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SCAN Confused?
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To
06/06/2001 09:49:08
Carol Dewar
Magram Computer Services Llc
Saugerties, New York, United States
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Title:
Miscellaneous
Thread ID:
00515720
Message ID:
00517078
Views:
16
Just trying to create a new branche on the thread here {g}

Maybe it's off topic, maybe it isn't, but has anyone of you encountered the following :

Create a simple loop, writing seconds() into a table (or low-level ascii) for a number of seconds, and then read it back sequentially. Now surprise surprise :))):(( <> (*&
the time sets back !
I mean, once in a while a next record contains an older time than a previous one. How is that huh ?
Note : For sure this was FPDos, and I'm not sure anymore whether this is in VFP too. However, if it isn't IMO it's just because of the full 32 bit operations, and I think if you try long enough it will be in VFP too.
I remember this (also ...) to happen at frequent intervals.
For sure this has to do with the resolution of the clock-ticks (1/18) and some instructions read ahead ? well, it's on a 486 too ... so guess not.


Now if you really want problems :

Have a normal operating PC writing once in a minute or so Seconds() to a low-level file. Suprise again :
Once in the so many days time just stops or ... in the middle of the day the date gets to the next day, time stops, and once this new day is there, time starts running again. Note : I think we have some patch for this (don't know anymore).

Or another, being rather "normal" :

From VFP perform a !WP (who does this ???);
now your PC's clock starts running like a crazy.

Or this one :
Having your PC, your server, and a WTS (Citrix ?) having compiled you programs on the fly. I mean, leaving that to another machine, by itself synchronizing the time with the server. Once the WTS's clock starts running early (because sync is performed only at startup of WTS which runs for many days without rebooting) you get situations that there is no way to let VFP to to catch the actual compiled version (the older version in the PC's cache is seen as the newest one or so). Now don't be afraid : this can even lead to blocks of the program getting reloaded while other parts don't !!. Well, I didn't believe that one untill I saw it.

Last one for today :
I have NT4 and work in a Dos-box editor. Of course I own the worlds speed-record on typing (to be honest, that's my sister doing a 800 per minute or so *and* telling about her holiday at the same time), and I manage to get things type the other way around. Once it's there, let's say wrnong I delete the o carefully watching, and the n get's deleted.

And yes, I have a beer once in a while, but afterwards ...

This was my $2c ;-)
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