Question

I have a table with products that have columns like this: price[decimals 8,5] and decimals [tinyint – max value is 5].
When I list products must show price according to the decimals specified in decimals column.
I tried something like this(with mysql)

select p.price, round(p.price, p.decimals) as price, p.decimals
from product p

but it returns

100.35667   100.35700   3

and i would like to be 100.
I also see that ‘Round’ rounds the number which is not my scope.
Regards.

Answer 1

You need the FORMAT function:

http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_format

SELECT 
    P.price, 
    FORMAT(P.price, P.decimals) as price, 
    P.decimals
FROM 
    product P;