EntityFramework 学习 一 Stored Procedure CREATE PROCEDURE [dbo].[GetCoursesByStudentId]-- Add the parametersforthe stored procedure here @StudentIdint=nullAS BEGIN-- SET NOCOUNT ON added to prevent extra result setsfrom--interfering with SELECT statements. SET NOCOUNT ON;-- Insert statementsforpro...
GO CREATE PROCEDURE [dbo].[GetPersonsByState] @State varchar(255) AS BEGIN SELECT p.* FROM Persons p INNER JOIN Addresses a on p.Id = a.PersonId WHERE a.State = @State END";//第二个存储过程的创建代码var proc2 = @" IF OBJECT_ID('AddLookUpItem', 'P') IS NOT NULL DROP PROC ...
Note that we leverage an existing EF method, EntityCollection.Attach, to associate the returned category with the related products.public Category GetCategoryAndRelatedProducts(int categoryID){DbCommand command = this.CreateStoreCommand("GetCategoryAndProducts", CommandType.StoredProcedure, new SqlParameter...
RuntimeStoredProcedure.cs 初始化RuntimeStoredProcedure類別的新執行個體。 C# publicRuntimeStoredProcedure(Microsoft.EntityFrameworkCore.Metadata.RuntimeEntityType entityType,stringname,string? schema,boolrowsAffectedReturned); 參數 entityType RuntimeEntityType ...
The basic elements of schema syntax required to map a stored procedure to an Entity Data Model (EDM) implementation are described in How to: Define a Model with a Stored Procedure (Entity Framework).Two kinds of stored procedure mapping are supported by the EDM. For more information about ...
Microsoft.EntityFrameworkCore.Relational v8.0.0 取得資料庫中預存程式的名稱。 C# stringMicrosoft.EntityFrameworkCore.Metadata.IStoredProcedure.Name { [System.Diagnostics.DebuggerStepThrough]get; } 屬性值 String 實作 Name 屬性 DebuggerStepThroughAttribute ...
您将@StartDate和@EndDate列定义为DateTime，但尝试传递它们的字符串值。
在entity framework 中 function import 若選 傳回型別是 實體 才會 產生code後來找到一篇文張有說到 用以下方法可以取得 值http://blogs.microsoft.co.il/blogs/gilf/archive/2009/04/03/supporting-stored-procedures-that-return-primitive-types-in-entity-framework.aspx但以上也是要在stored...
using Microsoft.EntityFrameworkCore; using System.Data; using System.Data.Common; using System.Data.SqlClient; namespace xxxxx.EntityFrameworkCore.Repositories { //说明: //1. xxxxxRepositoryBase 为ABP的默认仓储,根据情况而调整 //2. xxxxxDbContext 为ABP的默认DbContext,根据情况而调整 ...
EF核中的EF6映射和MapToStoredProcedures等价 EF核中的EF6映射(EF6 Mapping)是指使用Entity Framework 6(EF6)进行对象关系映射(ORM)时,将数据库中的表结构映射到实体类的属性上的过程。EF6映射是通过配置文件或使用特性注解的方式来定义实体类与数据库表之间的映射关系。 EF6映射的分类包括: 数据注解(Data An...