I wanted to connect LinqPad with EF Core Driver v2.2. my project is .NetStandard and I have DB connection string in OnConfiguring override method in AnalyticsContext class which inherits from DbContext, I have relations with table using fluent api and I have applied seed data to insert to Database.
I am having this error message, you can see
What could be the solution for this?
Related
I have a .net core project where i am using entity framework db first connecting to sql server which is working fine, now i have similar set of tables in oracle can i just run the project by changing connection string and provider to oracle? Or any major rework is needed to make this work?
You need to regenerate the DbContext mappings using reverse engineering
Is there any chance to use ASP.NET Identity with Entity Framework while connecting to an Oracle database?
The challenge seems to be some version conflicts:
The Oracle Data Provider for .NET only targets Entity Framework 5 but not Entity Framework 6.
The NuGet package Microsoft.AspNet.Identity.EntityFramework targets EF6, not EF5.
It's not the code first feature that troubles me. It's getting the connection up and running and reading my user identity data from the Oracle database that bugs me.
Any pointers are much appreciated.
The solution is, of course, in implementing an UserStore class for the IUserStore (and IUserPasswordStore and IUserClaimStore and whatever one needs) interfaces.
Therein, it's just plain EF5 code that queries and updates the ASP.NET Identity tables.
Using this, the UserManager works just fine for accessing all identity data.
I was having trouble finding a path/resource to the query if oracle is supported by Entity framework.
If it does ... which of the following Workflows does it support?
Model First
Database First
Code first(new database)
Code first (Existing database)
Kindly also mention the resource where I can learn Entity framework that has support for oracle.
Is it possible to update the edmx model automatically or make the entity model notify (throw error) if the underlying tables or stored procedures have been changed by db admin.I have created entities for an existing database. Im using entity framework 4.0 with mvc 3.0.
Thanks!
Is it possible to use the DataContext class to connect to an Oracle DB?
I am reading some examples on MSDN
I need an example where the context is used to connect to Oracle.
DataContexts are specific to LINQ-to-SQL and thus SQL Server. If you want an ORM for Oracle, you need to look at alternatives like the Microsoft Entity Framework or NHibernate.