problem 1:

Illustrate out the concept of Foreign Key. How a foreign key distinct from the Primary Key? Can the Foreign Key accept nulls?

problem 2:

With an essential ex illustrate out (i) Basic Constructs of E-R Modeling (ii) E-R Notations.

problem 3:

Illustrate the first three Normal Forms taking the use of an un-normalized relation and reducing it to 3 NF.

problem 4:

Illustrate out the concept of the Data Mining? How it is related with the data warehouse.

problem 5:

prepare down the SQL queries by using Data Manipulation Language (DML) statements.

problem 6:

Make the payroll database considering table employee.