If a table is in Third Normal Form (3NF), the following must be true:

1. It is in 1NF and 2NF: This is because for a table to be in 3NF, it must first satisfy the rules of 1NF and 2NF. 1NF requires that the table has a primary key and that its attributes are atomic, meaning each cell contains unique and indivisible data. 2NF requires that it has no partial dependencies, meaning all non-key attributes must be fully functionally dependent on the primary key.

2. It has no transitive dependencies: This is the additional rule for 3NF. A transitive dependency occurs when a non-key attribute is functionally dependent on another non-key attribute. In 3NF, all non-key attributes must be directly dependent on the primary key.

3. All attributes are functionally dependent on the primary key: This is a requirement of both 2NF and 3NF. It means that the value of any attribute in a row can be determined solely by the value of the primary key.

So, the correct answer is "All the Available Options".

Question

If a table is in Third Normal Form (3NF), the following must be true:

1. It is in 1NF and 2NF: This is because for a table to be in 3NF, it must first satisfy the rules of 1NF and 2NF. 1NF requires that the table has a primary key and that its attributes are atomic, meaning each cell contains unique and indivisible data. 2NF requires that it has no partial dependencies, meaning all non-key attributes must be fully functionally dependent on the primary key.

2. It has no transitive dependencies: This is the additional rule for 3NF. A transitive dependency occurs when a non-key attribute is functionally dependent on another non-key attribute. In 3NF, all non-key attributes must be directly dependent on the primary key.

3. All attributes are functionally dependent on the primary key: This is a requirement of both 2NF and 3NF. It means that the value of any attribute in a row can be determined solely by the value of the primary key.

So, the correct answer is "All the Available Options".

Knowee AI · Accepted Answer

If a table is in Third Normal Form (3NF), the following must be true:

1. It is in 1NF and 2NF: This is because for a table to be in 3NF, it must first satisfy the rules of 1NF and 2NF. 1NF requires that the table has a primary key and that its attributes are atomic, meaning each cell contains unique and indivisible data. 2NF requires that it has no partial dependencies, meaning all non-key attributes must be fully functionally dependent on the primary key.

2. It has no transitive dependencies: This is the additional rule for 3NF. A transitive dependency occurs when a non-key attribute is functionally dependent on another non-key attribute. In 3NF, all non-key attributes must be directly dependent on the primary key.

3. All attributes are functionally dependent on the primary key: This is a requirement of both 2NF and 3NF. It means that the value of any attribute in a row can be determined solely by the value of the primary key.

So, the correct answer is "All the Available Options".

If a table is in Third Normal Form (3NF), which of the following must be true?Group of answer choicesIt is in 1NF and 2NFAll the Available OptionsIt has no transitive dependenciesAll attributes are functionally dependent on the primary key

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