First off, we will cover SQL-related issues. So, if you're not using a relational database, you can skip this bit; for example, if you use a NoSQL store or a document database instead. Relational databases are a very mature technology and are flexible in their uses. However, it is essential to have a basic knowledge of the SQL syntax and how databases work in order to use them effectively. Even Azure Cosmos DB (previously known as DocumentDB) has an optional SQL API.
It can be tempting when using an O/RM tool, such as Entity Framework (EF), to ignore SQL and stay in the C# world; however, a competent developer should be able to write a high-performance SQL query. Ignoring the realities of how a database engine works will often lead to ...
