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Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00426536
Message ID:
00426563
Vues:
27
Hi, Michelle!

Yes you can, just some programming tricks. See code sample below, in bold - differences



if !eof()
lcPrev = MyField
SKIP

SCAN REST && scan from current position till the end
lcNext = MyField

< do stuff here using current record plus the stuff gathered from other
records >
lcPrev = MyField
ENDSCAN
endif

HTH.


>Not using buffering. I'm not sure how that would help?
>
>What I'm trying to do is this:
>
>
>SELECT myTable
>SCAN
>  lcPrev = < field from previous record >
>  lcNext = < field from next record >
>  < do stuff here using current record plus the stuff gathered from other
>   records >
>ENDSCAN
>
>Because I'm scanning, I didn't want to be jumping around for fear of confusing VFP. Do you think I'm safe in doing this:
>
>SELECT myTable
>SCAN
>  SKIP -1
>  lcPrev = mytable.field
>  SKIP 2
>  lcNext = mytable.field
>  SKIP -1
>  lcNext = mytable.field
>  < do stuff here using current record plus the stuff gathered from other
>   records >
>ENDSCAN
>
>Obviously, I need code to check for the ends of the table, but I wanted to keep it simple for the example. Can I do that without the SCAN losing track of where it is?
>
>Thanks,
>
>Michelle
>
>
>>Why don't you want to move the record pointer? If you are using Optimistic Table buffering, it shouldn't matter.
Vlad Grynchyshyn, Project Manager, MCP
vgryn@yahoo.com
ICQ #10709245
The professional level of programmer could be determined by level of stupidity of his/her bugs

It is not appropriate to say that question is "foolish". There could be only foolish answers. Everybody passed period of time when knows nothing about something.
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