[AccessD] Rounding Error - A2K

Reuben Cummings accessd at gfconsultants.com
Fri Dec 11 09:50:04 CST 2009


Nope.  Just did it again and you're right.  Yours works fine.
I must have misplaced something when I was trying it Wednesday night.
Sorry.

Thanks, Gustav.

Reuben Cummings
GFC, LLC
812.523.1017


> -----Original Message-----
> From: accessd-bounces at databaseadvisors.com 
> [mailto:accessd-bounces at databaseadvisors.com] On Behalf Of 
> Gustav Brock
> Sent: Thursday, December 10, 2009 8:45 AM
> To: accessd at databaseadvisors.com
> Subject: Re: [AccessD] Rounding Error - A2K
> 
> 
> Hi Reuben
> 
> I did some tests with no errors and returning the correct 
> data type. Are you sure about this?
> 
> /gustav
> 
> 
> >>> accessd at gfconsultants.com 10-12-2009 12:57 >>>
> Thanks.  That appears to work.  However, I think your 
> paranthesis are off.
> For anyone wanting this for future use I had to change it to...
> 
> >   CurResult = CCur((CurAmount * CCur(100 * SngPercentage))/ 100)
> 
> Only added two paranthesis (to completely inclose the 
> multiplication part),
> but it makes sure the math gets done before it gets divided by 100.
> 
> Thanks for the help.
> 
> Reuben Cummings
> GFC, LLC
> 812.523.1017
> 
> 
> > -----Original Message-----
> > From: accessd-bounces at databaseadvisors.com 
> > [mailto:accessd-bounces at databaseadvisors.com] On Behalf Of 
> > Gustav Brock
> > Sent: Thursday, December 10, 2009 4:18 AM
> > To: accessd at databaseadvisors.com 
> > Subject: Re: [AccessD] Rounding Error - A2K
> > 
> > 
> > Hi Reuben
> > 
> > There is your explanation: cur * sng returns a double.
> > 
> > What you could do is to keep storing the percentage as a 
> > single. When using it for calculation, do:
> > 
> >   CurResult = CCur(CurAmount * CCur(100 * SngPercentage) / 100)
> > 
> > This will calculate using your six decimals and (with CCur) 
> > round the result to four decimals.
> > 
> > /gustav
> > 
> > 
> > >>> accessd at gfconsultants.com 10-12-2009 03:16 >>>
> > Stuart and Charlotte, I'll play with the single/double issue.
> > 
> > The dollar amounts are all currency.
> > 
> > The percentage (.25xxx) is a single.  Not sure why as this is 
> > the first time
> > I've ever used a single.
> > All these years and I've never used single and the first time 
> > I do it BITES
> > me.
> > I wanted to use currency for the percentage, but the state 
> > defines these
> > rates to 6 decimals.
> > 
> > Reuben Cummings
> > GFC, LLC
> > 812.523.1017
> 
> 
> 
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