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Posted by David Portas on 03/10/06 14:01
deebeeay@gmail.com wrote:
> Yes I agree, auto-growth isn't good and by that same token a regular
> shrink is probably not a good idea.
>
> However I'd still like to know if a dbcc shrinkfile would then require
> a post full database backup to ensure recoverability.
Shrinking a data file does not invalidate the log. However, it will
cause an exceptional amount of logging. Shrinking may require at least
as much log as you have data in the file(s) being shrunk. So your next
log backup could be vastly inflated. Assuming your database is offline
you may want to backup the log with the TRUNCATE ONLY option
immediately after shrinking and then perform a database backup. That's
not essential but it does mean you can return the log to its more
typical size. On the other hand if you think you need to do this
regularly then you'll have to ensure sufficient log space to support it
- so shrinking the data file is usually a false economy because it
moves data around without reducing the storage requirement.
--
David Portas, SQL Server MVP
Whenever possible please post enough code to reproduce your problem.
Including CREATE TABLE and INSERT statements usually helps.
State what version of SQL Server you are using and specify the content
of any error messages.
SQL Server Books Online:
http://msdn2.microsoft.com/library/ms130214(en-US,SQL.90).aspx
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