To change a column that currently rejects null values so that it accepts null values, use the ____ clause of the ALTER TABLE command

A classmate of yours has coded the following version of selectionSort().Will it work? Explain.

``` /** * Sort the array elements in ascending order * using selection sort. * @param a the array of Objects to sort * @throws NullPointerException if a is null */ static void selectionSort( Object[] a ) { if ( a == null ) throw new NullPointerException(); // while the size of the unsorted part is > 1 for ( int unsortedSize = a.length; unsortedSize > 1; unsortedSize-- ) { // find the position of the largest // element in the unsorted section int maxPos = 0; for ( int pos = 1; pos < unsortedSize; pos++ ) if ( a[pos] > a[maxPos] ) maxPos = pos; // postcondition: maxPos is the position // of the largest element in the unsorted // part of the array // Swap largest value with the last value // in the unsorted part Object temp = a[unsortedSize – 1]; a[unsortedSize – 1] = a[maxPos]; a[maxPos] = temp; } } ```

_____ is a set of integrated programs that manage a company's vital business operations for an entire organization; even a complex, multi-site, global organization.

Fill in the blank(s) with the appropriate word(s).