有关Visual Studio Express和Professional的问题

If I have a project that I created in Visual Studio Professional (say, 2013) that uses the database functionality, would I still be able to open the project and make edits to the code using Express? Why I ask this is because we are a small software development firm. The budget limit we have means we'd like to keep purchases to the minimum. The main features we need for Visual Studio Professional is mainly creating the executable (.msi or .exe) and the database features.If I have a project that I created in Visual St