Premium Essay

Database Notes Final

In: Computers and Technology

Submitted By riccirich85
Words 784
Pages 4
Primary key is repeated on a second table to make a relationship it’s called…
Foreign key
Column or columns that uniquely identifies each row in a table …
Primary key
Which of the following is the best definition for a database attribute …
Something that describes some part of an entity
Which of the following are not common functions of relational database …
Providing backup and security
Which best defines data integrity …
The accuracy and correctness of the data in the database
Which describes what is meant by the term stakeholder …
Anybody effected
Document that summarizes and displays data is called a …
Report
Which of the following that best defines the term requirement …
Something the database must do to fulfill its purpose
Document that has a primary purpose of gathering data input is called …
Form
Which of the following defines the term exception …
A variation of how things are done and recorded an alternative process
Which of the following represents the advantage of a surrogate key …
Surrogate key is always guaranteed to be unique
Which of the following represents the advantage of a natural key …
Helps protect the integrity by preventing accidental entry of duplicate rows
Which of the following best defines a surrogate key …
Random key with no business meaning
Which of the following best defines a natural key …
B ?
Which of the following best defines a candidate key …
D ?
What type of relationship does the ERD depict …
One to many
Which of the following best defines the function of a linking entity …
Used to resolve many to many relationships with one to many relationships
Which of the following is a term for the number of permitted records in a related entity …
Cardinality
An insertion anomaly occurs …
When you cannot enter data because other data is required
An update anomaly occurs …
When you must edit the same…...

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