StoredProcedureEFCore 0.3.7

There is a newer version of this package available.
See the version list below for details.
Install-Package StoredProcedureEFCore -Version 0.3.7
dotnet add package StoredProcedureEFCore --version 0.3.7
<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
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#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
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

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:

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Version Downloads Last updated
1.0.5 48,444 11/15/2020
1.0.4 47,086 6/16/2020
1.0.3 305 6/15/2020
1.0.2 9,062 4/10/2020
1.0.1 10,743 2/13/2020
1.0.0 2,865 1/14/2020
0.3.15 9,306 10/30/2019
0.3.14 1,037 10/22/2019
0.3.13 438 10/17/2019
0.3.12 614 8/9/2019
0.3.11 12,640 6/1/2019
0.3.10 15,912 11/15/2018
0.3.9 7,446 5/4/2018
0.3.8 1,100 4/21/2018
0.3.7 984 4/3/2018
0.3.6 978 3/16/2018
0.3.5 754 3/16/2018
0.3.4 999 3/2/2018
0.3.3 1,039 2/1/2018
0.3.2 855 1/19/2018
0.3.1 832 1/8/2018
0.3.0 816 1/8/2018
0.2.0 909 12/29/2017
0.1.1 872 12/28/2017
0.1.0 754 12/26/2017