Denormalization is the process of increasing redundancy in a database to improve read performance by reducing the number of joins needed.
Questions & Step-by-step Solutions
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Q
Q: What is denormalization?
Solution: Denormalization is the process of increasing redundancy in a database to improve read performance by reducing the number of joins needed.
Steps: 6
Step 1: Understand what a database is. A database is a collection of data that is organized in a way that makes it easy to access and manage.
Step 2: Learn about normalization. Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
Step 3: Know what redundancy means. Redundancy is when the same piece of data is stored in multiple places.
Step 4: Understand why denormalization is used. Denormalization is used to make reading data faster by reducing the number of times the database has to combine data from different tables (this is called a join).
Step 5: Realize that denormalization adds some redundancy back into the database. This means that some data may be stored in more than one place to make it quicker to access.
Step 6: Conclude that denormalization is a trade-off. It can make reading data faster, but it can also make writing data more complicated because you have to update the same data in multiple places.
