In an e-commerce website, data normalization is used to separate customer data, product data, and order data into distinct tables, thereby preventing duplication and ensuring data integrity.

ERP systems utilize data normalization to maintain a unified database where employee, inventory, and sales data are separated yet related, allowing accurate reporting and analytics.

In healthcare, data normalization ensures patient records, treatment information, and billing details are stored in a structured manner, promoting better data interoperability and compliance.

Financial databases use normalization to separate transaction records, account information, and reporting metrics to enhance data accuracy and integrity.