Thanks for the article.

Msg 911, Level 16, State 1, Line 1
Could not locate entry in sysdatabases for database ‘MyDatabase’. No entry found with that name. Make sure that the name is entered correctly.
[dbo].[Event_Classes]

You are the man, you really helped. I spend more than two days trying to find out what the problem was with my queries, little did i know that I needed to reindex my database tables and then update the statistics.

You are one great DBA, I must say

SELECT * FROM sys.dm_db_index_physical_stats (NULL, NULL, NULL, NULL, NULL);
GO

2. Once you identfied the index with a higer number on the “avg_fragmentation_in_percen” column

3. Do some reading on Rebuild Index VS Reorganise

http://www.sqlmag.com/blogs/sql-server-questions-answered/sql-server-questions-answered/tabid/1977/entryid/12869/Default.aspx

I don’t want to give you all the answers, the only way is you finding the best way…. hope the above hints are helpful

I am running SQL 2008 database about 40 GB. i need to have the database online 24/7. If i do RE_INDEX slowing down the user (grows 2 GB more). but the user asking no downtime requires. But we need to run the index rebuild in this situation wat will do? kindly advice any one about this.

Thanks Sagar

Dim cmd As SqlCommand = New SqlCommand(“Exec sp_msForEachTable @COMMAND1= ‘DBCC DBREINDEX (”?”)’”, con)

PRASAD S J

should be

Exec sp_msForEachTable @COMMAND1= ‘DBCC DBREINDEX (”?”)”,

regards,

Public Overrides Sub GetUIData()
MyBase.GetUIData
If Me.RE_INDEX.SelectedValue = “Yes” Then
Dim con As SqlConnection = New SqlConnection(“Data Source=ACER\SQLEXPRESS;Integrated Security=SSPI;Initial Catalog=FAS”)
Dim cmd As SqlCommand = New SqlCommand(“Exec sp_msForEachTable @COMMAND1= DBCC DBREINDEX (‘?’)”, con)
con.Open()
cmd.ExecuteNonQuery()
con.Close()
Else
Throw New Exception(“Indexing not done!”)
End If
End Sub

——————————-
DECLARE @dbname VARCHAR(50) — database name
DECLARE @cmd VARCHAR(500)

DECLARE db_cursor CURSOR FOR
SELECT name as dbname
FROM master.sys.databases
WHERE name NOT IN (‘tempdb’) and is_in_standby = 0

OPEN db_cursor
FETCH NEXT FROM db_cursor INTO @dbname

WHILE @@FETCH_STATUS = 0
BEGIN
set @cmd = ‘use ‘ + @dbname + ‘; exec sp_MSForEachTable ”DBCC DBREINDEX(””?””,””””,90)”;’
print @cmd
exec (@cmd)

FETCH NEXT FROM db_cursor INTO @dbname
END

CLOSE db_cursor
DEALLOCATE db_cursor

——————————-

Dim cmd As SqlCommand = New SqlCommand(“Exec sp_msForEachTable @COMMAND1=DBCC DBREINDEX (‘?’)”, con)

the query

SELECT * FROM sys.dm_db_index_physical_stats
(DB_ID(N’mydatabase’), NULL, NULL, NULL , ‘DETAILED’);

should deliver the necessary information. (avg_fragmentation_in_percent)

but i think i can’t detect “Out of Order”-Pages with that function ?

the disadvante is that the function has to scan the whole DB once, wich is also very time consuming :(
In my short test, rebuilding all indexes took less time then analysing all…
i have to make more tests to come to a final result….

what do you think of just rebuilding the index based on its fragmentation-value ?
are there other indicators i should consider as well ?
How to detect “out of order”-pages ?

Normally how much time is required to ReIndex the 100GB of single database? on which basis time varies while running the ReIndexing query…