Unit - 1 (2)

The facts describing an entity is known as

• entity

• data

• Attributes

• entity set

Each entity can be described by its characteristics which is known as ______

• Entity

• Data

• Attributes

• Entity set

All the related entities are collected to form ______

• Attributes

• Entities

• Data

• Entity set

Interactions between entity sets are called _______

• Relationship

• Attributes

• Interaction Set

A database is a Collection of_______

• Entity

• Entity set

• Database Collection

Depending on the type of interaction the relationship are classified into

• 1

• 3

• 3

• 4

Union of two tables results in

• Retrieval of all row

• Retrieval of all column

• Both row and column

• Half of the row and column

Intersection of two tables produces a table with row that are in _____ tables

• above

• below

• both

• single

Projection operation returns the ______ of the table

• Vertical Slices

• Horizontal Slices

• Straight slices

• Sleeping Slices

The selection operation returns ______

• Vertical slices

• Horizontal Slices

• Straight Slices

• cross slices