DATABASE FUNDAMENTALS
WHAT IS DATABASE MANAGEMENT
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Object
|
|
|
Attributes
|
|
|
Data
|
|
|
Model
|
Detailed explanation-1: -A data structure diagram (DSD) is a diagram and data model used to describe conceptual data models by providing graphical notations which document entities and their relationships, and the constraints that bind them.
Detailed explanation-2: -Entity-relationship (ER) data models use formal diagrams to represent the relationships between entities in a database.
Detailed explanation-3: -Data Model gives us an idea that how the final system will look like after its complete implementation. It defines the data elements and the relationships between the data elements. Data Models are used to show how data is stored, connected, accessed and updated in the database management system.
Detailed explanation-4: -The relational data model describes the world as “a collection of inter-related relations (or tables).”