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Can I migrate from SQL server 2005 to SQL Server 2012

HollyTea asked
Is it even possible to upgrade from SQL 2005 (32bit) to SQL 2012 (64)?

I need to move an existing version of Microsoft Dynamics 2010, SQL 2005 from a Windows Server 2008 (32bit) to my new server running Windows 2012 R2, Dymanics 2013, SQL 2012.

Any suggestions would be appreciated.
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Scott PletcherSenior DBA
Most Valuable Expert 2018
Top Expert 2014

First, run the free MS compatibility analyzer tool to see what syntax or other errors you might have.

Next, figure out everything in the master db that you need to copy/dup to the new server, including logins, linked servers, certificates, etc..

Then everything you need to copy/dup from msdb to the new server. Are you using SSIS packages?  Those can be a real pain to migrate.

Once that's done, you can simply backup and restore OR create ... for attach each of the user dbs.  SQL will automatically convert them internally to the 2012 format.
IT Engineer
Distinguished Expert 2017
Is it even possible to upgrade from SQL 2005 (32bit) to SQL 2012 (64)?
In place upgrade, no. But you can migrate the databases from SQL Server 2005 to 2012 doesn't matter if it's from 32bit to 64bit.
Don't forget to change the compatibility mode to 11 after databases migration.