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Questions and Answers
What is the primary requirement for a table to be in 1NF?
What is the primary requirement for a table to be in 1NF?
- Each row must have a unique combination of values. (correct)
- All attributes must be dependent on the primary key.
- It must not have any partial dependencies.
- It must have a primary key.
What is the condition for a table to be in 2NF?
What is the condition for a table to be in 2NF?
- It is in 1NF and has no transitive dependencies.
- It has a primary key and no duplicate rows.
- It has a primary key and all attributes are dependent on it.
- It is in 1NF and has no partial dependencies. (correct)
What is the term for an attribute whose value determines other values within a row?
What is the term for an attribute whose value determines other values within a row?
- Primary key
- Candidate key
- Determinant (correct)
- Partial dependency
Why is a determinant used as a primary key in a new table?
Why is a determinant used as a primary key in a new table?
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What is the characteristic of a candidate key?
What is the characteristic of a candidate key?
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What is the purpose of reassigning corresponding dependent attributes?
What is the purpose of reassigning corresponding dependent attributes?
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What is the condition for a table to be in 3NF?
What is the condition for a table to be in 3NF?
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What is the purpose of converting a table to 3NF?
What is the purpose of converting a table to 3NF?
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What is the characteristic of the Boyce-Codd Normal Form?
What is the characteristic of the Boyce-Codd Normal Form?
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What is the primary reason for using higher-level normal forms?
What is the primary reason for using higher-level normal forms?
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