A relation that has no multivalued attributes is in _____ normal form.

Which statement is associated with two seperate entities. a) Attribute b) Entity Type c) Reflective Relationship d) Relationship

A relation FarmVisit is defined below with attributes in the table headings. FarmVisit visitorID visitorName date farmID farmName t1 H001 John 1 Feb 2021 A10 Green Field t2 Н005 Ashley 1 Jan 2021 A10 Green Field t3 но05 Ashley 1 Feb 2021 A10 Green Field t4 H005 Ashley 15 Apr 2021 H02 Есо t5 Но06 Ashley 15 Apr 2021 A11 Green Field a) Write down examples of tuples (i.e., tl, t2) to show neither of the following is a functional dependency: (i) visitorID -> date (ii) date -> farmID b) Write down the functional dependency (FDs) using the above data, which can represent all possible data. The FDs should be non-trivial and the determinants of the FDs should contain minimal number of attributes required. c) Using the tuples given, can (visitorID, farmID) be the primary key of FarmVisit? Explain why. d) What the highest normal form by which the FarmVisit relation can be classified? Explain why.

Each relationship is mapped into a relation? true or false

14. A _____ is a property of the entire relation, rather than of the individual tuples in which each tuple is unique. a. Rows b. Key c. Attribute d. Fields

What is the link between a relation's main key and the functional dependencies among all of its attributes?

A potential key is a piece of a composite primary key that is itself an attribute.