EntityFramework之原始查询及性能优化(六) 前言 在EF中我们可以通过Linq来操作实体类,但是有些时候我们必须通过原始sql语句或者存储过程来进行查询数据库,所以我们可以通过EF Code First来实现,但是SQL语句和存储过程无法进行映射,于是我们只能手动通过上下文中的SqlQuery和ExecuteSqlCommand来完成。 SqlQuery sql语句查询实体...
在EF中我们可以通过Linq来操作实体类,但是有些时候我们必须通过原始sql语句或者存储过程来进行查询数据库,所以我们可以通过EF Code First来实现,但是SQL语句和存储过程无法进行映射,于是我们只能手动通过上下文中的SqlQuery和ExecuteSqlCommand来完成。 SqlQuery sql语句查询实体 通过DbSet中的SqlQuery方法来写原始sql语句返回...
And here is my stored procedures CREATEPROCEDUREusp_CreateBook@BookNameVARCHAR(200),@ISBNVARCHAR(200),@BookIdINTOUTPUTASSETNOCOUNTONINSERTINTOBooks(Name, ISBN, AuthorId)VALUES(@BookName,@ISBN,1)SET@BookId=(SELECTSCOPE_IDENTITY())CREATEPROCEDUREusp_CreateAuthor@AuthorNameVARCHAR(200),@EmailVARCHAR(2...
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 ...
Dapper is generally more performant than Entity Framework Core. As a micro-ORM, Dapper has less overhead and can quickly execute database operations. However, the difference in performance may not be significant for small to medium-sized applications or in scenarios where advanced features of EF ...
Microsoft Entity Framework 抽象关系、逻辑数据库模式,然后向 .NET 应用程序呈现一个概念模式。它为 .NET 开发人员提供对象关系映射。LINQ 是一种 .NET 数据查询语言,可以查询多种数据源,其中包括通过 LINQ to Entities 查询的实体。Model-First 使开发人员能够首先创建概念模型。然后由 Visual Studio 创建 Or...
The June CTP supports a new feature called the Auto-Compiled LINQ Queries, which lets every LINQ to Entities query you execute automatically get compiled and placed in the EF query cache. Every time you run the query subsequently, the EF will find it in its query cache and won’t have to...
Starting with Entity Framework 6, Database.ExecuteSqlCommand() will wrap by default the command in a transaction if one was not already present. There are overloads of this method that allow users to override this behavior if wished. Execution of stored procedures included in the model through...
public IList<TEntity> ExecuteStoredProcedureList<TEntity>(string commandText, params object[] parameters) where TEntity : class { if (parameters != null && parameters.Length > 0) { for (int i = 0; i <= parameters.Length - 1; i++) ...
Call Stored Procedure from Controller Using UnitOfWork in Entity Framework 6 Call Stored Procedure using entity framework in Repository Pattern Call view without using controller in MVC Calling a web api method in Browser Calling a controller method from javascript onclick Calling a Controller method on...