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Why do databases need redesigning?

Why do databases need redesigning?

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References for this work:

1. Database Processing - Fundamentals, Design, and Implementation by David M. Kroenke's (10th Edition)
2. My Own experience of working on database.

Database design is the process of producing a detailed data model of a database.

Database redesign is the process of changing data model of a database to accommodate changes.

Database redesign is necessary:
- To fix mistakes made during the initial ...

Solution Summary

Solution clearly explains the concept of databases and the possible reasons why they need redesigning and things to be taken care while redesigning databases