SQL database migration.

we need to move our SQL database to a new server and while doing this we would like to update our SQL version from 2012 to a newer version

we are on eb version 15.5.1 and SQL 2012, are there any guides to help move a database

Can we use a later version of SQL? 

We do plan to upgrade our version of eB this year but the current server supporting the SQL database is having issues