Re: [SQL] Decimal precsion?

> >
> > >
> > > Yeah I finnally figured that out, wish the docs would cover things like
> > > that.
> > >
> > > I went through two books (which said its just liek COBOL! and then
> > > ignored me) and finnally the mysql pages had a good right up.
> > >
> > > I still thing the 0.0 thing is an error.
> > >
> >
> > Yes, and why doesn't this generate an error:
> >
> > test=> insert into example values(0.12345);
> > INSERT 19488 1
> > test=> insert into example values(0.1234567);
> > INSERT 19489 1
> > test=> select * from example;
> > other
> > ------
> > 0.1235
> > 0.1235
> > (2 rows)
> >
> > Jan, can you comment on this. I found the code in numeric.c, but can't
> > figure out what the proper test should be.
>
> Haven't seen the original message, but it looks to me that
> the column is declared as decimal with 4 digits after the
> decimal point. Therefore, all values get rounded at the time
> of INSERT/UPDATE. The above looks numerically right to me.
>
> Isn't that behaviour correct? Does the standard define
> something else?

OK, I wasn't sure on whether rounding was correct.

However, the original message had DECIMAL(4,4) and he could insert 0.1,
but not 0.0.

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