Hi,
I have a script to rebuild and reorganize indexes for sybase i.e reorg rebuild index... like command i have. Now i want similar command for MSSQLSqlserver.plz help me.
I have a requirement to only rebuild the Clustered Indexes in the table ignoring the non clustered indexes as those are taken care of by the Clustered indexes.
In order to do that, I have taken the records based on the fragmentation %.
But unable to come up with a logic to only consider rebuilding the clustered indexes in the table.
create table #fragmentation
(
FragIndexId BigInt Identity(1,1),
--IDENTITY(int, 1, 1) AS FragIndexId,
DBNAME nvarchar(4000),
TableName nvarchar(4000),
[Code] ....
Hi all
I understand the difference between REBUILD and REORGANIZE. Just wondering if you can do both in the same script or do you have to rebuild the index first and later reorganize?
Thanks,
don
will maintenance tasks like rebuilding and reorganizing indexes be replicated in transactional replication, or do i have to setup these management tasks on the subscribers as well?
View 4 Replies View RelatedAll,
My employer is concerned that the Rebuild/Reorganize indexes will slow down the server,will take more time and our online application users will experience slow responses. And they don't want to do off line defrag either.
So I am going to suggest to spread out the Rebuild/Reorganize indexes in such a way that rebuild/reorganize is done in small chunks rather than doing it all at once.
What do you guys think of this approach?
Thanks,
I am build up a maintenance plan to reorganize and rebuild the index of one database. After that maintenance plan is performed, i found that most of indexes's avg_fragmentation_in_percent doesn't reduce. Is that any efficiency way to reduce fragmentation of the indexes?
View 9 Replies View RelatedWe face slow performance issue for like taking long time for same query execution after We apply index rebuild and reorganize index. But, after execution of query or procedure for 2 -3 times, performance will be faster. I have following questions
1 do we need to update stats after we rebuild an reorganize index.
2. is it will be slow for 1-2 times for every query and stored procedure execution after we rebuild and reorganize index?
I am using the Maintencance Plan wizard, but it only allows me to either select the "reorganize data and indexes" option or the "update statistics" option (in the Optimizations tab). I can't select both of them. What is the reason for this?
joe
My index reorganise maintenance plan fails partly due to the disabled indexes
Executing the query "ALTER INDEX [I_ModelSecurityCommon_RECID] ON [dbo]...
" failed with the following error: "Cannot perform the specified operation on disabled index 'I_ModelSecurityCommon_RECID' on table 'dbo. Model SecurityCommon'.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly.
I don't want to delete the indexes as they are standard indexes that where on the DB from install.. any script that will reorganise all enabled indexes? and also to rebuild?
Hi All,
SQL 7 REQUIRES THE DBA TO MANAGE THE INDEXES AND IN PARTICULAR THE FILL FACTOR AVAILABILITY. DOES SQL SERVER 2000 AUTOMATICALLY ADDRESS THIS OR DO WE STILL HAVE TO PERIODICALLY RUN,
sp_MSforeachtable @command1="print '?' DBCC DBREINDEX ('?')"
TO REBUILD ALL INDEXES IN THE DATABASE?
Thanks in advance,
-Praveena
Hi!
I'm not a dba at all, just a simple developer but I have got the assignment to help out with performance problems on a db.
I noticed that almost all indexes are fragmented 75-99%. Can I rebuild them when the database is in use? Can I reorganize indexes when the db is used?
/Magnus
Jesus saves. But Gretzky slaps in the rebound.
In the maintance plans there is a Rebuild Index choice.
If u choose tables and views the plan executes
ALTER INDEX <index> ON <table> ;REBUILD
for all indexes in the datebase.
I am currently using this plan on our production DB, scheduled for every Saturday night.
I wonder if there is a downside of using maintance plans. Because it seems to be doing the job. Any comments?
I am upgrading from SQL2000 to SQL2005.
I have restored my 2000 db to 2005.
I have changed the Compatiblilty level to 90.
Now I need to reindex.
How do I reindex all the tables at once?
Thanks for ALL your help
r/p
how can run a command to rebuild all indexes in a database?
So I'm reading http://www.sql-server-performance.com/tips/clustered_indexes_p2.aspx and I come across this:
When selecting a column to base your clustered index on, try to avoid columns that are frequently updated. Every time that a column used for a clustered index is modified, all of the non-clustered indexes must also be updated, creating additional overhead. [6.5, 7.0, 2000, 2005] Updated 3-5-2004
Does this mean if I have say a table called Item with a clustered index on a column in it called itemaddeddate, and several non-clustered indexes associated with that table, that if a record gets modified and it's itemaddeddate value changes, that ALL my indexes on that table will get rebuilt? Or is it referring to the table structure changing?
If so does this "pseudocode" example also cause this to occur:
sqlstring="select * from item where itemid=12345"
rs.open sqlstring, etc, etc, etc
rs.Fields("ItemName")="My New Item Name"
rs.Fields("ItemPrice")=1.00
rs.Update
Note I didn't explicitly change the value of rs.fields("ItemAddedDate")...does rs.Fields("ItemAddedDate")=rs.Fields("ItemAddedDate") occur implicitly, which would force the rebuild of all the non-clustered indexes?
Hi,
I just want to know whether any advantage or disadvantage
in doing Reorganize Index And Rebuild Index ....
Plz do comment on this ASAP !!!!
Thanks in advance
Regards
Arv
Hi,
I just want to know whether any advantage or disadvantage
in doing Reorganize Index And Rebuild Index ....
Plz do comment on this ASAP !!!!
Thanks in advance
Regards
Arv
We have a script running everyday for rebuild and re-organisation of indexes. But, somehow its getting failed. Attached script for your consideration. There is no database name with amoperations. There is table called DatabaseObjectAudit but it exist on master db.
