For an project, I need to migrate an Access database to SQL server 2012 express, I found some ways to do this, like using Microsoft up-sizing, but this question is not very
When You want to create/Edit a database diagram or Edit Table from a SQL SERVER 2008 R2 Client(SSMS 2008) to a SQL SERVER 2012 Instance, You will get the error shown as given below:
This backend version is not supported to design database diagrams or tables. (MS Visual Database Tools)
It seems that SQL Server 2008 R2 does not support SQL Server 2012 Database Diagram Table Modify. Solution: install SQL SERVER 2012 to access the functionality from the link below
http://www.microsoft.com/en-us/download/details.aspx?id=29062