What is a common consequence of not normalizing a database?

Practice Questions

Q1
What is a common consequence of not normalizing a database?
  1. Increased data integrity
  2. Data redundancy
  3. Improved performance
  4. Simplified queries

Questions & Step-by-Step Solutions

What is a common consequence of not normalizing a database?
Correct Answer: Data redundancy and inconsistencies
  • Step 1: Understand what normalization means. It is the process of organizing data in a database to reduce redundancy.
  • Step 2: Recognize what data redundancy is. It means having the same piece of data stored in multiple places.
  • Step 3: Realize that if a database is not normalized, the same data might be entered in different tables or rows.
  • Step 4: Know that this can lead to inconsistencies. For example, if you change the data in one place but forget to change it in another, the information becomes incorrect.
  • Step 5: Understand that anomalies can occur, such as difficulties in updating, deleting, or inserting data because of the redundancy.
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