Comments on: A More Effective Selective Index Rebuild/Reorganize Strategy

By: Alonso Fernandez

Alonso Fernandez — Wed, 16 Mar 2011 01:04:45 +0000

Hi the error
“Gives an error when you try and run the script:
Msg 102, Level 15, State 1, Line 58
Incorrect syntax near ‘(’.”
is because you have a SQL 2005 with DB in compatibility 80 you can fix this error just declar 1 more variable @DB_ID smallint and set @DB_ID=DB_ID()
DECLARE @DB_ID smallint
DECLARE @table_var TABLE(
objectid int,
indexid int,
partitionnum int,
frag float,
page_count int
)

– Conditionally select tables and indexes from the
– sys.dm_db_index_physical_stats function and
– convert object and index IDs to names.
set @DB_ID = DB_ID()
INSERT INTO @table_var
SELECT [object_id] AS objectid,
[index_id] AS indexid,
[partition_number] AS partitionnum,
[avg_fragmentation_in_percent] AS frag,
[page_count] AS page_count
FROM sys.dm_db_index_physical_stats (@DB_ID,NULL, NULL , NULL, ‘LIMITED’)
WHERE [avg_fragmentation_in_percent] > @reorg_frag_thresh
AND page_count > @page_count_thresh
AND index_id > 0

By: Levente Rog

Levente Rog — Fri, 07 Jan 2011 15:28:42 +0000

How do I apply this script to run on all databases on the server?

By: DBA_Tech

DBA_Tech — Mon, 03 May 2010 20:53:08 +0000

I have been using this code for quite some time. It is great. Thanks! I qwas wondering if this could be modified to scroll through all user databases on a server and perform the indexing instead of only on a prescribed database?

Thanks!

By: Arman

Arman — Mon, 21 Dec 2009 20:17:44 +0000

Belle, thank you so much for this wonderful script. For a newbie DBA like me it has proven invaluable already. The last person responsible for databases had set up maintenance jobs to reorganize AND rebuild all indexes in all databases every night; ouch! Although the server is small (in comparison to some) this maintenance plan was taking almost 3.5 hours to run. Your script reduced it to less than 20 minutes, and now is run once per week. I was wondering if you are planning on extending this script in the future? As I said I’m a newbie, only started into the DBA world a few months back so am still learning. I have been reading information on LOB, Online rebuilding (Enterprise edition) and such and wondering if things like that need to be in this script or if the default variables on ALTER INDEX will cover it? Thanks again, and cheers!

By: belle

belle — Fri, 09 Oct 2009 19:03:56 +0000

yes it should

By: John

John — Thu, 08 Oct 2009 14:37:07 +0000

Great script!! – fillfactor in this script means that once the rebuild index operation performed will it set all the indexes to 80% fillfactor from original?

Thanks
John

By: JHopper

JHopper — Mon, 13 Jul 2009 21:26:07 +0000

Very nice script, Belle. Thanks for sharing!

By: Tarun Rodrigues

Tarun Rodrigues — Mon, 29 Jun 2009 23:28:44 +0000

The script concatenates PARTITION= to the reorganize/rebuild commands. Don’t you think the script would throw an error in case of ALTER INDEX.. REORGANIZE; because the string is already terminated by semi-colon (;)??? And if we try to concatenate partition = to this??

Infact partition= would be concatenated after the update statistics..? It would throw an error rt.??