Examlex
Discriminator attributes can be represented in relational designs.
Tachycardia
A condition where the heart rate exceeds the norm for an individual's age, resting at over 100 beats per minute.
Orthopnea
Difficulty in breathing that occurs when lying down and is typically relieved by sitting or standing up, often associated with heart failure.
Hypoxia
A condition in which the body or a part of the body is deprived of adequate oxygen supply at the tissue level.
Chest Tube
A medical device inserted into the pleural space around the lungs to remove air, fluid, or pus, often used after surgery or trauma.
Q8: The values of a surrogate key have
Q13: An identifier may be _.<br>A)composite<br>B)optional<br>C)a relationship<br>D)minimal
Q20: A subtype inherits all the attributes of
Q38: The word key indicates a field or
Q50: The notation 1:N shows a relationship's maximum
Q57: What is the process and what are
Q60: A weak entity is an entity that
Q61: Which of the following is not a
Q66: An identifier of an entity instance must
Q86: In the SQL statements SELECT C1.CustName,C1.SalesRepNo<br>FROM CUSTOMER