Once you have a model, you can use migrations to create a database. The optionsBuilder has UseOracle method it expects a connection string as a parameter. In EF Core, the DbContext has a virtual method called onConfiguring which will get called internally by EF Core, and it will also pass in an optionsBuilder instance, and you can use that optionsBuilder to configure options for the DbContext. OptionsBuilder.UseOracle( Id=Scott Password=tiger Data Source=Ora ') Install entity framework latest version via nuget package manager and start following step 4 again.Īfter successfully choosing the table and setting up the connectivity, database schema diagram will show up.Protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) If entity framework 6 or above 6 is not installed this error may show up. This will make model classes for the tables. If the connection is successful then you get to choose the table names from the wizard that you want to use. Now give your database context class a name from the following wizardI. Select Oracle Database and ODP.NET, managed driver. You can change data source from this window. Right click on the project name from the solution explorer, select Data from Add new item list on the left side. Step 4: Connect to database (Database First) NET framework from the top bar.īy default Entity framework 6.1.1 was installed which is required, if not you can install from nuget package manager by choosing options from the top bar: Tools->Nuget Package Manager->Manage NuGet Packages for SolutionĪnd also install this important package same way: Official Oracle ODP.NET, Managed Entity Framework Driver.

NET framework 4.5.2 select Visual C# and select ASP.NET Web Application and choose the. Oracle data source will be added in the data source list. I’ve installed the first one and it does the rest. To set up drivers in visual studio download and install this tools from oracle site. In my case I already have set up, so picture is taken from other source. If oracle database drivers are not set up and doesn’t appear to choose oracle data source from “Change data source” wizard like following picture, start from this step. I’ll try to mention briefly how I solved the oracle connectivity issue in my case. I’ve found this cool tutorial on “EF Database First with ASP.NET MVC 5 and Oracle Database 12c” by David Young which was very helpful. Developer tools: Visual studio 2013, Oracle 10g, Entity Framework 6+(Compatible with.

Entity framework oracle 10g