Case Based Critical Thinking Questions Case 5-3

question 88

Multiple Choice

Case Based Critical Thinking Questions Case 5-3
Marie works for a busy pediatrician's office. The practice has a sophisticated database for all records and information that pertain to the practice. The doctor for whom she works is participating in an academic study, and she needs a report that lists the patient's name, date of birth, and the names of parents or guardians. The doctor would like to see the patient's full name in the format Lastname, Firstname even though they are separate fields in the database. She would also like to see the data for the fields Mother, Father, and Guardian, regardless of whether or not data is actually entered in those fields. Based on the doctor's requirements for the report, Marie must create a query on which to base the report.
Marie creates the following expression as a new field in the query that she will use to create the report requested by the doctor PatientName: [LastName] & ", " [FirstName] .  This expression is an example of ____.

• A) IsNull
• B) concatenation
• C) nonnull
• D) an expression using a logical operator

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Definitions:

Static

Unchanging; not dynamic. In programming, it refers to variables or methods belonging to the class itself rather than any instance of the class.

Unique Number

A numeral identifier assigned to uniquely identify an entity within a specific context or system.

IP Address

A unique numeric identifier assigned to each device on a network, facilitating communication and data transfer.

IPv6

The most recent version of the Internet Protocol (IP), designed to address the exhaustion of IP addresses available under IPv4 by using 128-bit addresses.