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How to tell if a table has no nondeleted records (empty)
Message
De
03/09/1998 12:00:21
 
 
À
03/09/1998 00:34:17
Larry Long
ProgRes (Programming Resources)
Georgie, États-Unis
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00132456
Message ID:
00132824
Vues:
26
>>>how is an efficient way to tell if a table has no active records.
>>>
>>>thanks, brenda
>>
>>SET DELETED ON
>>COUNT TO nTotal
>>IF nTotal=0
>>...
>You should have and index tag on DELETED(), example...
>INDEX ON DELETED() TAG ISDELETED
>Having this will greatly increase performance if you have SET DELETED ON in your app.
>
>Assuming you have done this, you could...
>
>found_deleted=SEEK(.T.,'yourtable','ISDELETED')
>
>or conversely...
>found_active=SEEK(.F.,'yourtable','ISDELETED')
>
>//:^)

Larry, do you really assume that I don't use/know about DELETED() tag?
Edward Pikman
Independent Consultant
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