What task is intended to be solved using a side table in a database?

A side table in a database is used to store additional information that does not fit or is not practical to store in the main table.

This helps to:

• Separate data for query and storage optimization
• Avoid redundancy and duplication
• Organize one-to-many or many-to-many relationships through separate tables

For example, if you have a users table and their addresses can be multiple, addresses can be stored in a side table linked to the main table via a foreign key.