SQL Server Update Security Patches


I need the steps to applying SQL Server 2005 or 2008 R2 update security patches as I've never done.  
If videos are available would be helpful too; underwise, provide steps on how to apply security update patches/hotfixes from Development to Production.
FavorableAsked:
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Raja Jegan RSQL Server DBA & Architect, EE Solution GuideCommented:
Applying Security Patches or Service packs is a simple process..
Download the latest Service Pack for SQL Server 2005 ie., SQL Server 2005 SP4 and install as specified in the link below:

http://sqlblog.com/blogs/andy_leonard/archive/2008/03/14/applying-sql-server-service-packs-and-hotfixes.aspx

Note:
1. For SQL Server, Service packs are cumulative or incremental which means that the hotfixes released now and then would be consolidated into the Service Pack and the later fixes are included in the next service pack along with the prior hotfixes included in earlier Service pack.
2. You can apply Security patches as and when they are released.. (Installation step would be similar to the one specified in the link above)
3. Apply hotfixes only if you encounter that particular error.
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FavorableAuthor Commented:
solution was very helpful.
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Microsoft SQL Server 2008

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