Do the Even questions from section 9.4.4.

(It wouldn't hurt if you studied the answers to the odd questions as well.)

In addition, do this problem:

1. In the 'calculating a row sum' PROC, would it matter if your program were using only some of the columns available? That is, you have allocated 20 columns in your table structure, but the user is only using 5 of them? If so, make any adjustments necessary to the calc_row_sum PROC. If not, explain why not.

This assignment is Level 2.