On Mon, Aug 20, 2001 at 02:00:29PM +0200, Kloppenburg Ernst (FV/FLI) * wrote:
> On Mon, Aug 20, 2001 at 06:06:22 -0600, Benjamin David Hildred wrote:
> > On Mon, Aug 20, 2001 at 11:08:47AM +0200, Ernst Kloppenburg wrote:
> > > >Description:
> > > with DECIMAL the number of digits before and after the decimal
> > > point is fixed. Thus it should be described in the documentation as a
> > > fixed point number
> > > >How-To-Repeat:
> > the manual is correct. the number is stored internaly as a floating point number
>with all of its benifets and drawbacks. formating information is only used when the
>number is retrieved. if a number is stored in atable with more significant digets
>than the coulum will alow, and the table is later restructured to show aditional
>precision, the number will show mour preciosion. try it.
>
> Hello,
>
> did you maybe mix this up with "DOUBLE(M,D)"? DOUBLE is of course stored
> as a float and M and D control the display at retrieval of a number.
>
> For DECIMAL the manual says
>
> the number is stored as a string, using one character for each
> digit of the value. The decimal point and, for negative numbers,
> the `-' sign, are not counted in M (but space for these are
> reserved). If D is 0, values will have no decimal point or
> fractional part. The maximum range of DECIMAL values is the same
> as for DOUBLE, but the actual range for a given DECIMAL column may
> be constrained by the choice of M and D.
>
> I still think this sounds like *storing* in a fixed point format.
>
> E. Kloppenburg
>
sorry about the misinormation, I was using a verry old manual. recent versions do have
a bcd number types. checking the most recent manual (online) in section 6.2.1: Numeric
Types, in paragraph two it says explecetly that they are not folating point. So what
was the complaint?
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