Although many of these storage media have high capacity, a backup tool with compression capabilities is a big plus, eliminating the inconvenience of multiple disks or large uploads.

But thanks to advancements in image compression, microprocessors and wireless-data bandwidth, the smartphone may prove to be, like beepers, an essential tool for on-the-go doctors.

Using the DB2cmd SQL tool, alter the AW fact tables noted in (a) to enable row compression.