DBCC SHOWCONTIG and SQL2k Maintenance Plan Question

When performing the DBCC SHOWCONTIG will this perform table locks? If
I use the WITH FAST option will this allow data to be written to the file?
Also when using the maintenance plan wizard to perform maintenance, will
tables be locked when the indexes are rebuilt and data is reorganized?
Thanks,
-Ben(I'm assuming you're using SQL Server 2000 as you mention the WITH FAST
option I added in that release)
DBCC SHOWCONTIG ... WITH FAST takes a table IS lock - thus allowing updates.
Without WITH FAST is takes a table S lock. Look in BOL for more details
here.
Rebuilding an index requires a table S lock if you're rebuilding a
non-clustered index, and a table X lock for rebuilding a clustered index.
Running DBCC INDEXDEFRAG only requires a table IX lock - so allows updates.
You should read the whitepaper below for more details:
http://www.microsoft.com/technet/treeview/default.asp?url=/technet/prodtechnol/sql/maintain/optimize/ss2kidbp.asp
Regards.
--
Paul Randal
Dev Lead, Microsoft SQL Server Storage Engine
This posting is provided "AS IS" with no warranties, and confers no rights.
"Ben" <ben@.brainspout.com> wrote in message
news:uoGzfuO5DHA.1368@.TK2MSFTNGP10.phx.gbl...
> When performing the DBCC SHOWCONTIG will this perform table locks? If
> I use the WITH FAST option will this allow data to be written to the file?
> Also when using the maintenance plan wizard to perform maintenance, will
> tables be locked when the indexes are rebuilt and data is reorganized?
> Thanks,
> -Ben
>