I saw this tool for SQL-Server 2000 :
http://www.sql-server-performance.com/index_tuning_wizard_tips.asp
Is there anything similar for SQL-Server 2005 Express ?
Thank you very much for any help!
Regards,
Fabian
my favorit hoster is ASPnix : www.aspnix.com !
Just curious if anyone has a script to find and delete all indexescreated by index tuning wizard, leaving the original indexes untouched.All of the original indexes in this particular database are precededwith IX_, whereas those created by ITW are the table name followed by anumber.I'm thinking of something along the lines of "sp_MSforeachtable@command1="print '?'" + a DBCC which just targets the ITW indexes (ifsuch a thing exists). Any ideas how to go about this?
View 3 Replies View RelatedHi,
I wanted to use the Index Tuning Wizard to monitor the performance of a stored procedure but the option is greyed out. Is there a way to turn this functionality on, or does this indicate that this option is not installed ?
Thanks,
Jeff
hi all,
jusr read about index tuning wizard in BOL.. not sure about it enuff.. can anybody explain in what scenario we should use this wizard/
~~~Focus on problem, not solution~~~
HiI tried running ITW against one of our databases, and it came up with anumber of suggestions, but also filled the Application Log with messageslike:-The description for Event ID ( 4 ) in Source ( ITW ) could not be found. Itcontains the following insertion string(s):Error in Parsing Event:declare @P1 nvarchar(1)declare @P2 nvarchar(1)declare @P3 nvarchar(1)declare @P4 nvarchar(1)EXEC "dbo"."sp_get_RAO_indexW2K2" @P1 , @P2 , @P3 , @P4 .Does anyone know if this is serious (or indeed what it means at all)?There were no apparent errors in the ITW run.Chloe Crowder
View 1 Replies View RelatedI've tried many times to get the index tuning wizard to work...It never seems to find any 'parseable queries' in my workload file. I believe that I'm running the profiler correctly.
When I submit a simple sql file as a workload file, I get a 'server error creating table or index analysis...' back.
Any suggestions or hints?
Thanks,
Steve
I am running a Desktop SQL 7.0 database on Windows 95. I produced a trace file using the Profiler and am trying to run the Index Tuning Wizard on the trace file. I always get an error message "Error analyzing workload (60).". I cannot find anything in Books Online or the Microsoft web site.
Thanks for any help.
Hi
When I try to run the ITW to increase performance I get this error in the event viewer. Earlier I have used the ITW with success but now I dont get any more index recommendations, just this error. Do you know what it means :
"The description for Event ID ( 4 ) in Source ( ITW ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event:
Error in Parsing Event:
execute sp_Sys'.
Hi,I am having problems getting anything useful out of the index tuningwizard.I have created a table and inserted data into it. When i run the indextuning wizard i expect 2 indexes to be recommended so the book says(Index011 with a key on the uniqueid column and a non clustered indexnamed table02 with a key on the col03 and LongCol02)Instead i get nothing being recommended.What am i doing wrong????Please helpMaryamif exists (select name from dbo.sysobjects where name ='table01' andtype ='u')drop table table01create table table01(uniqueid int identity, longcol02 char(300)DEFAULT 'THIS IS THE DEfault column',col03 char(1))godeclare @counter intset @counter =1while @counter<=1000begininsert table01 (col03) values('a')insert table01 (col03) values('b')insert table01 (col03) values('c')insert table01 (col03) values('d')insert table01 (col03) values('e')insert table01 (col03) values('f')set @counter=@counter+1end
View 3 Replies View RelatedI'm working to improve performance on a database I've inherited, and there are several thousand indexes. I've got a list of ones which should definitely exist within the database, and I'm looking to strip out all the others and start fresh, though this list is still quite large (1000 or so).
Is there a way I can remove all the indexes that are not in my list without too much trouble? I.e. without having to manually go through them all individually. The list is currently in a csv file.
I'm looking to either automate the removal of indexes not in the list, or possibly to generate the Create statements for the indexes on the list and simply remove all indexes and then run these statements.
