On one hand, change management is complex to handle in relational databases. Users have to define the database schema before data injection. In addition, any change in database schema or tables should be studied carefully. Otherwise, such changes can cause service failure, reduce performance or may require maintenance and additional investment to adapt application modules.
On the other hand, NoSQL Databases enable an easy change management. In fact, there is no need to specify in advance rigid database schema. This provides flexibility to store data without a predefined schema. Furthermore, it is possible to change any time the data model without affecting the system or application’s performance. Thus users have the possibility to choose the appropriate data model and database depending on their use case.
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