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Best Migration Path from MS SQL Server 2005 to MS SQL Server 2012

Posted on 2014-10-07
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Can somebody provide the best plan, path, tools/utilities, and processes to use in order to migrate an existing MS SQL Server 2005 instance running on Windows Server 2003 to MS SQL Server 2012 running on Windows Server 2012 ?  For example, are there built-in migration wizards that work well, and if so does one first have to migrate from MS SQL Server 2005 to MS SQL Server 2008 (and then from MS SQL Server 2008 to MS SQL Server 2012) to use those migration wizards ?  Or can one effectively use migration wizards built-in to a new installation of MS SQL Server 2012 to migrate from the existing MS SQL Server 2005 server ?  Do the built-in MS SQL wizards work pretty well, or are there some relatively inexpensive but effective third party tools (from Idera or others perhaps) that are well worth the money for such a project ?  And finally, are the DBs and Stored Procedures the main things that need to be migrated ?  Or are there any other processes or rules or alerts that need to be researched or migrated as well ?  TIA ...
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Question by:LGroup1
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Vitor Montalvão earned 500 total points
ID: 40366324
You can migrate directly from SQL Server 2005 to 2012. Best method should be side-by-side and using backup/restore or detach/attach.
First thing to do is to  run the SQL Server 2012 Upgrade Advisor on the SQL Server 2005 instance before you start with the upgrade. That tool will search for deprecated features and the compatibility of the code and data and will give you a list of warnings and errors at the end of the report.
If you have reports (SSRS), packages (SSIS) and cubes (SSAS) you might consider migrate them also. But usually you won't need third-party software.
After migrating the databases don't forget to set their compatibility to SQL Server 2012, rebuild the indexes and run a full backup.
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by:LGroup1
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Okay, thanks.  This process seems pretty easy, should this be a pretty straightforward upgrade ?  Do these things usually go pretty smoothly ?
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by:Vitor Montalvão
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Depends on the report from the SQL Server 2012 Upgrade Advisor. If nothing has to been reported than usually is that simple as I wrote. Otherwise you need to fix the warning and errors reported before migration.
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by:LGroup1
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Thanks !
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by:LGroup1
ID: 40369059
Also, does one have to migrate the settings from the MS SQL Server 2005 System DBs, and if so how is that done ?  Or is that basically just including the SSRS, SSIS, and SSAS packages ?  In addition, would it be recommended to migrate from MS SQL Server 2005 to MS SQL Server 2008 first and then to MS SQL Server 2012, or is it okay to jump right from MS SQL Svr 2005 straight to MS SQL Svr 2012 ?  TIA ...
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by:Vitor Montalvão
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You don't migrate the settings. It's a new server and a new SQL Server version so you should configure the new instance according your resources.
There's no need to migrate to SQL Server 2008 first. SQL Server 2012 recognizes databases from SQL Server 2005.
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by:LGroup1
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Great, thanks again,
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