In which normal form are repeating groups removed in relations?
Correct answer: A. 1NF (First Normal Form)
- A. 1NF (First Normal Form)
- B. 2NF (Second Normal Form)
- C. 3NF (Third Normal Form)
- D. BCNF (Boyce-Codd Normal Form)
Explanation
In First Normal Form (1NF), a relational database table must adhere to the following rules:Atomic Values: Each cell (intersection of a row and column) must contain a single atomic value. This means no lists or multiple values can be stored in a single cell.No Repeating Groups: There should be no repeating groups of columns within a table.Removing repeating groups is the essential characteristic of 1NF. By eliminating these groups, the database becomes more organized and easier to manage. Normalization proceeds through further forms (2NF, 3NF, etc.) to minimize redundancy and improve data integrity.
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