I have to randomly pick rows from a table. I am doing this by using the rand() function inside the qualifying row statement. I want the random picks to collectively add up to 100 or close to 100 but cannot be greater than that (Qty field below). Below is an illustration of the input table

CID Qty
ABC 5
BCD 10
CDE 50
DEF 60
EFG 40

In this particular case there is a convenient 60 & 40 (from CDE and DEF). In their absence, I want the final results to be 50+40 (CDE + EFG)

I am not looking for any kind of fit. The selection of the rows will be completely random and the only criteria is that the randomly selected rows add up as close to 100 as possible.