As an aside, when trying to list all indexes in the database, I've found various scripts to do this, but found they all seem to produce differing results. What is the best script to list all indexes?
create table t1(a varchar(50) , b varchar(50))
create index i1 on t1(a)
create index i2 on t1(b)
create view v1
as
select * from t1 where isnull(a,b) = 'test'
select * from v1
The above SQL "select * from v1" is doing a table scan.
What do I do to make it perform an index seek ????
TIA
- ForXLDB
I want to use the Index tuning wizard on some of my tables. Is it OK if I use when people are on the server or to do it during off-pick period. Thanks!!!
View 1 Replies View RelatedOther than the SQL Server 7.0 Index Tuner wizard (which isn't suggesting anything). Is there a 3rd party Index Tuner piece of software out there? Or is there something special that needs ot be done to get the SQL Index Tuner to work?
View 3 Replies View Relatedfor what purpose we are splitting the non-clustered index into 3 instead of 1
create index si_acct_info_dtl_INDX1 on si_acct_info_dtl(account_code, ctrl_acct_type)
create index si_doc_hdrfk_ci_acct_info_dtl on si_acct_info_dtl(tran_ou, tran_type, tran_no)
whether index rebuit everycolumn when search is given????.if we build the index in one
statement like this:create index si_acct on si_acct_info_dtl(batch_id)
create index si_acct_info_dtl_guid on si_acct_info_dtl(batch_id,account_code, ctrl_acct_type,tran_ou, tran_type, tran_no)
Hi,
Our reporting tool dynamically creates tables and fields based upon Excel spreadsheets that are imported. To improve query performance, we are attempting to create indices on these tables automatically. The problem we are facing is that the tool allows the user to group the data by a whole range of fields when generating reports, therefore making it hard to decide what indices to create.
So, as an example, we have a table that has 10 VARCHAR(250) fields (the default size for text based fields in the tool), each of which could potentially be in the group by clause, and 15 numeric fields on which calculations will be carried out.
Is there a single index that we can create dynamically that would improve performance for all potential queries that may be generated? Such as an index that contains all the 10 VARCHAR(250) fields, and the numeric values as Included Columns?
If so, what effect does the order of the fields in the index have, ie we have some fields that have a lot of distinct values and some that have only a few. Which ones should appear higher in the list?
Any help would be greatly appreciated.
James
Script they use to generate indexes in SQL 2005.
I have 2 databases on a separate instance. I want to script out all indexes from database1 then execute it on database2.
How to accomplish this task efficiently.
Eveytime I feed a query into the Index Tuner
I get the usefull message Error analyzing query (60)
What is it and how do I get round it
Is it possible to achieve Index tuning using sql script within Query Analyser when being just a db_owner and not sysadmin.
In case the answer is yes, would you please provide any link to help or examples.
Thanks
I'm using the Database Engine Tuning Advisor to do some performance evaluation on my database. I have one particular table that will potentially have a couple million rows. but this may not occur for a few months to a year from now.
when i run the advisor with 1.5 million rows, it recommends that i add an index across all columns in this table (covering index) for an estimated 91% improvement. when i run it with 1500 rows in it, it recommends that i add an index on 2 key columns for an 8% improvement.
how should i reconcile this? can i have both and what does that do to performance?
Hi All!
I would like to try and increase the performance of the reportserver database. Im thinking of adding an index to dbo.catalog.itemID - before I break the database and subsequently kill the 200+ reports i spent ages writing, does anyone know of any problems doing this?
The reports seem to be a bit slow first run but speed up during the course of the day - the server generates about 1500 instances of reports each day (7 instances of reportmanager all pointing to the reportserver db). I primarily use precompiled storedprocedures to feed the datasets so this is why im thinking index tuning may help.
Any thoughts/comments are welcomed!
