INTRODUCTION OF DATABASE SYSTEM

DATABASE:

 A database is a collection of related data.
                       (OR)
 A database is a collection of information that is organized so that it can be easily accessed, managed and updated.

 Examples / Applications of Database Systems:

The following are the various kinds of applications/organizations uses databases for their business processing activities in their day-to-day life. They are:

 1.Banking:

 For customer information, accounts, and loans, and banking transactions.

2. Airlines:

 For reservations and schedule information. Airlines were among the first to use databases in a geographically distributed manner—terminals situated around the world accessed the central database system through phone lines and other data networks.

3.Universities:

 For student information, course registrations, and grades.

4.Credit Card Transactions:

 For purchases on credit cards and generation of monthly statements
.

5. Telecommunication:

 For keeping records of calls made, generating monthly bills, maintaining balances on prepaid calling cards, and storing information about the communication networks
.

6. Finance:

 For storing information about holdings, sales, and purchases of financial instruments such as stocks and bonds
.

7. Sales:

 For customer, product, and purchase information.

 8. Manufacturing:

 For management of supply chain and for tracking production of items in factories, inventories of items in warehouses/stores, and orders for items.

 9. Human resources:

 For information about employees, salaries, payroll taxes and benefits, and for generation of paychecks
.

10. Railway Reservation Systems:

 For reservations and schedule information.

11. Web:

 For access the Back accounts and to get the balance amount.

12. E –Commerce:

 For Buying a book or music CD and browse for things like watches, mobiles from the Internet.