I am performing clean installation from SQL 2008 to SQL 2012 on the same box (it won't be an upgrade). My question is how it is possible to migrate publications and subscriptions from one server to another? should I backup them or script them out, what about
other replication servers involved in this?
The best way to do this is to script out the publications and subscriptions, backup the database and restore it on the new publisher and then apply the publication script after enabling the publisher as a distributor.
You can try a no-sync subscription, but this is not normally recommended.
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