DOCUMENT:Q88987  02-FEB-2000  [foxpro]
TITLE   :How to Calculate the Approximate Size of a .DBF File
PRODUCT :Microsoft FoxPro
PROD/VER:MS-DOS:1.0,1.01,1.02,2.0,2.5,2.5a; WINDOWS:2.5,2.5a,3.0
OPER/SYS:
KEYWORDS:

======================================================================
-------------------------------------------------------------------------------
The information in this article applies to:

 - Microsoft Visual FoxPro for Windows, version 3.0 
 - Microsoft FoxPro for MS-DOS, versions 1.0, 1.01, 1.02, 2.0, 2.5, 2.5a 
 - Microsoft FoxPro for Windows, versions 2.5, 2.5a 
-------------------------------------------------------------------------------

The following formula calculates the size of a .DBF database file

   (RECSIZE() * RECCOUNT())+HEADER()+1

where:
 

 - RECSIZE returns the number of bytes for each record.

 - RECCOUNT returns the number of records in the .DBF file.

 - HEADER returns the size of the DBF header. The header includes all the
   information about the .DBF file, including field names and sizes.

This information can be very useful when you are trying to write
backup routines for an application. You can use this formula in
conjunction with the DISKSPACE function to determine if the backup
copy of the database will fit on a disk.

Additional query words: VFoxWin FoxDos FoxWin 1.00 data

======================================================================
Keywords          :  
Technology        : kbVFPsearch kbAudDeveloper kbFoxproSearch kbZNotKeyword3 kbFoxPro200DOS kbFoxPro250DOS kbFoxPro250aDOS kbFoxPro250 kbFoxPro250a kbVFP300
Version           : MS-DOS:1.0,1.01,1.02,2.0,2.5,2.5a; WINDOWS:2.5,2.5a,3.0

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.  MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO
EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.  SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 2000.