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Editorial Team
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Asked: 2026-06-14T03:09:09+00:00

Using EF Db first, I have two tables: Table1: AppId, AppName, AppGuid [PK] Table2:

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Using EF Db first, I have two tables:

Table1: AppId, AppName, AppGuid [PK]

Table2: AppGuid [FK], Description, Url

Can EF create a one entity from the both?

Meaning:

App:
AppId, AppName, AppGuid, Description, Url

Update

Thanks. I have made a view. Mapped it to EF. Now I get the following error: Error 2 Error 111: Properties referred by the Principal Role App must be exactly identical to the key of the EntityType MaMDBModel.App referred to by the Principal Role in the relationship constraint for Relationship MaMDBModel.FK_AppsData_App. Make sure all the key properties are specified in the Principal Role. D:\MaM\Dev\MamAdmin_1.0\MaMDBEntityFramework\MaMModel.edmx 768 11 MaMDBEntityFramework

this is my edmx:

http://ge.tt/3rRWTOR/v/0?c

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1 Answer

  1. Editorial Team

    You can create a VIEW using a JOIN between these 2 tables. After this you can use that View from EF.

    Do this in SQL

    CREATE VIEW [ViewName] AS
SELECT *
FROM Table1 JOIN Table2 ON Table1.AppGuid = Table2.AppGuid

    And import ViewName in your Entity Framework model (as you would do with a normal SQL Table) and use it to query whatever you need

    EDIT: Have a look at this link for more info http://www.mssqltips.com/sqlservertip/1990/how-to-use-sql-server-views-with-the-entity-framework/

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