DBCC CheckTable returns following results, best way to deal with this?

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Home » SQL Server 2008 » Data Corruption (SS2K8 / SS2K8 R2) » DBCC CheckTable returns following results,...

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DBCC CheckTable returns following results, best way to deal with this?

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Posted Tuesday, March 12, 2013 8:06 AM

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Table error: table 'Items' (ID 1954106002). Data row does not have a matching index row in the index 'IX_Advertise_BrandCopy_Price_Stock' (ID 69). Possible missing or invalid keys for the index row matching:
Msg 8955, Level 16, State 1, Line 1
Data row (1:11226494:9) identified by (Id = 11078215) with index values 'AdvertiseFlag = 1 and BrandCopyParentId = 0 and NSFPPrice = 137.50 and NSFPQtyInStock = 0 and Id = 11078215'.
Msg 8951, Level 16, State 1, Line 1
Table error: table 'Items' (ID 1954106002). Data row does not have a matching index row in the index 'IX_ITEMS_ADVFLAG_PARETN_PRICE_STOCK' (ID 70). Possible missing or invalid keys for the index row matching:
Msg 8955, Level 16, State 1, Line 1
Data row (1:10834009:15) identified by (Id = 8885719) with index values 'AdvertiseFlag = 1 and BrandCopyParentId = 0 and NSFPPrice = 9.30 and NSFPQtyInStock = 0 and Id = 8885719'.

These indexes were created days ago and are rarely used. Is it safe to drop and recreate corrupted indexes?

Post #1429835

Posted Tuesday, March 12, 2013 8:07 AM

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Also, neither is the PK or a FK or clustered.

Post #1429837

Posted Tuesday, March 12, 2013 8:37 AM

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As always I would suggest backups before any work is carried out but it should be ok to drop the index and recreate, you will have to perform an offline rebuild. Have a read of the blog below before you do anything:

http://www.sqlskills.com/blogs/paul/teched-demo-nonclustered-index-corruption/

Also would have a look at your disk subsystem as well, corruption would suggest an issue.

Post #1429856

Posted Tuesday, March 12, 2013 8:38 AM

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Please run the following and post the full, complete and unedited output.

DBCC CHECKDB (<Database Name>) WITH NO_INFOMSGS, ALL_ERRORMSGS

Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass

Post #1429859

Posted Tuesday, March 12, 2013 8:41 AM

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GilaMonster (3/12/2013)

Please run the following and post the full, complete and unedited output.

DBCC CHECKDB (<Database Name>) WITH NO_INFOMSGS, ALL_ERRORMSGS

Running this now.

EDIT: This may take some time. It's only 5% done with its initial @BlobEater step.

Post #1429862

Posted Tuesday, March 12, 2013 9:50 AM

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GilaMonster (3/12/2013)

Please run the following and post the full, complete and unedited output.

