a2zinterviews

1.	What is a data?
	Data is as fact about people, places or an entity. Data is simply the value assigned to a variable.

2.	What are the various data types?
	The various Data types are: Character Number or Boolean

3.	What is a variable?
	The term variable refers to the name of a memory location that can contain only one data at any point of time.

4.	What is a user-defined data type?
	Database system provide a facility by which users can define their own, more sophisticated data types which are known as user-defined data types.