mysql entity framework core

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

Today, when I look at the SQL statement generated by the Entity Framework Core with SQL Server Profiler, I suddenly find a detail improvement, and it shook it a bit:exec sp_executesql N'[u]WHERE [u].[ LoginName] = @__loginname_0', N'@__loginname_0 nvarchar (+)',@__ Loginname_0=N'test'The Shock is the U (alias of the table), which is not a random name for EF

Familiarity with the Entity Framework should be not unfamiliar to the film, he is the ADO Entity Data Model Wizard: You can automatically generate a model class for a database table, or create a model file for code first.However, this Model wizard only displays Microsoft's own SQL Server data source by default, and if you want to use a

Tags: tin using creat nbu top ima foreach depend spanThe Entity Framework Core (hereinafter referred to as "EF core") supports multiple databases. In this article, we'll look at how to create a SQLite database using EF Core's code first method Download SQLite, unzip will get three files, put in the C:\sqlite directory

optionsbuilder) { optionsbuilder.usesqlserver (dbconnectionstring); } ... }3) Get database connection string from Appsettings.json file and assign it to dbconnectionstring in Startup.cs file Public void configureservices (iservicecollection services) { // Config Database connection string nuhotrscontext.dbconnectionstring = configuration.getconnectionstring ("Customdbcontext" ); ... }Reference Links:Http

primary key/foreign key cannot be set in the Model Sometimes, the foreign key is not clearly defined in the model of the master-slave relationship; sometimes the primary key of the model is private set; In this case, we cannot set the primary key/foreign key value in hasdata. How can we add the seed data? The answer is to useAnonymous class. I removed the foreign key from the city model (the navigation property is retained, and the master-slave relationship with province still exists ): Then

Tags: style blog http io ar os sp for strongThe error message while trying to create a ADO. NET entity Data Model (Entity Framework 6) for MYSQL Database in Microsof T Visual Studio 2013"Your Project references the latest version of the Entity

MySQL only supports default values and Automatic updates for timestamp that cannot be used for rowversion. Therefore, you can only set row Version in the app in MySQL. Non-existent disadvantages: 1.ASP. NET slow (no options for IIS application initialization and recycle configuration are set) 2.Entity Framework slow (

Label:Original: http://lvasquez.github.io/2014/11/18/EntityFramework-MySql/ For the Entity Framework 6 support We need to has this requirements MySQL connector/net 6.8.x MySQL Server 5.1 or above Entity

This article makes the problem easy to solve complicated. In most cases, set the use affected rows parameter in the MySQL connection string to true. Author note. When using the MySQL database as the provider of the Entity Framework, you may encounter the following problems: The number of unexpected rows affected by th

Label:The new features available in EF6 allow any developer to build a simple db-powered website with very few lines of code. There is many tutorials explaining how to does that with SQL Express available on the web, but those who want (or is force d) To use MySQL would most likely find a quite smaller amount of literature. I wrote this simple guide for those who asked me to summarize all the required steps to build a

"1.0"encoding="Utf-8"?>"EntityFramework"Type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, version=6.0.0.0, culture= Neutral, publickeytoken=b77a5c561934e089"requirepermission="false"/> //go.microsoft.com/fwlink/?linkid=237468 --"v4.0"sku=". netframework,version=v4.5.1"/> "MySql.Data.MySqlClient"/> "MySQL Data Provider"Invariant="MySql.Data.MySqlClient"description=". Net Framewor