Hi Sir,

I have a pdm server 2015 with sql 2008 r2 installed. The OS is windows 2012 r2.

I am trying to install sql express 2012 on the same server so that I can use electrical 2d 2015. Will there be any issues or conflict?

I have checked below website and it states that it cannot be done.

Working with Multiple Versions and Instances of SQL Server

Anyone can advise?