


How Can I Execute Raw SQL Queries Without DbSets in Entity Framework Core?
Jan 27, 2025 am 01:01 AMWorkarounds for Raw SQL Queries without DbSets in Entity Framework Core
Entity Framework Core's removal of dbData.Database.SqlQuery<somemodel>
presents a challenge when executing raw SQL queries that return unmapped entities, particularly for tasks like full-text searches with ranking. Here's how to overcome this limitation:
EF Core 8 and Later:
The simplest solution in EF Core 8 and later versions is to use SqlQuery
directly. It now supports returning arbitrary types, eliminating the need for keyless entities in many cases.
EF Core 3.0 and Above:
The recommended approach for EF Core 3.0 and later is to utilize keyless entity types:
- Define a keyless entity type using the
[Keyless]
attribute or fluent API's.HasNoKey()
. - Execute your SQL query using
FromSqlRaw
orFromSqlAsync
:
var result = context.SomeModels.FromSqlRaw("SQL SCRIPT").ToList(); var result = await context.SomeModels.FromSql("SQL_SCRIPT").ToListAsync();
EF Core 2.1 and Above:
For older versions (EF Core 2.1 and up), consider using query types:
- Declare a
DbQuery<T>
property in yourDbContext
, whereT
is a custom class matching your query's output structure. - Use
FromSql
on thisDbQuery
property:
public DbQuery<SomeModel> SomeModels { get; set; } var result = context.SomeModels.FromSql("SQL_SCRIPT").ToList(); var result = await context.SomeModels.FromSql("SQL_SCRIPT").ToListAsync();
These methods offer flexibility in retrieving data from raw SQL queries, accommodating scenarios involving ranking and non-mapped entities within Entity Framework Core.
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