jts_2003 (8/17/2010)
So would it be fair to say that the third argument of ROUND, function, actually ensures you round down instead of up, if you set it to a non zero value?
Nope. It truncates and then does the rounding. ROUND(5/3.0, 3,2) would have produced a result of 1.67 (up from the nominal value of 1.666666).