StoredProcedureEFCore 1.0.5

Install-Package StoredProcedureEFCore -Version 1.0.5
dotnet add package StoredProcedureEFCore --version 1.0.5
<PackageReference Include="StoredProcedureEFCore" Version="1.0.5" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add StoredProcedureEFCore --version 1.0.5
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: StoredProcedureEFCore, 1.0.5"
#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=1.0.5

// Install StoredProcedureEFCore as a Cake Tool
#tool nuget:?package=StoredProcedureEFCore&version=1.0.5
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


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)


IStoredProcBuilder AddParam<T>(string name, T val); // Input parameter
IStoredProcBuilder AddParam<T>(string name, T val, out IOutParam<T> outParam, int size, byte precision, byte scale); // Input/Ouput parameter
IStoredProcBuilder AddParam<T>(string name, out IOutParam<T> outParam, int size, byte precision, byte scale); // Ouput parameter
IStoredProcBuilder ReturnValue<T>(out IOutParam<T> retParam, int size, byte precision, byte scale);
IStoredProcBuilder SetTimeout(int timeout);
Task               ExecAsync(Func<DbDataReader, Task> action, CancellationToken cancellationToken);
Task<int>          ExecNonQueryAsync(CancellationToken cancellationToken);
Task               ExecScalarAsync<T>(Action<T> action, CancellationToken cancellationToken);


Task<List<T>>                        ToListAsync<T>();
Task<Dictionary<TKey, TValue>>       ToDictionaryAsync<TKey, TValue>(Func<TValue, TKey> keyProjection);
Task<Dictionary<TKey, List<TValue>>> ToLookupAsync<TKey, TValue>(Func<TValue, TKey> keyProjection);
Task<HashSet<T>>                     ToSetAsync<T>();
Task<List<T>>                        ColumnAsync<T>();
Task<List<T>>                        ColumnAsync<T>(string columnName);
Task<T>                              FirstAsync<T>();
Task<T>                              FirstOrDefaultAsync<T>();
Task<T>                              SingleAsync<T>();
Task<T>                              SingleOrDefaultAsync<T>();

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


Install-Package StoredProcedureEFCore

Why ?

Stored procedure execution was previously not supported in Entity Framework Core:

It is now supported since EF Core 2.1 but this library 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. Output parameters and return values seem difficult to use with EF Core
  • Mapping is 30% faster

NuGet packages (4)

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Version Downloads Last updated
1.0.5 52,195 11/15/2020
1.0.4 47,510 6/16/2020
1.0.3 305 6/15/2020
1.0.2 9,108 4/10/2020
1.0.1 10,833 2/13/2020
1.0.0 2,894 1/14/2020
0.3.15 9,391 10/30/2019
0.3.14 1,046 10/22/2019
0.3.13 438 10/17/2019
0.3.12 621 8/9/2019
0.3.11 12,686 6/1/2019
0.3.10 16,014 11/15/2018
0.3.9 7,470 5/4/2018
0.3.8 1,119 4/21/2018
0.3.7 998 4/3/2018
0.3.6 997 3/16/2018
0.3.5 778 3/16/2018
0.3.4 1,024 3/2/2018
0.3.3 1,069 2/1/2018
0.3.2 885 1/19/2018
0.3.1 855 1/8/2018
0.3.0 846 1/8/2018
0.2.0 930 12/29/2017
0.1.1 892 12/28/2017
0.1.0 775 12/26/2017