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On Fri, Feb 12, 2016 at 9:20 AM, Charles Wilt <charles.wilt@xxxxxxxxx> wrote:
Note that precision is the total number of digits, both left and right of
the decimal point. Scale is the number of digits to the right of the
decimal. Both SQL and RPG will by default drop decimal digits in order to
provide more digits to the left.
(p,s)
(A-B) --> (27,4)
(A-B) / B --> (31,0)

Hm. Where did the (27, 4) come from? Was that meant to be (31, 4)?

The take away is be careful dealing with small values with large precision.

This is very true. Unfortunately, you have to be *particularly*
careful when using large-precision fixed point variables in RPG and
SQL. To me, the ways in which fixed point arithmetic fails are
quirkier and more unintuitive than the ways in which floating point
arithmetic fails.

John Y.

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