DBCC CHECKDB (<Database Name>) WITH NO_INFOMSGS, ALL_ERRORMSGS

Msg 8951, Level 16, State 1, Line 1
Table error: table 'Items' (ID 1954106002). Data row does not have a matching index row in the index 'IX_Advertise_BrandCopy_Price_Stock' (ID 69). Possible missing or invalid keys for the index row matching:
Msg 8955, Level 16, State 1, Line 1
Data row (1:10834009:15) identified by (Id = 8885719) with index values 'AdvertiseFlag = 1 and BrandCopyParentId = 0 and NSFPPrice = 9.30 and NSFPQtyInStock = 0 and Id = 8885719'.
Msg 8951, Level 16, State 1, Line 1
Table error: table 'Items' (ID 1954106002). Data row does not have a matching index row in the index 'IX_Advertise_BrandCopy_Price_Stock' (ID 69). Possible missing or invalid keys for the index row matching:
Msg 8955, Level 16, State 1, Line 1
Data row (1:10945035:10) identified by (Id = 9750456) with index values 'AdvertiseFlag = 1 and BrandCopyParentId = 0 and NSFPPrice = 34.40 and NSFPQtyInStock = 0 and Id = 9750456'.
Msg 8951, Level 16, State 1, Line 1
Table error: table 'Items' (ID 1954106002). Data row does not have a matching index row in the index 'IX_Advertise_BrandCopy_Price_Stock' (ID 69). Possible missing or invalid keys for the index row matching:
Msg 8955, Level 16, State 1, Line 1
Data row (1:11226494:9) identified by (Id = 11078215) with index values 'AdvertiseFlag = 1 and BrandCopyParentId = 0 and NSFPPrice = 137.50 and NSFPQtyInStock = 0 and Id = 11078215'.
Msg 8951, Level 16, State 1, Line 1
Table error: table 'Items' (ID 1954106002). Data row does not have a matching index row in the index 'IX_ITEMS_ADVFLAG_PARETN_PRICE_STOCK' (ID 70). Possible missing or invalid keys for the index row matching:
Msg 8955, Level 16, State 1, Line 1
Data row (1:10834009:15) identified by (Id = 8885719) with index values 'AdvertiseFlag = 1 and BrandCopyParentId = 0 and NSFPPrice = 9.30 and NSFPQtyInStock = 0 and Id = 8885719'.
Msg 8951, Level 16, State 1, Line 1
Table error: table 'Items' (ID 1954106002). Data row does not have a matching index row in the index 'IX_ITEMS_ADVFLAG_PARETN_PRICE_STOCK' (ID 70). Possible missing or invalid keys for the index row matching:
Msg 8955, Level 16, State 1, Line 1
Data row (1:10945035:10) identified by (Id = 9750456) with index values 'AdvertiseFlag = 1 and BrandCopyParentId = 0 and NSFPPrice = 34.40 and NSFPQtyInStock = 0 and Id = 9750456'.
Msg 8951, Level 16, State 1, Line 1
Table error: table 'Items' (ID 1954106002). Data row does not have a matching index row in the index 'IX_ITEMS_ADVFLAG_PARETN_PRICE_STOCK' (ID 70). Possible missing or invalid keys for the index row matching:
Msg 8955, Level 16, State 1, Line 1
Data row (1:11226494:9) identified by (Id = 11078215) with index values 'AdvertiseFlag = 1 and BrandCopyParentId = 0 and NSFPPrice = 137.50 and NSFPQtyInStock = 0 and Id = 11078215'.
CHECKDB found 0 allocation errors and 6 consistency errors in table 'Items' (object ID 1954106002).
CHECKDB found 0 allocation errors and 6 consistency errors in database 'NewCatalog'.
repair_rebuild is the minimum repair level for the errors found by DBCC CHECKDB (NewCatalog).

Post #1429913

Posted Tuesday, March 12, 2013 10:41 AM

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Drop the indexes 'IX_Advertise_BrandCopy_Price_Stock' and 'IX_ITEMS_ADVFLAG_PARETN_PRICE_STOCK' (on the table 'Items') and recreate them. Don't rebuild them, drop and recreate.

Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass

Post #1429959

Posted Tuesday, March 12, 2013 10:43 AM

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GilaMonster (3/12/2013)

Drop the indexes 'IX_Advertise_BrandCopy_Price_Stock' and 'IX_ITEMS_ADVFLAG_PARETN_PRICE_STOCK' (on the table 'Items') and recreate them. Don't rebuild them, drop and recreate.

Doing so now. Our sysops guys checked the server and said there doesn't appear to be any issue with the hardware. How else can corruption like this occur?

Post #1429961

Posted Tuesday, March 12, 2013 10:45 AM

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IO subsystem problems in almost all cases. Could be as simple as a write cache that's not battery backed, could be misbehaving filter drives in the IO stack, etc.

Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass

Post #1429965

Posted Tuesday, March 12, 2013 10:46 AM

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Last Login: Monday, May 20, 2013 8:01 AM
Points: 254, Visits: 373

GilaMonster (3/12/2013)

IO subsystem problems in almost all cases. Could be as simple as a write cache that's not battery backed, could be misbehaving filter drives in the IO stack, etc.

DROP and CREATE worked where REBUILD failed. Thank you.

EDIT: I think I'll have to do some reading to understand your answer here though haha

Post #1429967

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