You're tasked with redesigning a legacy database system that suffers from numerous anomalies. Explain how you would approach the normalization process to address these issues and improve overall database performance.
- Break down the database into fewer tables to simplify it
- Combine multiple tables into one for faster access
- Identify and eliminate redundant data by dividing tables and using foreign keys
- Use non-normalized data to improve performance
In a legacy system, normalization involves identifying redundant data and dividing tables to eliminate anomalies such as update, insertion, and deletion anomalies. This is achieved by breaking down data into fewer tables, using foreign keys to establish relationships, and ensuring data integrity. Combining tables or using non-normalized data would not address the underlying issues of redundancy and anomalies.
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