SQL Server 2008 Rebuild Index Fails

Hi everyone,

I have a major problem with my SQL Server 2008 maintenance plan.

I have a huge database (40 Go) that need to be re-indexed every day.
Since four days, I have the following error :

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Code: 0xC0024104    
Source: Rebuild Index      
Description: The Execute method on the task returned error code 0x80004002 (Unable to cast object of type 'System.DBNull' to type 'System.String'.). The Execute method must succeed, and indicate the result using an "out" parameter.  End Error  DTExec: The package execution returned DTSER_FAILURE (1).
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I made some searches on the web but found nothing.

Can you help me or get a hint on what to check to make this work again?

Thank you
luminis86Asked:
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Surendra NathConnect With a Mentor Technology LeadCommented:
Step 1:
Use the below code to generate the reorganize script

Select 'Alter Index All on ' + name + ' REORGANIZE ; ' From sys.tables

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once this code is executed you will get a set of alter statments in your SSMS query result windows copy them back into the query window and execute them.

If there is an error for a particular table, then that table is the culprit when reorganizing is done -- Go to step 3 then,

If the reorganize gets done succesfully.

Then run the below code

Select 'ALTER INDEX ALL ON ' + name + ' REBUILD WITH (FILLFACTOR = 80, SORT_IN_TEMPDB = ON,STATISTICS_NORECOMPUTE = ON); ' From sys.tables

Open in new window



once this code is executed you will get a set of alter statments in your SSMS query result windows copy them back into the query window and execute them.

If there is an error for a particular table, then that table is the culprit when rebuilding is done -- Go to step 3 then,


Step 3

Try to do drop the indexes and recreate them here... they will solve the isssue completly.


Step 4
If you didn't find the issue at all with step1 and step2 then try running DBCC CHECKDB and re-run the maintance plan.
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