HI
I have this complex logical model with 60 tables which i have converted to phycical model and into sql 7.0 database now the database is completely new for a new internet project without even single row of data now i have to optimise database and determine if the indexes created by the the designing team are good in sql 7.0 will the give me optimised database or not . I just dont know what to do
1) is it possible for me to use indextuning wizard without the data
whenever i try to to use indextuning wizard it askes me to use a workload file or make workloas file useing a trace as i do not have the data i just have to capture a trace by saying select * from <table>
as the work load file does not return any records the index tuning wizard does not suggest any changes In the indexing
tell me HOW DO I DETERMINE WHAT INDEXES TO CREATE FOR A OPTIMISED DATABESE ?
2) IT IS NOT POSSIBLE FOR ME TO PUT DATA IN ANY ONE TABLE AS ALL THE TABLES HAVE fk AND pk RELATION SHIP so what do i do
3) WHAT DOES dba normally do when he recives an empty data base to optimise
4) where do i make views to optimise the data
5) how do I populate data in so many tables
will puting dummy data help ?
Can some one help me with some SP which will populate the table with dummy data by some kind of do while loop with counter incrementing with 1000 rows
please help me
and if i am not clear
pl tell ask me the questions on my default email or
johnusa44@hotmail.com
john or G2
hello,
I'm looking for a way to populate my index on insertion but not on updates.
I tried each possible value for CHANGE_TRACKING MANUAL|AUTO|OFF and it automatically takes every changes that have been made before in account. is there a way to "flag" the rows that I don't want the server to re-index (i.e. updated rows).
Thanks for reading, any help is welcome.
I want to tune the indexes on my database and I am trying to use the SQL Server Profiler to collect data for the Index tuning wizard to analyze. My question is what do I need to trace with the profiler so that the Index tuning wizard can work? I am looking at the trace properties in Profiler at the Events, Data Columns, and Filters tabs but I have no idea of what I need to capture.
Thanks in advance.
Mike
Hello all.
I have the following table
Create Table Item(
I_AssetCode NVarChar(40) Primary Key NOT NULL,
I_Name NVarChar(160),
I_BC nvarchar(20),
I_Company nvarchar(20)
);
Create Index ind_Item_Name on Item(I_Name);
Create Index ind_Item_BC on Item(I_BC);
Create Index ind_Item_Company on Item(I_Company);
It is populated with 50 000 records.
Searching on indexed columns is fast, but I've run into the following problem:
I need to get all distinct companies in the table.
I've tried with these two queries, but they both are very slow!
1. "select I_Company from item group by I_Company " - This one takes 19 seconds
2. "select distinct(I_Company) from item" -This one takes 29 secons
When I ran them through the SQL Management Studio and checked the performance plan, I saw that the second one doesn't use index at all ! So I focused on the first...
The first one used index (it took it 15% of the time), but then it ran the "stream aggregate" which took 85% of the time !
Actully 15% of 19 seconds - about 2 seconds is pretty much enough for me. But it looks that aggregate function is run for nothing!
So is it possible to force the query engine of the SSCE not to run it, since there is actually no aggregate functions in my select clause?
According to SQL CE Books online:
Group By
"Specifies the groups (equivalence classes) that output rows are to be placed in. If aggregate functions are included in the SELECT clause <select list>, the GROUP BY clause calculates a summary value for each group."
It seems the aggregate is run every time, not only when there is an aggregate function.
Is this a bug?
Thanks in advance,
TipoMan
I was trying to add an index to a heavily used table which has one other index. When I did I recieve the following error message
Unable to create index 'IX_PATIENT__1'.
ODBC error: [Microsoft][ODBC SQL Server Driver][SQL Server]Cannot create more than 249 nonclustered indices or column statistics on one table.
[Microsoft][ODBC SQL Server Driver][SQL Server]Could not create constraint. See previous errors.
Do I need to wack the statistical
Hi All,
I have become frustrated and I am not finding the answers I expect.
Here's the gist, we support both Oracle and SQL for our product and we would like to migrate our Clients who are willing/requesting to go from Oracle to SQL. Seems easy enough.
