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access thread: difference between records
Message #1 by "Hendrik Klaver" <hendrik_klaver@h...> on Fri, 21 Mar 2003 09:16:04
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Hello everybody,
Every week I want to import the actual results over the current year.
For example June 2002 25 Result: 4500. I do this with an importprocedure
and then with a query I generate the result of 4500. I also place the
period in the table with that query.
But I like to know the difference between te periode before and the
newest period. Because I want to see the growth.
Period Result Growth
June 2002 25 4500
June 2002 26 4675 175
July 2002 27 4850 175
July 2002 28 5050 200
July 2002 29 5225 175
July 2002 30 5550 325
August 2002 31 5625 75
August 2002 32 5811 186
August 2002 33 5994 183
August 2002 34 6214 220
September 2002 35 6375 161
September 2002 36 6565 190
................
Is it possible to make a query which calculates the growth?
hendrik
Message #2 by gburke4@b... on Sat, 22 Mar 2003 00:44:20
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Hi there,
2 ways to do this.
1st is by using VB - however, I see you wish to use a query, so
2nd - copy the data into a second table, changing the date by one day (or
having a second field called "newdte" which is the original date+1 day.
Then link these two tables on the date field (or newdte), and calculate
the difference.
ie
table1 table 2
Jun 26 4675 Jun 26 4500 Diff = 175 (growth)
Jun 27 4850 Jun 27 4675 Diff = 175 (growth)
Regards
> Hello everybody,
> Every week I want to import the actual results over the current year.
F> or example June 2002 25 Result: 4500. I do this with an importprocedure
a> nd then with a query I generate the result of 4500. I also place the
p> eriod in the table with that query.
> But I like to know the difference between te periode before and the
n> ewest period. Because I want to see the growth.
> Period Result Growth
J> une 2002 25 4500
J> une 2002 26 4675 175
J> uly 2002 27 4850 175
J> uly 2002 28 5050 200
J> uly 2002 29 5225 175
J> uly 2002 30 5550 325
A> ugust 2002 31 5625 75
A> ugust 2002 32 5811 186
A> ugust 2002 33 5994 183
A> ugust 2002 34 6214 220
S> eptember 2002 35 6375 161
S> eptember 2002 36 6565 190
.> ...............
> Is it possible to make a query which calculates the growth?
> hendrik
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