A top-to-bottom relationship among the items in a database is established by a

Options
- Hierarchical schema
- Network schema
- Relational schema
- All of the above

CORRECT ANSWER : Hierarchical schema

Discussion Board
Explanation.

Answer : Hierarchical Schema.

In hierarchical database model, the data is organized into a tree-like structure and the data is stored as records which are connected to one another through links.
A record is a collection of fields, with each field containing only one value. The entity type of a record defines which fields the record contains.

Jayesh Sonar 03-1-2015 11:23 PM

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