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SQL Server 2005
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SQL Server 2005 Performance Tuning
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Rebuild Index vs Drop and Create Index
Rebuild Index vs Drop and Create Index
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ATMDBA
ATMDBA
Posted Thursday, July 10, 2008 11:24 AM
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Which option uses less log space or writes to the log file the least: 1.rebuild index or 2. dropping an index and then creating it again?
The reason I ask is because I need to rebuild a heavily fragmented index on a SQL 2005 database. We currently have space issues on the drive that the database log file resides on and when we rebuild the index the drive fills up and we are unable to complete the task. At this time, the easy solution of adding more disk space is not an option.
Post #531822
Steve Jones - SSC Editor
Steve Jones - SSC Editor
Posted Thursday, July 10, 2008 12:05 PM
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Drop and recreate should use less log space.
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@way0utwest
Forum Etiquette: How to post data/code on a forum to get the best help
Post #531853
ATMDBA
ATMDBA
Posted Thursday, July 10, 2008 3:30 PM
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Thanks for the reply Steve.
We have decided to set the Recovery Model of the database to Bulk-logged and then drop and recreate the index. After creating the index we will set the Recovery Model back to Full. The bulk-logged recovery model minimally logs bulk operations, in my case the creation of an index.
Post #532009
noeld
noeld
Posted Thursday, July 10, 2008 4:21 PM
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shensarling (7/10/2008)
Thanks for the reply Steve.
We have decided to set the Recovery Model of the database to Bulk-logged and then drop and recreate the index. After creating the index we will set the Recovery Model back to Full. The bulk-logged recovery model minimally logs bulk operations, in my case the creation of an index.
Make sure you take a full backup or at least a log backup "right after" you switch the recovery mode.
* Noel
Post #532034
Perry Whittle
Perry Whittle
Posted Friday, July 11, 2008 1:37 AM
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do you mean reorganise vs drop and create rather than rebuild vs drop and create
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"Ya can't make an omelette without breaking just a few eggs"
Post #532192
ATMDBA
ATMDBA
Posted Friday, July 11, 2008 1:27 PM
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The index was heavily fragmented so I wanted to compare the rebuild vs the drop and create.
Post #532774
Perry Whittle
Perry Whittle
Posted Friday, July 11, 2008 3:54 PM
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oh OK. There are advantages and disadvantages of both, the following link details rebuild vs drop and create
http://msdn.microsoft.com/en-us/library/ms189858.aspx
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"Ya can't make an omelette without breaking just a few eggs"
Post #532881
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