Re: In SQl, how do you determine if fielda divided by field b has any remainder?

Hi Rob

Your formula is a variation on what is used to calculate the modulus, according to the documentation -

MOD(x,y) = x - (x/y) * y where x/y is the truncated integer result of the division

Your WHEN could be (fielda / fieldb) * fieldb - fielda > 0 or maybe more general as int(fielda / fieldb) * fieldb - fielda > 0

This aligns with Birgitta's comment, which allows mod() to work with more general scenario of values with decimal places.

Regards
Vern

On 1/15/2020 9:22 AM, Rob Berendt wrote:

Birgitta,
Are you sure about that?
CREATE TABLE QTEMP.MYTABLE2 (FIELDA INT NOT NULL WITH DEFAULT,
FIELDB INT NOT NULL WITH DEFAULT)

select fielda, fieldb,
case when (fielda / fieldb) * fieldb <> fielda then 'remainder'
else 'no remainder' end
from qtemp.mytable2

FIELDA FIELDB CASE expression
2 1 no remainder
99 13 remainder
7 2 remainder
7 3 remainder
7 4 remainder
7 5 remainder
7 7 no remainder
7 6 remainder


Rob Berendt