From Postgresql to SQL Express

From Postgresql to SQL Express

Dear all, 

i have a question:

We have a Postgresql (which is by default for SDP) , now we want to move to SQL 2012 express,

We want to keep all the configurations like business rules, additional fields, etc, 

if i make a backup from SDP application, can i restore it back when i change DB to SQL 2012?
will we encounter some problems with my task?

Thanks,

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