On Thu, Oct 22, 2015 at 11:55 PM, Igor Tandetnik <igor at tandetnik.org> wrote:
> On 10/22/2015 4:25 PM, Rousselot, Richard A wrote: > >> FWIW, MySQL and Oracle both return all yes for that query. >> > > In MySQL, 9.2 is a literal of DECIMAL type, which is in fact represented > as a finite decimal fraction. SQLite doesn't have such a type. You would > likely observe similar results in MySQL if you write your constants like > this: 9.2e0 (scientific notation makes them have FLOAT or DOUBLE type). > And oracle's NUMBER can be up to 20 bytes (21 unsigned), stores number is base-100, i.e. each byte represents 2 base-10 digits. http://www.orafaq.com/wiki/Number SQLite only uses IEEE double, which often cannot represent accurately even small (as in text) numbers with a decimal point. You can use Oracle's BINARY_DOUBLE to force it using an IEEE double. FWIW. --DD
