SQL Server Admin 2014 :: Update Stats After Rebuild And Reorganize Index
Jun 26, 2015
We 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?
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Sep 15, 2015
I'm trying to determine how much space I would need for my data drive and log file drive to do index rebuild. I have a database which is 100gb, it is in simple recovery mode. let me know what to have a look at to determine how much space.
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Mar 2, 2015
I have 10 Gb index and disk space only left 5gb .
How can i rebuild index ?
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Mar 18, 2015
I have a job that runs nightly, rebuild index. job runs fine every night but every few weeks it fails.
USE msdb
GO
EXECUTE dbo.IndexOptimize
@Databases = 'USER_DATABASES',
@FragmentationLow = NULL,
@FragmentationMedium = 'INDEX_REORGANIZE,INDEX_REBUILD_ONLINE,INDEX_REBUILD_OFFLINE',
@FragmentationHigh = 'INDEX_REBUILD_ONLINE,INDEX_REBUILD_OFFLINE',
@FragmentationLevel1 = 5,
@FragmentationLevel2 = 30,
@SortInTempdb = 'Y',
@UpdateStatistics = 'ALL',
@OnlyModifiedStatistics = 'Y'
This calls the Sp that does the Reindex. It fails at the update statistics with a very generic message. like " Command: UPDATE STATISTICS [xxxx_DB].[dbo].[xxxx_xxx] [_WA_Sys_00000007_49C3F6B7] [SQ... The step failed."
I suspect it has more error but this is all it is showing me when I right click on the job history. therefore, I updated the job step in the advance tab with log to a txt file. Am I on the right track or there is another way to see error some where else.
I looked at the logs but they didn't show any thing.
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Oct 28, 2015
My SSIS package is running very slow taking so much time to execute, One task is taking 2hr for inserting 100k records, i have disabled unused index still it is taking time.I am rebuilding/Refreshing indexes and stats once in month if i try to execute on daily basis will it improve my SSIS Package performance?
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Sep 18, 2007
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?
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Mar 18, 2008
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
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Mar 18, 2008
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
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Jul 23, 2014
I had to reinstall my local copy of SQL a few weeks ago, which naturally overwrote the
msdb.dbo.sysmanagement_shared_server_groups_internal and
msdb.dbo.sysmanagement_shared_registered_servers_internal tables.
However I still have the local XML file that SSMS reads so I can still access the groups, I just get weird errors when trying to re-register my install as the new CMS. How to rebuilt those tables from the XML file or know of a way to repopulate?
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Jul 27, 2015
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)?
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Sep 28, 2015
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.
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May 13, 2015
i have add maintenance plan rebuild index in sql server 2014 log file increased very tremendous space.
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Jul 30, 2007
We have a 20 GB database and reorganize indexes and update statistics maintainance takes about 4 hours and the log files grows out of control what is a serious problem since it can not be truncated (database mirroring).
Ivan
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Jun 11, 2015
Dead lock is coming in select query in application because of index. It is identified after enabling trace in database and identified by reading deadlock xml file. After index removal, deadlock is not coming in same query. But it is affecting query's performance slightly. Is it correct way to remove index if dead lock is coming because of index?
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Apr 26, 2015
We have a database with a table that contains around 180m records. Each day a further 70k are inserted. No records are ever deleted as this table is used for archiving only.Users are required to perform SELECTs on this table constantly but due to the high number of INSERTs the indexes become very fragmented very quickly. My aim is to avoid daily rebuilds of the indexes which is what our software house is telling us we have to do.
This is the DDL for the table:
CREATE TABLE [dbo].[Inventory](
[EAN] [bigint] NOT NULL,
[Day] [smalldatetime] NOT NULL,
[State] [int] NOT NULL,
[Quantity] [int] NULL,
[StockValue] [float] NULL,
CONSTRAINT [PK_Inventory] PRIMARY KEY CLUSTERED
[code]...
There are also three clustered Indexes on this table each referencing a single column. The problem from my side is that I cannot understand why the three columns in a primary key would also be configured as non-clustered indexes.My solution would be one of the following:
1. Accept the tables are going to be fragmented and require a daily rebuild (don't like this one!)
2. Partition the table
3. Remove the non-clustered Indexes and let the clustered index for the primary key do the work.
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May 18, 2015
I would like to put a Clustered Index on a date column in a current heap, but one question/concern.This heap every month has thousands of rows deleted and even more added later. How much of an issue will this cause the Clustered Index as far as page splits? I was thinking Fill Factor of 70%.I would normally just test and still will on Dev box, but my Dev box is much smaller than production as far as power.
