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Record pointers on empty cursors/tables
Message
From
02/02/2004 09:50:28
 
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
00872917
Message ID:
00872931
Views:
13
Hey

Sergey

I think my answer was correct according to Jay's original description of the problem. However as far as I can see he now adds more information which makes it more complicated. Sorry, have to rush...! :-)

>It's not going to work because RECNO() = 1 for empty table/cursor.
>
>>Yeah, that's pretty much what I thought I would have to do... So, I guess the real issue is that RECNO() is NULL if the table is empty? It has no actual value? Hmmm... I could see cases where RECNO() could be -1 though in the case of added records in a buffer. Maybe the best way would be to check if nRecNo is NULL rather than > 0.
>>
>>>Hi Jay
>>>
>>>This modification should do the trick:
>>>
>>>cAlias = ALIAS()
>>>
>>>nRecNo = RECNO()
>>>
>>>Do Something
>>>
>>>SELE (cAlias)
>>>
>>>IF nRecNO>0
>>>   GOTO nRecNo
>>>ENDIF
>>>
>>>
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