Re: Limiting to specific field value of type float

["Andy J" <andy@xxxxxxxxxxxxxxxxx>]

Alec

Exact matches on float values are notoriously unreliable - the problem with
the math is that it can often turn out the value at something like :-

123.539999999999999999999999999999999999999

which won't produce an equality match.

For this you would probably better use a DECIMAL field.

Andy

----- Original Message -----
From: "Alec Solway" <alec20@xxxxxxxxxxxx>
To: <mysql@xxxxxxxxxxxxxxx>
Sent: Saturday, March 03, 2001 6:51 PM
Subject: Limiting to specific field value of type float


> Hi,
>
> I'm having some trouble with the following:
>
> I have a sample table that has one record where price == 123.54, however
>
> select * from gpl where price=123.54
>
> returns an empty set. If I set price to an integer value that's also in
the
> table, it works. e.g.
>
> select * from gpl where price=500
>
> returns the proper results. price is a column of type float.
>
> TIA.
> Alec Solway
>
>
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