Query problems

I am having a problem in a query, that I did a work around for, but
don't' know why it happens.

We have some dates in MMDDYY format stored as numbers.

In a query I define some result fields as:
Temp1      ARINDT / 100
Temp2      Temp1 * 100
InvYear     ARINDT - Temp2
InvMonth   ARINDT / 10000

Then, in my select records I have
            InvYear      EQ     98
AND    InvMonth   GE     10
OR       InvYear      EQ     99
AND    InvMonth    LE     03

The whole idea being to get the range of records from 10/01/98 to
03/31/99

Well, it works but... I do no have any data for 03/xx/99  I have January
and February but not March, and I don't know why.

To resolve this I finally made yet some more result fields:

Temp3         InvYear * 100
InvYYMM   Temp3 + InvMonth

Then, I select for
           InvYYMM   GE    9810
AND  InvYYMM    LE    9903

Which works, and gives me all the records.

Is this a bug I'm looking at?  I'm on V3R7M0

And do you know of an easier way to do this?

Regards,

Jim Langston

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