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Q97066: HOWTO: Index a Combined Date and Character Field

Article: Q97066
Product(s): Microsoft FoxPro
Version(s): MACINTOSH:2.5; MS-DOS:2.0,2.5; WINDOWS:2.0,2.5,3.0,5.0,6.0
Operating System(s): 
Keyword(s): kbDSupport
Last Modified: 03-MAR-2000

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The information in this article applies to:

- Microsoft Visual FoxPro for Windows, versions 3.0, 5.0, 6.0 
- Microsoft FoxPro for MS-DOS, versions 2.0, 2.5 
- Microsoft FoxPro for Windows, versions 2.0, 2.5 
- Microsoft FoxPro for Macintosh, version 2.5 
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SUMMARY
=======

There are several different techniques you can use to create an index on
combined Date and Character fields. The first technique illustrated below gives
you a bit more flexibility in sorting. The second two are equivalent, and it is
generally best to use the last example.

  INDEX ON STR(YEAR(dOrder)) + STR(MONTH(dOrder)) + STR(DAY(dOrder)) + cCustID ;
        TAG dateCust

-or-

  INDEX ON DTOC(dOrder, 1) + cCustID TAG dateCust

-or-

  INDEX ON DTOS(dOrder) + cCustID TAG dateCust

REFERENCES
==========

For more information about Date and DateTime functions, consult the Language
Reference.

Additional query words: index cross-platform

======================================================================
Keywords          : kbDSupport 
Technology        : kbHWMAC kbOSMAC kbVFPsearch kbAudDeveloper kbFoxproSearch kbZNotKeyword3 kbFoxPro200DOS kbFoxPro250DOS kbFoxPro250 kbVFP300 kbVFP500 kbVFP600
Version           : MACINTOSH:2.5; MS-DOS:2.0,2.5; WINDOWS:2.0,2.5,3.0,5.0,6.0
Issue type        : kbhowto

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