Summary
In this chapter, we looked at the main storage options available in Azure and learned when to use them. Then, we compared relational and NoSQL databases. We pointed out that relational databases offer automatic consistency checking and transaction isolation, but NoSQL databases are cheaper and offer better performance, especially when distributed writes form a high percentage of the average workload.
Then, we described Azure's main NoSQL option, Cosmos DB, and explained how to configure it and how to connect with a client.
Finally, we learned how to interact with Cosmos DB with Entity Framework Core and looked at a practical example based on the WWTravelClubDB use case. Here, we learned how to decide between relational and NoSQL databases for all families of data involved in an application. This way, you can choose the kind of data storage that ensures the best compromise between data coherence, speed, and parallel access to data in each of your applications.
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