Ophaned index

Question

Ophaned index

Steve Hurst

SSC Veteran

Points: 238
More actions
October 29, 2015 at 4:25 pm

#321878

I have an entry in the system.indexes table for an index that no longer exists on the table. How can I remove this?

Viewing 5 posts - 1 through 5 (of 5 total)

You must be logged in to reply to this topic. Login to reply

Jeff Moden SSC Guru Points: 1004696 More actions · Answer 1

Steve Hurst (10/29/2015)
I have an entry in the system.indexes table for an index that no longer exists on the table. How can I remove this?

How have you determined that the index no longer exists?

--Jeff Moden

RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

Change is inevitable... Change for the better is not.

Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

Steve Hurst SSC Veteran Points: 238 More actions · Answer 2

Two things, first the index does not show against the table in SSMS under the Tables (table_name) Indexes. Second, it came to light when running a script to rebuild the index:

IF EXISTS (SELECT name FROM sys.indexes WHERE name = 'part_needi17')

DROP INDEX part_needi17 ON part_need

This fails because the If EXISTS returns True and then the DROP fails.

John Mitchell-245523 SSC Guru Points: 148809 More actions · Answer 3

Index names aren't unique across the database. You must have an index called part_needi17 on a different table.

John

ChrisM@Work SSC Guru Points: 186127 More actions · Answer 4

Steve Hurst (10/30/2015)
Two things, first the index does not show against the table in SSMS under the Tables (table_name) Indexes. Second, it came to light when running a script to rebuild the index:
IF EXISTS (SELECT name FROM sys.indexes WHERE name = 'part_needi17')
DROP INDEX part_needi17 ON part_need
This fails because the If EXISTS returns True and then the DROP fails.

IF EXISTS (SELECT 1 FROM sys.indexes WHERE name = 'part_needi17'

AND object_id = OBJECT_ID('part_need')

DROP INDEX part_needi17 ON part_need

To find out what table the index is associated with:

SELECT TableName = object_name(object_id), *

FROM sys.indexes

WHERE name = 'part_needi17'

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden