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  3. October 2023

Re: When did DB2/400 get 40-digit numbers?

On 10/10/23 5:49 PM, Javier Sanchez wrote:
Jim, AFAIK, binary can be up to 64-bits, so it has a precision of 20
significant digits (in decimal), being the largest numeric positive
expression 18,446,744,073,709,551,616 (take the 64th power of 2). In FLOAT
(which is like a double in "C") will give you at most 15 digits if
FLOAT(8), and like half of that or so (don't remember right now) for
FLOAT(4), including the integral part and the decimal part. Someone may
correct me if I'm wrong.

Better choose packed or zoned. And always think of integral digits and
decimal digits totalling at most 63 as Barbara said.

I actually would have had it easier if none of this had ever happened.

All it means to me is that I am probably going to be spending many hours digging into MI source, teaching it how to process those fields without blowing up.

--
JHHL


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