SQLtest.online

Question

What is denormalization Relational Database? Choose all correct facts about it.

Answer 1

Denormalization strategically deviates from normalization in an RDBMS to boost read performance by minimizing joins through controlled redundancy (e.g., pre-calculated fields). The trade-off is more storage and complex write consistency.

Answer 2

Denormalization makes the database less strict, relaxing constraints and relationships for easier data insertion and application flexibility.

Answer 3

Denormalization is fixing a poorly designed database by putting everything into one big table, the opposite of complicated normalization.

Answer 4

Denormalization intentionally adds redundancy to a normalized RDBMS schema to improve read performance by reducing joins. This speeds up retrieval but risks data inconsistencies if updates aren't managed carefully.

Answer 5

Denormalization puts all data in the same table for faster reads and updates.

SQLtest.online

Practice

Lessons

Test

Login

Register