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SCAN vs. SELECT???
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De
21/09/1998 14:29:40
 
 
À
21/09/1998 13:40:55
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Divers
Thread ID:
00139130
Message ID:
00139179
Vues:
41
Hi Ed (and Perry)!!

You can actually SCAN...ENDSCAN a remote table regardless of back-end source...not that you'd want to.


>>
>>I'd like to know, would a SCAN...ENDSCAN retrieve data faster than an SQL-SELECT from a remote server???? I'd like to add an OLEBar for download progress into my form, and I was wondering which would be the better to use.
>>
>>I almost forgot, my SELECT has 3 conditions to meet.
>>
>>TIA
>
>Probably, you mean VFP database, and not back-end server (because SCAN is applicable to VFP only). If this is a case, then the difference is following: SEEK/SCAN will be faster if you retrieve few records (few may mean even few hundreds). However, the bigger is number of retrieved records, the faster comparable SQL-SELECT will be.
------------------------------------------------
John Koziol, ex-MVP, ex-MS, ex-FoxTeam. Just call me "X"
"When the going gets weird, the weird turn pro" - Hunter Thompson (Gonzo) RIP 2/19/05
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