Decimal places diferent in BO SUM function than from DB

Hi,

I have a column from a Netezza database with 2 decimal places, if I apply a sum() function in BO (report) the decimal places are 4.
The strange part is that if i do exact the same query in a DB2 database the decimal places are always two (like in DB) even if i use a sum function in report.

There is some configuration regarding the database i'm using to set the decimal places in the report level to be the same than in DB?

Edited: I've been studing the problem and I found using a odbc instead of a jdbc makes all the columns have 2 decimal places, and the sum problem doesn't happen. Now my issue is the division. How is possible that with the exact same values with two decimal positions, in BO and exporting to excel the last decimal place is different in some cases

Example:

Lets say A/B with A=13549678065,560000 and B= 21629484348,690000. With Netezza result is 62,6444803173527 and Db2  62,6444803173528

Thanks for your time.