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Article #25787

Re: dBase III+ (was dBSAE Fat Kil (was Re: corrupt FATs?))

#25787
From: Karl Denninger
Date: Sun, 20 Mar 1988 20:12
36 lines
2179 bytes
In article <1218@silver.bacs.indiana.edu> regoli@silver.UUCP (michael regoli) writes:
>In article <vu0112@bingvaxu.cc.binghamton.edu> (Cliff Joslyn) writes:
>-In article <bill@wsccs.UUCP> (Bill Housley) writes:
>->Once I did the famous DBaseIII-editor-file to big-fry
>->your fat-#@$^&*#$  mistake and spent 4 hours finding a disk utility that
>->would help me re-construct it.  
>-
>-Uh, could you *please* tell us what this was again?
>
>yes, please elaborate on this problem!  how does it happen?  
>
>and, while on the subject of dbase, can someone tell me about the
>maximum record size for a .dbf file?   i heard after 2,500 records,
>an indexed database file it begins to act flaky...
>...ihnp4!iuvax!silver!regoli

I don't know about the FAT killer, but I do know about wierd index file
problems and dBase III.

Seems as though your index expressions should be an exact multiple of 4
bytes.  Never did figure out exactly what the failure mode was, but things
got really wierd if we violated this assumption.

We saw problems way before 2500 records, though -- like immediately.  Then
again, our products do some rather "interesting" things with index files :-)

Right now we have 3500+ records in a couple of dBase III databases (on
clipper and foxbase) and see no trouble at all...

Both the Clipper and Foxbase + do not exhibit the 4-byte anomoly (guess what 
we do our development under now :-).

----
Karl Denninger		       |  Data: +1 312 566-8912
Macro Computer Solutions, Inc. | Voice: +1 312 566-8910
...ihnp4!ddsw1!karl	       | "Quality solutions for work or play"
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Message-ID: <888@ddsw1.UUCP>
Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!bbn!rochester!ur-tut!sunybcs!boulder!ncar!oddjob!gargoyle!ddsw1!karl
References: <9765@shemp.CS.UCLA.EDU> <315@wsccs.UUCP> <966@bingvaxu.cc.binghamton.edu> <1218@silver.bacs.indiana.edu>

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!bbn!rochester!ur-tut!sunybcs!boulder!ncar!oddjob!gargoyle!ddsw1!karl
From: karl@ddsw1.UUCP (Karl Denninger)
Newsgroups: comp.sys.ibm.pc
Subject: Re: dBase III+ (was dBSAE Fat Kil (was Re: corrupt FATs?))
Message-ID: <888@ddsw1.UUCP>
Date: 20 Mar 88 20:12:04 GMT
References: <9765@shemp.CS.UCLA.EDU> <315@wsccs.UUCP> <966@bingvaxu.cc.binghamton.edu> <1218@silver.bacs.indiana.edu>
Reply-To: karl@ddsw1.UUCP (Karl Denninger)
Organization: Macro Computer Solutions, Inc., Mundelein, IL
Lines: 36
Summary: Two things...