What is a primary key?
A) A field (or group of fields) that uniquely identifies a given entity in a table.
B) A primary key of one table that appears as an attribute in another table and acts to provide a logical relationship between the two tables.
C) Characteristics or properties of an entity.
D) A field (or group of fields) that uniquely identifies a given attribute in a table.
Correct Answer:
Verified
Q1: In the relational database model,what is a
Q3: Which of the following is correct in
Q4: What is a foreign key?
A) A field
Q7: Why do relational databases use primary keys
Q10: Which of the following measures how quickly
Q14: What are characteristics or properties of an
Q15: Which of the following is true in
Q20: Which of the following types of information
Q20: What are the rules that enforce basic
Q211: What are the rules that help ensure
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