We’re getting closer to the release of R2 for GP 2013. Make sure you pay attention to info on MICROSOFT DYNAMICS GP 2013 R2 – The Database Upgrade from the GP support team.
MICROSOFT DYNAMICS GP 2013 R2 – The Database Upgrade – Dynamics GP Support and Services Blog
SQL & DataInstall, Upgrade & AdminMicrosoft & the GP EcosystemGP 2013
Archived post from 2014. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.