Understanding request units and how they affect billing

In Chapter 3, Writing and Running Queries on NoSQL Document Databases, we learned how to execute SQL queries against a document collection with the SQL API by using different tools. We also learned how to check the request units consumed by each query. In Chapter 4, Building an Application with C#, Cosmos DB, a NoSQL Document Database, and the SQL API, we performed operations and composed queries in strings and we executed them against a document collection with the Cosmos DB .NET Core SDK. In Chapter 5, Working with POCOs, LINQ, and a NoSQL Document Database, we performed operations with POCOs and we composed queries with LINQ and POCOs. However, in these last two chapters, we didn't check request unit consumption.