When an if statement is placed within the conditionally-executed code of another if statement, this is known as

The ________ utility of Access helps reduce the size of a database

Fill in the blank(s) with correct word

The table shown lists dentist/patient appointment data. A patient is given an appointment at a specific time and date with a dentist located at a particular surgery. On each day of patient appointments, a dentist is allocated to a specific surgery for that day.

What will be an ideal response?