Disabling index by using select query

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Disabling index by using select query

DBA_1276

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September 7, 2010 at 5:53 am

#225698

Hi all,
Is there any way to disable an index by using select query.
Thankq

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Grant Fritchey SSC Guru Points: 398679 More actions · Answer 1

You can use ALTER INDEX for a nonclustered index to disable it. If you do this for a clustered index, it makes the data inaccessible.

ALTER INDEX myIndexName ON myTable DISABLE

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scott.pletcher SSCertifiable Points: 5958 More actions · Answer 2

There's not any hint to disable / ignore an index just for a given SELECT statement (you could force it to use a different index, but even that might not prevent use of the other index also).

Scott Pletcher, SQL Server MVP 2008-2010

Lowell SSC Guru Points: 323504 More actions · Answer 3

if the query has a WHERE statement, you could make the arguments non-SARG-able, and force it to use a table scan, but it would still use an index(probably the clustered index) to gather the data;

if you want to avoid a specific index you can use a hint to tell it a specific index to use instead.

Lowell

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