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.
i. A, B, C, D, E, F and G are sitting around a circle and are facing the centre.
ii. G is second to left of C, who is to the immediate left of F....
Which of the following combinations is incorrect?
What is the position of O with respect to Z?
How N is related to T?
Six boys, A, B, C, D, E and F, are sitting around a rectangular table facing towards the centre (not necessarily in the same order). 4 boys are sitting ...
Amit, Gaurav, Hatim, Varun, Yukti and Zaid are sitting in a straight line, all facing the north. Gaurav is fourth to the left of Amit. Yukti is sitting ...
Who among the following sits exactly between F and A?
Five friends K, B, I, H and E are sitting in a straight line all facing in the north direction. K is sitting at one of the extreme ends. Three people ar...
Seven girls A, B, C, D, E, F and G sit in a row facing towards the north (not necessarily in the same order). D sits fifth to the right of A. D does not...
Which of the following colour does B like?