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I agree with the lack of clarity in the manual. A[n electronic]
Reader Comment card would seem appropriate.
A test over a sufficiently large sample size, probability suggests,
would show that the result of RAND() is _inclusive_ both zero and one.
with sample (rnum, ranv) as
(select 0, rand() from qsys2.qsqptabl
union all select rnum+1, rand() from sample
where rnum<100000
) select * from sample where ranv in (0, 1)
....+....1....+....2....+....3....+....4
RNUM RANV
4,578 0.0000000000000000E+000
17,585 0.0000000000000000E+000
33,670 1.0000000000000000E+000
44,896 1.0000000000000000E+000
63,019 1.0000000000000000E+000
78,113 0.0000000000000000E+000
79,972 1.0000000000000000E+000
97,211 1.0000000000000000E+000
******** End of data ********
Regards, Chuck
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