later stages would be faster as you wil have a smaller sub-set of record to "work" on
>commands like ATC etc. take longer time to evaluate than simple indexes
>
>Arnon
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