Data Base

Information is

• collection of processed data
• collection of unprocessed data

What is a database?

• grid made up of rows and columns used to store information.

• collection of information that is stored on a computer.

• sheet that has controls that are used to view and enter information

• group of information about a person, thing, or event.

What is a record?

• grid made up of rows and columns used to store information.

• collection of information that is stored on a computer.

• sheet that has controls that are used to view and enter information

• group of information about a person, thing, or event.

What is Database Management System?

• A software system that enables users to access to the database.
• A software system that enables users to create  access to the database.
• A software system that enables users to define, create, maintain and control access to the database.
•   A software system that enables users to maintain and control access to the database.

Which of the following is NOT Advantages of DBMS

• Increased data consistency 
• Reduced data redundancy
• Improved data security 
• Increase data isolation

The three types of data models are ____________,____________ and ________________

(a)   means duplication of data

____________ are known as rows and _______ are known as columns

(a)  

______________ is named collection of data items which represents a complete unit of information.

• Field

• Record

• Table

• Data base

_____________ is a key uniquely identifies a record in a table.

• Primary key

• candidate key

• Alternate key