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How Can I Execute Raw SQL Queries with Ranking in Entity Framework Core without Using DbSet?

Linda Hamilton
Release: 2025-01-27 01:11:08
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How Can I Execute Raw SQL Queries with Ranking in Entity Framework Core without Using DbSet?

Entity Framework Core: Executing Raw SQL Queries with Ranking (Without DbSet)

Entity Framework Core's dbData.Database.SqlQuery<somemodel> method has been deprecated, creating difficulties when executing raw SQL queries that need both data mapping and ranking. While dbData.Product.FromSql("SQL SCRIPT") is an option, it lacks rank mapping capabilities.

EF Core Versions and Solutions:

EF Core 8 and later: The SqlQuery method now returns scalar values and supports arbitrary types, rendering older approaches ineffective.

EF Core 3.0 and later: Keyless entity types (formerly known as query types) provide a solution. Annotate your class with [Keyless] and use FromSqlRaw or FromSql to execute your query and map the results.

EF Core 2.1 and later: Query types offer a viable approach. Within your DbContext, define a DbQuery<T> property (where T represents the type for your SQL query's column values). Then, utilize the FromSql method as you would with DbSet<T>.

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