using entity framework

publishing environment.Save the following cmd command as a Migrate.bat file:Migrate.exe example.ef.dll/startupconfigurationfile= ". \web.config "PauseExmaple.EF.dll is the DLL that you write the project for Entity Framework migration.Migrate.exe can also not be placed in the bin directory, you can use to create a separate folder (such as tools) to store, but need to put EntityFramework.dll and EntityFramew

10-7. Using stored procedures in the TPH inheritance modelProblemUse a stored procedure to populate an entity with the TPH inheritance modelSolution SolutionsAssume that the model is already shown in Figure 10-7. We have two derived entities: Instructor (faculty) and student (student).This model uses the TPH inheritance method, so there is only one table in the database. The person table has an authenticati

Navigation properties can be used to add data in the Entity Framework.When two tables have a primary foreign key relationship, and the data added to both tables is data that does not exist, you can use the navigation properties to insert the data. For example, the following two tables:When you add new data to two tables, you can add two data to the datasheet by writing it this way. private void Form1_Load (object sender, EventArgs e) {

I often see people asking how to layer a project that uses ADO. NET Entity Framework or LINQ to SQL. EF or linq2sql generates an entity class by themselves. Since entity classes run through the entire project, if the automatically generated entity class is used as part of th

Developed using the Entity Framework 6.x Code-first method in OracleLast year, I wrote a simple learning note for EF, when EF did not support Oracle's Code-first development model, and today has no intention of looking at Oracle's official website, and found that ef6.x has been supported, and has given two tutorials (English version):1.

component in the project (using NuGet) Open the VS menu in turn: Tools + NuGet Package Manager--The NuGet package for managing solutions. Search SQLite, click Install, show Green title indicates that the installation has been successful. 　　　　 2. Demonstration 　　　　　After the installation is complete, follow the steps: "New + = ADO." NET Entity Data model and the EF designer from the database = + New Conne

) { //Builder. Usesqlserver (connection); Builder. Usemysql (connection); } } 5. Modify the database link string In the Web project configuration file Appsettings.json "ConnectionStrings": { //"Default": "Server=localhost; DATABASE=ABPBASICDB; trusted_connection=true; " " Default ":" Server=localhost; port=3306; DATABASE=ABPBASICDB; Uid=root; pwd=****; Convert Zero datetime=true " } 6. Data migration Regenerate migration files When you download the startup templat

When using the Entity Framework Core, automatic migration is introduced by codeWhen developing with the Entity Framework Core (called the EF core bar), if the model is changed, we will manually migrate the command-line tools provided with EF Core before running the program.

Getting Started with Entity Framework 6 Code First using MVC 5 --- use MVC5 to learn EF6 CodeFirst series, mvc5ef6 Preface I am still not used to reading English video materials. I will read this English article and try to sum up this series. The following is the directory: 1. Create an EF entity