Data Redundancy
Explore how to detect redundant data in SQL tables and understand the challenges it creates, including storage overhead and data inconsistencies. Learn to use foreign keys to establish relationships between tables, minimizing redundancy and ensuring data integrity.
We'll cover the following...
We'll cover the following...
Identifying redundant data in the SalesData table
The layout of our updated SalesData table is as follows:
Let’s take another look at the stored data: ...