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Groups > comp.lang.python > #25547
| Date | 2012-07-18 01:01 +0100 |
|---|---|
| From | MRAB <python@mrabarnett.plus.com> |
| Subject | Re: Foxpro goto command and deleted records |
| References | <5005EDC0.6050608@stoneleaf.us> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.2256.1342569875.4697.python-list@python.org> (permalink) |
On 17/07/2012 23:57, Ethan Furman wrote: > In Foxpro if you do a > > GOTO 7 > > with deleted off and record 7 is deleted, the record pointer doesn't > move (at least in version 6). > > I don't like that. > > I see four other options: > > 0) don't move the pointer (listed for completeness) > 1) go to that record anyway > 2) go to the next undeleted record > 3) go to the seventh undeleted record (possibly the least practical) > 4) raise an exception > > Any opinions? > What happens when you 'delete' a record? Does it disappear immediately, or is it merely marked for deletion? If it is marked for deletion, can it be unmarked? Will a marked record be removed when the file is closed, or does the file need to be explicitly purged/compacted? If it is merely marked, then I think the best option is 1, or possibly 4 if the file is compacted when closed.
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Re: Foxpro goto command and deleted records MRAB <python@mrabarnett.plus.com> - 2012-07-18 01:01 +0100
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