Selecting a float in MySQL

Question

I am trying to do a SELECT match on a table based upon an identifier and a price, such as:

SELECT * FROM `table` WHERE `ident`=\'ident23\' AND `         


        

Answer 1

Perhaps something along these lines:

SELECT * FROM table WHERE ident='ident23' AND ABS(price - 101.31) < .01;

Answer 2

It doesn't work because a float is inherently imprecise. The actual value is probably something like '101.3100000000001' You could use ROUND() on it first to round it to 2 places, or better yet use a DECIMAL type instead of a float.