DB Context

Most important class in Entity Framework. It's the bridge between your domain or entity classes and the database. Its primary responsibility is to interact with the database.

It will:

• Produce SQL Queries to fetch data
• Performs persisting functions such as:
  • Inserting
  • Updating
  • Deleting
• Enables Linq & Lambda Expressions to easily
  • Filter
  • Sort
• Keeps track of changes in the data
• It also acts as a first level caching layer by keeping objects in memory for the life of the DB Context.

In the next video we'll begin putting the DB Context together