C# Database libraries are a combination of data access and data manipulation. These libraries help in creating database applications using C#. The C# database library is a powerful tool for manipulating and working with databases. It provides a set of classes that can be used to create, retrieve, insert, update and delete data in a database. The database library also provides functions that are used to manage connections to the database and manipulate the data stored in the database. The C# database library is not just limited to working with SQL databases. The library also supports XML and text-based (non-relational) databases such as MongoDB, Couchbase, Redis etc.
The efcore and ravendb libraries are great for connecting to SQL databases, but they're not the only options. Chinook is a C# library that has been developed by Microsoft to make it easy to interact with data in SQL Server. Its API closely resembles the one that your database server will return. It's also possible to create a database using the Microsoft Data Access components, which includes an API similar to that of Chinook or efcore. Some of the most popular C# Database libraries among developers are