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Questions and Answers
What is the purpose of normalization in database design?
What is the purpose of normalization in database design?
- To slow down processing speed
- To decrease data redundancy (correct)
- To increase data redundancy
- To complicate table structures
In database design, which process evaluates and corrects table structures to minimize data redundancies?
In database design, which process evaluates and corrects table structures to minimize data redundancies?
- Fourth Normal Form (4NF)
- Denormalization
- Normalization (correct)
- First Normal Form (1NF)
Which normal form is considered better than First Normal Form (1NF) from a structural point of view?
Which normal form is considered better than First Normal Form (1NF) from a structural point of view?
- Denormalization
- Fourth Normal Form (4NF)
- Third Normal Form (3NF)
- Second Normal Form (2NF) (correct)
What is the potential consequence of denormalization in database design?
What is the potential consequence of denormalization in database design?
According to Dr. Hosam Selim, what is the highest normal form needed for most purposes in business database design?
According to Dr. Hosam Selim, what is the highest normal form needed for most purposes in business database design?
What is the main trade-off for increased performance through denormalization in database design?
What is the main trade-off for increased performance through denormalization in database design?
Which normalization form requires eliminating repeating groups?
Which normalization form requires eliminating repeating groups?
What is the purpose of ensuring that no data item is unnecessarily stored in more than one table?
What is the purpose of ensuring that no data item is unnecessarily stored in more than one table?
Which attribute dependency concept ensures that all non-prime attributes in a table are dependent on the primary key?
Which attribute dependency concept ensures that all non-prime attributes in a table are dependent on the primary key?
What is the purpose of normalizing the table structure to reduce data redundancies?
What is the purpose of normalizing the table structure to reduce data redundancies?
In the context of database normalization, what does 'eliminate the repeating groups' refer to?
In the context of database normalization, what does 'eliminate the repeating groups' refer to?
Which normal form ensures that all non-prime attributes are fully functionally dependent on the primary key?
Which normal form ensures that all non-prime attributes are fully functionally dependent on the primary key?
What does the relational model view as part of a table or a collection of tables?
What does the relational model view as part of a table or a collection of tables?
What is the reason for ensuring that no data item is unnecessarily stored in more than one table?
What is the reason for ensuring that no data item is unnecessarily stored in more than one table?
'Each row defines a single entity' is a key principle in which step of the normalization process?
'Each row defines a single entity' is a key principle in which step of the normalization process?
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