Feb 14, 2023 · Here is an example of how to use the SqlQuery method to return a scalar value. In this example, the query returns a single integer value, which is the count of rows in the Books table. You can also compose LINQ operators over your SQL query.

Sep 13, 2019 · Entity Framework provides support for executing raw SQL queries against the database. This feature is available in Entity Framework Core as well. Such raw SQL queries can return entity types or query types (from EF Core 2.1). This article presents a discussion on how we can work with raw SQL queries in Entity Framework Core.

First you defined a new property of type DbQuery<T> where T is the type of the class that will carry the column values of your SQL query. So in your DbContext you'll have this: Secondly use FromSql method like you do with DbSet<T>:

Mar 18, 2022 · We need to create a virtual entity model for our database, that will contain our needed query result, at the same time we need a pseudo DbSet<this virtual model> to use ef core FromSqlRaw method that returns data instead of ExecuteSqlRaw that just returns numbers of rows affected by query.

What you need in this scenario is the ExecuteSqlCommand method with bound output parameter: .Set<TEntity>() is for entities backed by the context. You can try a workaround. cmd.CommandText = "select dbo.FunctionReturnVarchar(@id)"; . cmd.Parameters.Add(new SqlParameter("@id", SqlDbType.VarChar) { Value = id });

Feb 14, 2023 · Here's an example of how to use the FromSql method in Entity Framework Core: ... In the example, LibraryContext is your database context class, Books is the entity set for the Books table, and the FromSql method is used to execute …

Mar 11, 2021 · Entity Framework Core uses Language-Integrated Query (LINQ) to query data from the database. LINQ allows you to use C# (or your .NET language of choice) to write strongly typed queries. It uses your derived context and entity classes to reference database objects. EF Core passes a representation of the LINQ query to the database provider.

In EF Core, you can retrieve multiple objects from a database using LINQ (Language Integrated Query). You can use the Where method to filter the data based on a condition, and the ToList method to retrieve the data and return it as a list of objects.

Querying in Entity Framework Core remains the same as in EF 6.x, with more optimized SQL queries and the ability to include C#/VB.NET functions into LINQ-to-Entities queries. Visit the LINQ-to-Entities chapter to learn more about the basics of querying in Entity Framework.

Feb 7, 2025 · Raw SQL Queries including the Parameterized Queries can be easily executed using the .FromSqlRaw () method in Entity Framework Core. The result returned by .FromSqlRaw () method is an entity object.