Re: Alphabetizing detail records to a header file

[Rob Berendt <rob@xxxxxxxxx>]

I am trying to understand this.

Am I right?

NAMEFILE
has
KEY, NAME, ADDRESS, etc

DETAILFILE
has
KEY, PLUSUNIQUEKEY, etc

examples

NAMEFILE
KEY     NAME    ADDRESS
0001    Ralph   1313 Mockingbird lane
0002    Malph   1210 Robin Drive
...

DETAILFILE
KEY     PLUSUNIQUEKEY
0001    001
0001    002
0002    001
0002    002
0002    003
...

I have some ideas in mind but first can you give me a sample of what you are 
trying to 
achieve.  (Seems like one respondent doesn't know what the term 'denormalized' 
meant.)





boothm@earth.goddard.edu on 12/05/99 01:57:29 PM
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Subject:        Alphabetizing detail records to a header file

I have an idea I may have missed something obvious.

Here's the situation:  I have a Header File of names and addresses. The
Header File has a unique identifying number for each name.  The numbers
are assigned as each new name is added to the file so the numbers really
amount to arrival sequence, not  to Alphabetic Sequence.   I do have a
logical over the Header File based upon the name, so that any reports can
be generated in alphabetic order.  All this seems simple and straight
forward.

Now comes the part where I think I am missing something:  I also have an
application with a small detail file for a  specialized application.  The
small group is probably going to be about 300 records but certainly never
over 1,000 records.  I've linked it logically with the Header File by the
unique Header File I.D. number. To present an alphabetic subfile on the
screen of that small grouping I have to read through the entire alpha
logical on the Header File.  As you can imagine performance is horrid.

In the past I've loaded an *INZSR array, and I've denormalized the data.
Neither method has felt right.  Is there some simple thing I've missed?

Thanks.
_______________________
Booth Martin
boothm@earth.goddard.edu
http://www.spy.net/~booth
_______________________



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