ef-database-first

I'm in a situation where I have a table called Elements . Now I'm creating a table called Divergences that will store basically pairs of Elements . The purpose of Divergence is to check if two Elements have diverging answers. Element Divergence --------- ---------- ElementId ElementId1 ElementId2 In the above table schema, ElementId1 and ElementId2 are Foreign Keys mapping to ElementId in Elements table and form the composite primary key for the Divergence table. I use Database First approach where I create the tables in SQL Server Management Studio and later I do a Update Model from Database.

I am using EF 4.1 with database first. Example table: CREATE TABLE dbo.Product( [ID] [int] IDENTITY(1,1) not null, Title nvarchar(200) not null, CreateDate datetime not null default(getdate()), ) When I add a new row, I get an exception about DateTime type overflow. The getdate() of database settings is invalid. I must be set the storeGeneatePattern property of the createdate field to Computed . Is there any way to let the EF automatically generated the DateTime column without manually set?? No EF will never use your database default. The reason is that your entity has non nullable DateTime

I am having a weird issue with MySql Connector(6.8.3) and EF6. I was working on a WebApi project where I use MySql and EF6 with Database first approach. Everything worked fine[even deployed on one of the test servers] until I changed the database from 'Test' database to 'Production' database [just the database name] in the connection string and updated the model[just to see nothing is broken!]. After that, it failed to connect to database. So, I changed the connection string back and rebuilt the solution, then I got bunch of 'Mapping' warnings. I deleted the model and tried to create the model

Our Solution is currently based on Entity Framework Database First. We have a T4 Template that generates repository classes from the EDMX. We are reviewing our planned approach for releasing changes, especially Database changes. If we continue with Database first, then we will need to separately generate scripts to change the development and other databases. It seems that with Code First, we simply change the model and that generates scripts to change the various databases. This seems more straightforward, does not involve hand crafting scripting processes and lower risk. So, if we make the

We are using Entity Framework database-first for our Oracle database. For some reason Number(5) becomes Int16 - short Max Number(5) value is 99999 Max Int16 value is 32767 Problem... is there a way to instruct the mapper to translate Number(5) to int32 ? Solved it, Added this to the web.config: <oracle.dataaccess.client> <settings> <add name="int16" value="edmmapping number(4,0)" /> <add name="int32" value="edmmapping number(9,0)" /> </settings> </oracle.dataaccess.client> Recreated the Model with the *.edmx file and... Now Number(5) is Int32 instead of Int16 and Number(10) is Int64 instead of

How to use Repository pattern using Database first approach in entity framework.I got some idea while going through resources available on internet but for real time applications I am not sure how to implement repository pattern on the auto generated classes from the DB first approach. I have already gone through some links in SO but I did not get any clear idea.I am new to this one. Thanks in Advance. The code generation tool will only modify the classes that are mapped to the XML files. You have a couple of options: 1) You can extend the mapped classes by using partial classes. Partial