5 question about database

Jun 11th, 2015
SKTFaker
Category:
Engineering
Price: $20 USD

Question description

·please answer these questions for me 

Question 1


What is a database? What is a database management system (DBMS)? What functions does a DBMS perform?

·  Question 2


What are business rules, what is their source and why are they crucial?

·  Question 3


What is a key?What is aprimary key and foreign key? Discuss their use and importance inthe relational model?


·  Question 4


What is normalization? When is a table in 1NF? When is a table in 2NF? When is a table in 3NF?


·  Question 5


Using the model below, describe the relationship and connection / cardinality between:

a. STORE and ORDER

b. STORE and EMPLOYEE

c. EMPLOYEE and DEPENDENT

d. ORDER and ORDER_LINE

e. PRODUCT and ORDER_LINE


and u can use this Power point slides to find the answers : 

Review.ppt 

Tutor Answer

(Top Tutor) Daniel C.
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School: Duke University
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