In 2NF, which form of dependency is removed
Correct answer: B. Partial
- A. Functional
- B. Partial
- C. Associative
- D. Transitive
Explanation
In a relational database, a partial dependency exists when a non-prime attribute (an attribute that is not part of the primary key) is dependent on only a part of the candidate key (a minimal set of attributes that uniquely identifies a row in a table). This can lead to data redundancy and inconsistencies. Second Normal Form (2NF) specifically addresses this issue by eliminating partial dependencies
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Databases
Databases cover tables, records, fields, keys and relationships, together with database management systems and relational database design. The subject includes primary and foreign keys, normalization, SQL commands such as SELECT, INSERT, UPDATE and DELETE, queries, forms and reports, while distinguishing a database from a spreadsheet used for simple tabular data.
Practise Databases
210 free Databases MCQs from Computer Science and IT, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Computer Science and IT questions like this
Computer Science and IT is on 85 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Databases questions
A relation is in 2NF if it is in 1NF and all its non-key attributes are
Two or many attributes having different names but same meaning are called
Which of the following is NOT a type of anomaly in database?
In 3NF, which form of dependency is removed
Can you write the same information in two different ways
How many types of data integrity are there