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- Path: sparky!uunet!gatech!news.byu.edu!yvax.byu.edu!cunyvm!appms
- Newsgroups: comp.databases
- Subject: dBASE IV multiple index files
- Message-ID: <92213.155602APPMS@CUNYVM.BITNET>
- From: Alexandre Pechtchanski <APPMS@CUNYVM.BITNET>
- Date: Friday, 31 Jul 1992 15:56:01 EDT
- Organization: City University of New York/ University Computer Center
- Supersedes: <92213.120846APPMS@CUNYVM.BITNET>
- Lines: 24
-
- Hi, everybody:
- I've heard a statement that seems pretty doubtful to me:
- "... With .MDX files, all indexes are updated automatically, with
- only one DOS File Handle, instead of one DOS File Handle for each index.
- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- This frees up RAM and ... to make program more efficient (read faster)."
- ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^
- I was always pretty sure that no matter what you do you have to allocate
- one DOS file handle (either explicitly or implicitly) for each file you
- access. For dBase it spells one handle for each .DBF + one for each
- .NDX etc. The only way (IMHO) to circumvent it is to use one handle
- for different files at different time, but it sure will lead to
- _in_efficiency of program!
- Can anybody confirm/disprove the above statement? (I mean the quoted
- one, also all are welcome to spill flames on me for my apparent
- stupidity ;-) )
-
- Thanks in advance
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