ITX202 - Databases Part 3
Presentation
•
Computers
•
11th Grade
•
Medium
Andre Purcell
Used 2+ times
FREE Resource
6 Slides • 5 Questions
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ITX202 - Databases Part 3
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3
4
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Multiple Choice
What type of relationship should we not use in our database structure?
One-to-One
One-to-Many
Many-to-Many
8
Multiple Choice
Complete the sentence below.
________ integrity is a rule that states that every entity must have a primary key field and the values in that field must be unique to each record.
Entity
Primary
True
False
9
Multiple Choice
Complete the sentence below.
A ____________ relationship is where a single record of a table is related to a single record of another table.
Many-to-many
Many-to-one
One-to-one
One-to-many
10
Multiple Choice
What is a candidate key?
Any attribute, or group of attributes, that can uniquely identify a tuple in a relation.
Any attribute, or group of attributes, that has no super key subsets.
Any attribute, or group of attributes, that has been selected to be the unique identifier of each tuple in a relation.
A combination of two fields that together can uniquely identify a record.
11
Multiple Choice
Complete the sentence below.
A _____ key is an attribute of a table that matches a primary key attribute in another table to create a relationship.
Candidate
Primary
Foreign
National
ITX202 - Databases Part 3
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