Introduction
Query your database data with LINQ
()
What you should know
()
How to access the sample code on GitHub
()
Why this course uses LINQPad
()
Install LINQPad
()
1. Get Started
Understand LINQ for Databases
()
Examine the Entity Framework sample
()
Use the EF models in an application
()
Quick look at how to create EF models
()
2. Databases and LINQPad
Connect to included sample database
()
Connect to another database
()
Connect to EF model in a .NET assembly
()
View the database structures in LINQPad
()
3. Explore Queryable Types
Explore the relevant LINQ types
()
Understand the DbContext
()
Queryable types: DbSet and DbQuery
()
DbSet, the basis for EF collection models
()
Save changes in DbSet
()
DbQuery, the basis of LINQ queries for EF models
()
Interfaces: IEnumerable and IQueryable
()
View the Expression Tree
()
View the generated SQL
()
4. Basic Query Syntax
Basic concepts of LINQ
()
Enumerable and Queryable extension methods
()
Use extension methods syntax
()
Use query expression syntax
()
5. Fun with Queries
Projection, get fewer columns
()
Paging with Take and Skip
()
Use Find for faster search by key
()
Use EF navigation properties instead of joins
()
Use the Contains method for
()
Organize query results into groups with GroupBy
()
Flatten child collections with SelectMany
()
Find data within a date range
()