Question

Difference between first normal form and second normal form

Answer 1

First Normal Form :-

First Normal Form , sets the very basic rules for an :-

Organized database

i.e. Eliminate duplicative columns.

Create separate tables for each group of related data.

Identify the row with a unique column i.e.the primary key.

Second Normal Form :-

Second Normal Form further removed the duplicate data :

i.e. Meet the requirements of the first form of

normalization.

Create relationships between new tables

through foreign keys..

hope it help u.........

Answer 2

Answer:

Either side maximum displacement of medium to complete it's one vibration is called the time period of wave.