Which of the following statements accurately describes Third Normal Form (3NF) in database normalization?
Third Normal Form (3NF) is a level of database normalization that builds on the requirements of First Normal Form (1NF) and Second Normal Form (2NF). A table is considered to be in 3NF if it satisfies the following conditions: • It must be in 2NF: This means that the table must already be in First Normal Form (1NF) and have no partial dependencies, where non-key attributes depend on a portion of a composite primary key. • No Transitive Dependencies: All non-key attributes must be directly dependent on the primary key, not on other non-key attributes. This eliminates transitive dependencies, where a non-key attribute depends on another non-key attribute rather than on the primary key directly. By ensuring that there are no transitive dependencies, 3NF reduces redundancy and improves data integrity by ensuring that data is only stored in one place. This helps prevent anomalies and inconsistencies when updating the database.
Select the appropriate answer.
Choose the word with correct spelling.
The purpose (A) of genome sequencing (B) is to understand the role of certain mutations (C) in increasing the virus’s infecsivity (D) .
...In each group, one word is correctly spelt. Find the correct word.
When their eyes were set on a thing of beauty, they had to be possessed .
...Most of these hotels offer acommodation in highly comfortable rooms with chic decor and modern furniture and provide breathtaking panoramic views.
The building was so old that its walls were cracked bad.
1)embellish
2)frugol
3)enormos
4)gregayrious
Pakistan has issued over 3,800 visas to Indian pillgrims for participating in the 549th birth anniversary of Guru Nanak in Nankana Sahib near Lahore fro...
Select the word with the correct spelling.
