Informatics Practices
Which of the following data models is suitable for one-to-many relationship?
- Relational
- Network
- Hierarchical
- None of these
Relational Database
2 Likes
Answer
Hierarchical
Reason — Hierarchical model depicts one-to-many (1:M) relationships between a parent and child segment. Each parent segment can have many child segments but it does not hold true the other way round-each child segment has only one parent segment and is connected through links.
Answered By
3 Likes
Related Questions
A/An …………… is a non-key attribute whose value is derived from the primary key of another table.
- Primary Key
- Alternate Key
- Candidate Key
- Foreign Key
Duplication of data is termed as …………… .
- Database Inconsistency
- Data Redundancy
- Data Integrity
- Data Consistency
Which data model uses tables?
- Relational
- Network
- Hierarchical
- None of these
Which level of abstraction describes how the data is actually stored in the database?
- External level
- Conceptual level
- Physical level
- None of these