$1\mathrm{.}8$ Figure $1-42$ shows a list that is used by a veterinary office. Describe three modifica$-$

tion problems that are likely to occur when using this list.

$1\mathrm{.}9$ Name the two themes in the list in Figure $1-42.$

$1\mathrm{.}10$ What is an ID column?

$1\mathrm{.}11$ Break the list in Figure $1-42$ into two tables, each with data for a single theme.

Assume that owners have a unique phone number but that pets have no unique col$-$

umn. Create an ID column for pets like the one created for customers and courses

for the Art Course database tables in Figure $1-12.$

$1\mathrm{.}12$ Show how the tables you created for question $1\mathrm{.}11$ solve the problems you de$-$

scribed in question $1\mathrm{.}8.$

FIGURE $1-42$

The Veterinary Office List$-$Version One

Excel for Microsoft $365,$ Windows $11,$ Microsoft Corporation.