Drop/create Index

Feb 16, 2007

Hi, all,
I want to re-create an index on a production table.
I got an error 644 "could not find index entry...".
The DBCC CHECKDB and CHECKTABLE gave me this:

Server: Msg 8928, Level 16, State 1, Line 1
Object ID 37575172, index ID 6: Page (1:939782) could not be processed. See other errors for details.
Server: Msg 8939, Level 16, State 1, Line 1
Table error: Object ID 37575172, index ID 6, page (1:939782). Test (*(((int*) &m_reservedB) + i) == 0) failed. Values are 7 and 36.
DBCC results for 'Mfg_DFSFNSF'.
There are 1142314 rows in 326143 pages for object 'Mfg_DFSFNSF'.
CHECKTABLE found 0 allocation errors and 2 consistency errors in table 'Mfg_DFSFNSF' (object ID 37575172).

The table script for the index is like this:

CREATE UNIQUE INDEX [Mfg_ITMDH_MbrIdx] ON [dbo].[Mfg_DFSFNSF]([_ITMDH_OwnRow], [_ITMDH_MbrKey], [RECTYPE]) WITH FILLFACTOR = 70 ON [PRIMARY]

My question is that can I drop it and run above create it to fix the problem in live mode?

I know the other option will be:
DBCC CHECKTABLE (FSDBMR.dbo.Mfg_DFSFNSF, repair_allow_data_loss)
But that has to put the db under single user mode.

Thanks!

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Here is my code,

1. create table t1 (id int )
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3. create table t2 (id int constraint f foreign key references t1(id))

4. ALTER TABLE t2 NOCHECK CONSTRAINT ALL
5. ALTER TABLE t1 NOCHECK CONSTRAINT ALL

6. drop index t1.u

I get a FK voilation exception. on line 6.
I was not expecting this, because I am doing 4 & 5

Is dropping the FK is only option?

Actually I am trying to move the unique index to a different file group.




------------------------
I think, therefore I am - Rene Descartes

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Hi,

I have a table which I am unable to drop the index.
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Below is the result after DBCC commands:

1. DBCC checktable(TB_LOCLoan)

Checking TB_LOCLoan
The total number of data pages in this table is 146542.
Table has 1596232 data rows.
Msg 605, Level 21, State 1
Attempt to fetch logical page 462136 in database 'DM_LOCLoan' belongs to object '1744009244',
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2. DBCC newalloc(DM_LOCLoan)

TABLE: TB_LOCLoan OBJID = 832005995
INDID=0 FIRST=60168 ROOT=642778 DPAGES=146542 SORT=0
Data level: 0. 146542 Data Pages in 18393 extents.
INDID=5 FIRST=463752 ROOT=463739 DPAGES=5304 SORT=1
Msg 2525, Level 16, State 1
Table Corrupt: Object id wrong; tables: alloc page 463616 extent id=463752 l page#=463752
objid in ext=-832005995 (name = -832005995) objid in page=832005995 (name = TB_LOCLoan)
objid in sysindexes=832005995 (name = TB_LOCLoan)
TOTAL # of extents = 18393

3. From Error Msg 2525, I have tried the suggested action

use DM_LOCLoan
go
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from sysindexes
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and distribution=463752
go

This query does not return any row.

I am running out of clue of how to proceed! Anybody come across this problem before?
I am very eager to solve this problem as the table is hanging here, I can't even drop it to recreate
and continue data loading.

Thank you.

Regards,
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syntax:
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go
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