StoredProcedureEFCore 0.3.7

.NET Standard 1.3
There is a newer version of this package available.
See the version list below for details.
dotnet add package StoredProcedureEFCore --version 0.3.7
NuGet\Install-Package StoredProcedureEFCore -Version 0.3.7
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="StoredProcedureEFCore" Version="0.3.7" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add StoredProcedureEFCore --version 0.3.7
#r "nuget: StoredProcedureEFCore, 0.3.7"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install StoredProcedureEFCore as a Cake Addin
#addin nuget:?package=StoredProcedureEFCore&version=0.3.7

// Install StoredProcedureEFCore as a Cake Tool
#tool nuget:?package=StoredProcedureEFCore&version=0.3.7

Execute stored procedures with Entity Framework Core

DbContext extension with LoadStoredProc method which creates an IStoredProcBuilder to build a stored procedure with a custom mapping strategy using the provided DbDataReader extension.

The method handles :

  • Extra column in result set
  • Extra property in model
  • Null values in result set
  • Underscores in result set column names ("column_name" is mapped to ColumnName property)
  • Int (db) to enumeration (result model) mapping

Entity Framework Core supports stored procedure since 2.1

This library will soon be obsolete, but it has few advantages compared to FromSql:

  • Extra property in the model won't throw an exception. The property keeps its default value
  • The interface is easier to use (I think). Output parameters and return values seem difficult to use with EFCore
  • It is 30% faster


List<Model> rows = null;

   .AddParam("limit", 300L)
   .AddParam("limitOut", out IOutParam<long> limitOut)
   .Exec(r => rows = r.ToList<Model>());

long limitOutValue = limitOut.Value;

   .AddParam("boolean_to_return", true)
   .ReturnValue(out IOutParam<bool> retParam)

bool b = retParam.Value;

   .AddParam("limit", 1L)
   .ExecScalar(out long l);



IStoredProcBuilder             LoadStoredProc(string name)


List<T>                              ToList<T>()
Dictionary<TKey, TValue>             ToDictionary<TKey, TValue>(Func<TValue, TKey> keyProjection)
Dictionary<TKey, List<TValue>>       ToLookup<TKey, TValue>(Func<TValue, TKey> keyProjection)
HashSet<T>                           ToSet<T>()
List<T>                              Column<T>()
List<T>                              Column<T>(string columnName)
T                                    First<T>()
T                                    FirstOrDefault<T>()
T                                    Single<T>()
T                                    SingleOrDefault<T>()

All these methods have a corresponding async method : ToListAsync, ToDictionaryAsync, ...


IStoredProcBuilder                   AddParam<T>(string name, T val)                             // Input parameter
IStoredProcBuilder                   AddParam<T>(string name, T val, out IOutParam<T> outParam)  // Input/Ouput parameter
IStoredProcBuilder                   AddParam<T>(string name, out IOutParam<T> outParam)         // Ouput parameter
IStoredProcBuilder                   ReturnValue<T>(out IOutParam<T> retParam)
void                                 Exec(Action<DbDataReader> action)
void                                 ExecNonQuery()
void                                 ExecScalar<T>(out T val)

Exec, ExecNonQuery, and ExecScalar have a corresponding async method.


Install-Package StoredProcedureEFCore

Why ?

Stored procedure execution was not supported in entity framework core:

Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows
.NET Core netcoreapp1.0 netcoreapp1.1 netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard1.3 netstandard1.4 netstandard1.5 netstandard1.6 netstandard2.0 netstandard2.1
.NET Framework net46 net461 net462 net463 net47 net471 net472 net48 net481
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen30 tizen40 tizen60
Universal Windows Platform uap uap10.0
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
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Learn more about Target Frameworks and .NET Standard.

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Version Downloads Last updated
1.0.5 165,983 11/15/2020
1.0.4 62,554 6/16/2020
1.0.3 423 6/15/2020
1.0.2 9,948 4/10/2020
1.0.1 12,606 2/13/2020
1.0.0 3,493 1/14/2020
0.3.15 13,326 10/30/2019
0.3.14 2,299 10/22/2019
0.3.13 563 10/17/2019
0.3.12 810 8/9/2019
0.3.11 14,672 6/1/2019
0.3.10 18,727 11/15/2018
0.3.9 8,533 5/4/2018
0.3.8 1,341 4/21/2018
0.3.7 1,196 4/3/2018
0.3.6 1,230 3/16/2018
0.3.5 994 3/16/2018
0.3.4 1,237 3/2/2018
0.3.3 1,324 2/1/2018
0.3.2 1,108 1/19/2018
0.3.1 1,081 1/8/2018
0.3.0 1,083 1/8/2018
0.2.0 1,181 12/29/2017
0.1.1 1,169 12/28/2017
0.1.0 1,013 12/26/2017