mysql entity framework core

LINQ to SQL queries can also improve performance. The ADO. Net team mentioned that in their internal tests, some modifications to the query parameter evaluation method have resulted in a 600% performance improvement. Although. net delivery and EF release are independent of each other. They still share some core libraries, including system. data. entity. DLL, system. data.

Entity Framework Tip 4-how to use notracking to query objects in the detached state? Sometimes our entities only need to be displayed without updating, so to improve performance, we do not need to beContext tracing. In this case, you can use the notracking query to obtain the object, so that the object state will be detached. In ef3.5 SP1 and EF 4, we can perform notracking queries as follows:Using (VAR co

ASP. NET Core 1.0 uses MySQL for EF Core 1.0 (. NET Core 1.0) and coremysql After several days of project design practices, I almost gave up using MySQL to use MSSQL, but I found it abroad after several twists and turns.. NET Core

entity types and their attributesCreate a project using Xcode, create a new file in the project, select Datamodel in the core data category, and the following figure: At this point in the Xcode file navigation area will appear a xcdatamodeld file extension, this file is the data model file, click the Add Entity button to add an

(representing the relationship between orders and customers) an order object has the following attributes (the order owner and the order attributes, and their attribute types are naturally two objects ). /// Describe the customer of the order through the "place order" object. For convenience, you can add a "get customer" method in the order class, which is implemented through the "order" object set. The "Order List" attribute you added to the customer class is also completed by querying the "

Chapter 12 in Pro LINQ Object Relational Mapping with C #2008 Vijay P. MehtaAPress LINQ to SQL (LTS) vs the Entity Framework (EF) Now that you have seen LTS and EF in action, it is time to look at the strengths and weaknesses of each of the tools, along with other ORM options that you have available to you as. NET developer. this chapter examines some of the differences between the two ORM tools, the lesso

Tags: operation of the BLE font table Data Library sub-table attribute ring comparison project developmentLINQ to SQL and Entity Framework Operations One: LINQ to DB framework 1. LINQ to SQL 2. LINQ to ADO Entity Framework LINQ to SQL is a team EF is a team ... LINQ to SQL

Install Entity Framework (EF basics Series 4), entityefEntity Framework 5.0 APIs are distributed in two places: NuGet and. NET Framework, this. NET framework 4.0/4.5 contains the core API of EF, but the EntityFramework obtained th

Entity Framework 6 Recipes 2nd Edition (9-7) Translation-> serialize proxy in the WCF Service, recipeswcf 9-7. serialize the proxy in the WCF Service Problem Returns a dynamic proxy object from a query, and wants to sequence it into a POCO (Plain-Old CLR Objects) object. Implemented based on POCO object. At runtime, EF automatically generates a derived type for each object, which is called a dynamic proxy o

The ASP. NET MVC with Entity Framework and CSS is a relatively new book on ASP. NET MVC, EF, and CSS Technology published in 2016, and I will try to translate this book for future reference. However, as my English proficiency is limited, there is a lack of accuracy or error in translation, so please be enthusiastic to put forward valuable suggestions for amendment. This book is a total of 18 chapters, the f

The Windows Service project referenced another class library project, and the other project used the Entity Framework (introduced through NuGet), but my Windows service couldn't be turned on, so I modified App. config to join EF Configuration information can be turned on, but the business code cannot be entered and errors are found through the log:System.InvalidOperationException:The

= User.class;//user user = (user) S.get (userclass, id); User user = (user) S.load (userclass, id);//load value cannot be empty return user;} Finally{if (s!=null) {s.close ();}}This code will report an exception. Org.hibernate.LazyInitializationException:could not initialize Proxy-no Session.Because the database is not used at this time.If on the top user user = (user) s.load (userclass,id), this line of code is added below:System.out.println (User.getname ()); The exception is not reported at

The company's project in the EF, the recent time to study the next, collated a more common EF framework for everyone to share.EF This east, use good words, really convenient development, use bad words, out of a problem half a day can not find out what is the reason.Let's introduce the simple use of EF. Mainly divided into the following 5 itemsEf. Core: Data EntityEf. data:c# entities directly mapped to data

future, which is not a waste of time. But to improve the development of the project in the future, with the continuous accumulation, we will find a lot of repetitive features do not need us to repeat the writing, and the time saved we can do what we want to do, so we have to do a lazy programmer thinking.In addition to the Declaration,Running GuestArticles are original, reproduced please link to the form of the address of this articleIQueryable and Iqueryprovider in the C #