Message:
-->Start Index Maint
-> Gathering fragmentation information (can take a while!)
-> Gathering COMPLETE : Total of 43 databases were found.
-> Gathering COMPLETE : Total of 1622 indexes were found.
[code]...
I have a number of databases that are being transactionally replicated from SQL 2000 Enterprise edition publisher to SQL 2005 Enterprise edition subscriber. I have included indexes in the replication. The subscriber database is then accessed and the data de-normalised and aggregated for reporting purposes.
My question is this: I want to periodically re-build the indexes on the publisher and subscriber via an automated task. If I rebuild the indexes on the publisher, will that automatically replicate to the subscriber? Will there be a problem with the "snapshot being out of date", and therefore replication stopping? I run a new snapshot once a day in the small hours of the morning. If there is likely to be a problem with the rebuild throwing the replication out, would it be wise to have the rebuild job running just before the new snapshot is taken?
Any help/advice appreciated.
Hi All.
Our inhouse app used to run on a SQL2000, but we've recently moved it to 2005.
The move was done by way of backup and restore (it was on a whole new server).
After the move, an odd problem showed up: once in a while, the server seems incapable of finding/using its indexes: everything starts working slowly, until I run a maintenance plan that rebuilds its indexes etc.
In the database/server all relevant options seem to be ok (auto update statictiscs etc.), and my conclusion that it doesn't use its indexes comes from the fact that:
* it gives the results from certain select statements in a totally different order (although the set of rows is the same),
* performance is (all of a sudden) very slow (seconds turning to minutes!!)
This happens:
* at least after a reboot of the server
* sometimes just in the middle of the day
The only way I've found to solve the matter, is by running the maintenance plan to rebuild the indexes, but sometimes this only seems to work the second time.
Does anybody share this experience, or know what to do about it?
Thanks,
Nick.
We are planning to standardize our newly deployed sql server, As a part of it we have configured 2 maintenance plans 1) Update Statistics which runs daily and 2) Index Reorganize which runs on weekly.
Apart from above, any other things to be in place for better maintenance of the sql server.
Also, how to Index Rebuild activity for clustered indexes requires any downtime.
Do I need to rebuild my indexes on my High Availability listeners?
When I do a full index rebuild on my primary DB's. Does rebuilding also send the rebuild to the listener(s)?
I am using SQL Server 2008 (RTM) Standard Edition.
In my environment, one of my Database size is 75 gb and I have to create a plan for index rebuild using maintenance plan.But when we rebuild indexes, it requires some space on data and log files of database.how can we calculate disk space requirement for index rebuild process ?
We have a maintenance plan running everyday for rebuild and re-organisation of indexes. But, somehow its getting failed. Here is the script that we are running for rebuild or re-org.
/*
Script to handle index maintenance
Tuning constants are set in-line current values are;
SET @MinFragmentation
SET @MaxFragmentation
SET @TrivialPageCount
[code]....
If I rebuild some indexes that are above 30% of average fragmentation, should I after that update statistics?
Also, How can I see if I Need to update statistics^on the tables of my database?
Normally we use rebuild, reorganize indexes when it is required, I used a SQL job using maintenance plan to run daily and rebuild, reorganize indexes and update statistics but I do not know if it runs either they are required or not. Should this plan automatically execute the build upon required indexes to be rebuild or it fires either they are required to be executed or not.
View 2 Replies View RelatedI'm upgrading to SQL 2012 from 2008R2, while doing so i will be rebuilding all the indexes on all the database. In my previous environment while doing so, i got space related error in primary filegroup for insufficient space in the primary filegroup. Is there any rule of thumb about how much space is required by index rebuild command for each database, or is there a safe threshold for free space in the database?
View 9 Replies View RelatedIS there a way to remove all indexes from a table with one single command ( without having to know what the index name is ) ;
View 2 Replies View RelatedHi,
Can anyone help, how to find client's hostname using RDP from MSSQL command.
In simple words,
I am connecting to Remote desktop and using MSSQL server management studio in the remote desktop. And when I run select host_name(), it returns the RDP machine name. However, I wish to see my own computer name.
Thanks in advance.
susuown
HiI'm using a simple SqlDataSource to connect to a stored proc to delete a number of rows from different tables.In my SQL im using: DECLARE @table1Count int
DELETE FROM Table1 WHERE id = @new_id
SET @table1Count=@@rowcount
SELECT @table1Count I'm then using an input box and linking it to the delete control parameter. Then on a button click event i'm running SqlDataSource1.Delete() which all works fine. But how do i get the @table1Count back into my aspx page? Thanks
1. Use mssql server agent service to take the schedule
2. Use a .NET windows service with timers to call SqlClientConnection
above, which way would be faster and get a better performance?
Hi there .
1. Is there any way to reorganize table ?
2. How difference between truncate table and delete * from AAA
Regards.
DECLARE @strIndex_Name varchar(50)
DECLARE @strTable_Name varchar(50)
SET @strTable_Name = 'DIM_AR_CLASS'
SET @strIndex_Name = 'IX_DIM_AR_CLASS_1'
PRINT @strTable_Name
PRINT @strIndex_Name
ALTER INDEX @strTable_Name ON @strIndex_Name REORGANIZE
Result msg:
DIM_AR_CLASS
IX_DIM_AR_CLASS_1
Msg 102, Level 15, State 1, Line 12
Incorrect syntax near '@strTable_Name'.
If i change the statement as below then it work fine.
ALTER INDEX IX_DIM_AR_CLASS_1 ON DIM_AR_CLASS
REORGANIZE
Anyone know why ?Does this alter index statement not support variable during execution time?
Appreciate any help.
Thanks.