In the last episode (Feb 05), Matthias Hoffmann said:
> dear all.
>
> I have a problem using mysql(occured at using phpMyAdmin):
> i send the query:
> DELETE FROM test WHERE user = "test" AND timestamp = "2002-02-05 21:42:53"
> AND var1="1000.1" LIMIT 1
> and 0 effect.
> but when var1 has a (INT) value there's no problem:
> DELETE FROM test WHERE user = "test" AND timestamp = "2002-02-05 21:42:53"
> AND var1="1000" LIMIT 1
> might there be a problem using such values?
> has this error already occurded? I just joined this list....
I assume var1 is a float in the first case? Due to rounding issues,
the "=" operator will almost never work on fractions. Use the primary
key to select which record to delete, or use a number range (var1
BETWEEN 1000.009 AND 1000.1001).
--
Dan Nelson
dnelson@stripped
