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 Phantom Indexes

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graz
Chief SQLTeam Crack Dealer

4149 Posts

Posted - 2004-08-19 : 14:46:00
I've got two cases of "phantom" indexes. I have an entry in sysindexes but the index doesn't appear in EM. Has anyone seen this before?

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Creating tomorrow's legacy systems today.
One crisis at a time.

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2004-08-19 : 14:55:56
I have not. But then again I do not think that I've ever cross referenced what I see in EM with what I see in sysindexes. Are any queries able to use the index? I wonder if it's possible for it to be orphaned in the system tables. Anyone modifying the system catalog directly?

Tara
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graz
Chief SQLTeam Crack Dealer

4149 Posts

Posted - 2004-08-19 : 15:10:12
Well ... that wasn't difficult to figure out. And it was even in Books Online if I dug enough. The entry for indid in sysindexes states

ID of index:
1 = Clustered index
>1 = Nonclustered
255 = Entry for tables that have text or image data

I was seeing all the 255 entries and trying to reindex them. I'm also seeing entries with a 0. I haven't figured those out yet but I'm guessing it's nothing too bad.

===============================================
Creating tomorrow's legacy systems today.
One crisis at a time.
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tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2004-08-19 : 15:15:29
You might take a look at my isp_DBCC_DBREINDEX blog. You'd be interested in the dynamically built select statement that grabs the indexes to be reindexed. Nigel helped me out with it.

Tara
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