The COMPARE_DECFLOAT function returns an ordering for DECFLOAT values.
Example:
COMPARE_DECFLOAT(2.17E350, 2.17E350) ==> 0 COMPARE_DECFLOAT(2.17E350, 2.170E350) ==> 2 COMPARE_DECFLOAT(2.170E350, 2.17E350) ==> 1