Hi,
I want to find out what is a good way to identify indexes that need
rebuilding. I tried to run DBCC showcontig and identify them based on
the scan density %. And according to a Microsoft Tech Net - All About
SQL Server Indexes discussion, the expert stated that based on the
Density (below 20%), I can pick out those indexes associated to the
table and run DBCC INDEXDEFRAG. But instead, I ran DBCC DBREINDEX to
rebuild all indexes associated to the specific table. The strange part
is that some tables, which have 20% or below scan density do not have
any indexes. So, I am confused!
Thanks in advance.
1  3318 
Check out the white paper on SQL 2000 Index Defrag Best Practices: http://www.microsoft.com/technet/pro.../ss2kidbp.mspx The strange part
is that some tables, which have 20% or below scan density do not have
any indexes. So, I am confused!
You can create an clustered index on a heap (a table with no clustered
index) in order to reorg the table. You can drop it afterward if it is not
needed. It's usually a good idea to have a clustered index on every table
unless you have a specific reason not to.
--
Hope this helps.
Dan Guzman
SQL Server MVP
"xo55ox" <xo****@hotmail .com> wrote in message
news:ab******** *************** ***@posting.goo gle.com... Hi,
I want to find out what is a good way to identify indexes that need
rebuilding. I tried to run DBCC showcontig and identify them based on
the scan density %. And according to a Microsoft Tech Net - All About
SQL Server Indexes discussion, the expert stated that based on the
Density (below 20%), I can pick out those indexes associated to the
table and run DBCC INDEXDEFRAG. But instead, I ran DBCC DBREINDEX to
rebuild all indexes associated to the specific table. The strange part
is that some tables, which have 20% or below scan density do not have
any indexes. So, I am confused!
Thanks in advance. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: xo55ox |
last post by:
Hi,
I want to find out what is a good way to identify indexes that need
rebuilding. I tried to run DBCC showcontig and identify them based on
the scan density %. And according to a Microsoft Tech Net - All About
SQL Server Indexes discussion, the expert stated that based on the
Density (below 20%), I can pick out those indexes associated to the
table and run DBCC INDEXDEFRAG. But instead, I ran DBCC DBREINDEX to
rebuild all indexes...
|
by: DraguVaso |
last post by:
Hi,
I want my application do different actions depending on the exception it
gets.
For exemple: I have an SQL-table with a unique index. In case I try to
Insert a record that's alreaddy in it I get this exception: "Cannot insert
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What I'm looking for is a way to identify the exception: in case I get this
|
by: kalpesh.shah |
last post by:
kalpesh.s...@gmail.com Feb 1, 6:50 am show options
Newsgroups: comp.databases.informix
From: kalpesh.s...@gmail.com - Find messages by this author
Date: 1 Feb 2005 06:50:21 -0800
Local: Tues, Feb 1 2005 6:50 am
Subject: how do you know indexes have been fragmented
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by: Tom |
last post by:
Given: A binary data file of records.
Task: Random access using seekg().
I've never found any documentation stating that the offset from begin
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i.name AS IndexName,
ips.avg_fragmentation_in_percent
FROM sys.dm_db_index_physical_stats(DB_ID(), NULL, NULL, NULL,
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