Computer Science for IGCSE & O level - Databases (Section 2 - No. 49)
What is the purpose of data validation in a database?
To display data in a user-friendly format.
To ensure the data is stored efficiently.
To maintain the data integrity by ensuring accurate and consistent data.
To speed up database queries.
Giải thích
Data validation is used to ensure the integrity of the database by confirming that the data satisfies specific constraints before it is stored.