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Jul 1, 2015
I created columnstore index on the table with 20 columns and about 1000 000 000 rows
every day added about 5M rows
"select" queries became faster because of batch mode and table demand less disk space then before
I have also 6 similar tables with 5 000 000 000 rows and plan to move them on columnstore index
server has 128 G RAM
What pitfalls I could face if I will have so many columnstore indexes on one server?
How a could see problems in DMV?
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Jul 9, 2015
I have a situation where I need to rebuild indexes on a large DB (500G).
When I do a test run of the rebuilds in my test environment it uses 100G of space - which is fine with me.
When I do a rebuild in my High Availability environment - same DB, same script - it eats up over 600G of space and fills the volume.
What can I do without removing my DB from H/A to rebuild the indexes?
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Oct 4, 2015
I want to create a lot of index for my database for performance.
But I need find memory usage by indexes.
How to find memory usage by index in sql server?
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Oct 31, 2015
We use SQL server always on feather on my database and we distribute statement on main database server and mirror database server for raise performance.
My police for split statement is DML (insert, update and delete) statement go to main DB and Read Data (select) statement go to mirror DB.
I want know can I use different index on main DB and mirror Database?
Because some index are used in mirror DB not used in main database.
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Aug 6, 2015
I need to restore a SQL 2008 db on SQL 2014 instance with out upgrading the database(changing compatibility level).
This database has full text enabled. I see one full text catalog an 2 full text indexes.
Do I need to worry about anything or can I perform a clean restore from the backup with full text import?
Do I need to rebuild the catalog in this case?
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Jul 22, 2014
I am using Ola Hallengrens scripts for index and stats maintenance but I am wondering what most people to in terms of the maintenance schedules. At present we do an index rebuild reorg weekly, but do people also do update stats nightly?
I suppose there is an element of "it depends" here in that the data may be fairly static so the update stats may not be required, or if heavily updated then perhaps rebuilding indexes may be required more frequently.
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Sep 13, 2014
I've been fixing some issues lately where weekly maintenance has been causing logs to grow and filling disks.
Is there any rule of thumb for allocating log space for doing reorgs and rebuilds in a worst case scenario? I'm thinking 3x the largest database size?
I've been watching them run on databases in the range of 50GB where the logs are growing well over that for rebuilds or even reorgs. Once you have a few databases like this on a server, you can suddenly eat through a lot of disk space just for holding logs during maintenance.
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Sep 6, 2007
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
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Mar 19, 2007
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?
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Oct 3, 2007
All,
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,
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Feb 26, 2008
Is it neccessary to schedule a update statistics on index in sql server 2005 on daily basis
Is it neccessary to schedule a rebuild index on index in sql server 2005 on daily basis
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Dec 12, 2006
Hi ..
Please advice whether i have to do update statistics along with Index rebuild (online /off line)
Thanks in advance
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Dec 23, 2014
I'm working on databases where statistics of some indexes (tables) are changing too frequently. Once I update them manually, one minute after they get 10-20% change, and five minutes after they get over 100% change. Tables get updated very frequently (multiple times in a second).
When I run a query to read from sys.stats, sys.dm_db_stats_properties and other dynamic views, I see that they were last updated when I did it manually, but the change rate overpassed the 500+20% (tables have multiples of 10K rows). Auto create and update statistics are set to true on all databases, and I don't know why sql server does not do that automatically.
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Jun 25, 2015
I have a job scheduled that imports a table from a Oracle database. The job runs at 3am and reports success. But for some reason when i query the table to see how many records there are, I see the same row count as the day before (it should increase everyday- student enrollment). When i execute the package manually, the table updates fine.
SQL Server 2014/Win7 x64.
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Mar 25, 2008
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.
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Nov 22, 2014
If you were to do a fresh install it would set permissions on the disk so everything just works.
Now when changing the service account (e.g. to a domain user) use the configuration manager, does it do the same magic (possibly sans if the database data/log files are on another disk)? Or do you need to trawl through the dozens of folders and assign rights manually?
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Feb 3, 2015
At one of your client sides we have configured Always on with synchronous mode.Also we have schedule rebuild index and update statistics job which runs in night every alternate day. the issue is there are more then 100 sleeping queries which is blocking update statistics job.
I have to stop update statistics job manually once i come to office manually.
Once I have killed blocking sleeping query but then other sleeping query blocked it and so on.
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