How come when I run this code, I get an output of 0.21000000000000002 instead of 0.21?
BEGIN
DECLARE S1 REAL;
DECLARE S2 REAL;
DECLARE Srainfall REAL;
SET S1 = .04;
SET S2 = .17;
SET Srainfall = S1 + S2;
Insert into Statistical_info(City_id, Total_Rain_fall)
values(ID, Srainfall);
END