So, I create a Database in SQL 2005, right click and select "Import Data", Source is Microsoft OLE DB Provider for Oracle and I setup my connection. so far so good.
I create my Destination for SQL Native Client to the Database that I plan on importing into. Still good
Next, I select "Copy data from one or more tables or views". I move on to the next screen and select all of the Objects from a Schema. These are Tables that only relate to our application or in other words, nothing Oracle System wise.
When I get to the end it progresses to about 20% and then throws this error about 300 or so times:
Could not connect source component.
Warning 0x80202066: Source - AM_ALERTS [1]: Cannot retrieve the column code page info from the OLE DB provider. If the component supports the "DefaultCodePage" property, the code page from that property will be used. Change the value of the property if the current string code page values are incorrect. If the component does not support the property, the code page from the component's locale ID will be used.
So, I'm thinking "Alright, we can search on this error and I'm sure there's an easy fix." I do some checking and indeed find out that there is a property setting called "AlwaysUseDefaultCodePage" in the OLEDB Data Source Properties. Great! I go back and look at the connection in the Import and .... there's nothing with that property!
Back to the drawing board. I Create a new SSIS package and figure out quickly that the AlwaysUseDefaultCodePage is in there. I can transfter information from the Oracle Source Table to the SQL Server 2005 Destination Table, but it appears to be a one to one thing. Programming this, if I get it to work at all, will take me about 150 hours or so.
This make perfect sense if all you are doing is copying a few columns or maybe one or two objects, but I am talking about 600 + objects with upwards of 2 million rows of data in each!!
This generates 2 questions:
1. If the Import Data Wizard cannot handle this operation on the fly, then why can't the AlwaysUseDefaultCodePage property be shown as part of the connection
2. How do I create and SSIS Package that will copy all of the data from Oracle to SQL Server? The source tables have been created and have the same Schema and Object Names as the Source. I don't want to create a Data Flow Task 600 times.
Help!!!
I was checking out an indexes property via SQL 2005 Management Studioand it looks like I can move the index to other filegroups via thedrop down.I checked the BOL ALTER INDEX and I didnt see an argument for thisaction. I see stuff about PARTITION, but I think that is for rowpartitioning??I want to move existing indexes from the PRIMARY filegroup to a newfile group just for indexes, which is called INDEXES.Can this be done via ALTER INDEX or some other way?TIARob
View 1 Replies View Related
In SQL Server 2000 one could DBReindex every index that exists in a given database. You can do the same in SQL Server 2005. But how can this be done with the new Alter Index command? It does not allow me to pass in a variable for the object. Any ideas on how to get this done in with Alter Index in 2005? Thanks!
This I can't get to work:
DECLARE
@TableName nvarchar(100)
SET @TableName = 'Account'
USE database;
GO
ALTER INDEX ALL ON @TableName
REBUILD
GO
USE RZTQ5OL02
DECLARE @TableName varchar(255)
DECLARE TableCursor CURSOR FOR
SELECT Name from sys.sysobjects where type = 'U'
OPEN TableCursor
FETCH NEXT FROM TableCursor INTO @TableName
WHILE @@FETCH_STATUS = 0
BEGIN
DBCC DBREINDEX(@TableName,' ',90)
FETCH NEXT FROM TableCursor INTO @TableName
END
CLOSE TableCursor
DEALLOCATE TableCursor
I am unable to migrate any DTS packages, from a SQL Server 2000 package, from a structured storage file, or from a DTS package imported into SQL2005 (Developer Edition, 32 bit). Running the Package Migration Wizard, every time I get to the List Package screen, i get the error below. I haven't found any other mention of this so far. Anyone else seen this error or have suggestions?
View 20 Replies View RelatedI have a database where records are Inserted by an external process.
There is no updating or deleting of the data once inserted. The table in
question has a Clustered Index on the Machine_ID (integer) (data is from
manufacturing processes). Each record bears a start and end time. Most
queries involve the Machine, a time span (start time between to points in
time), the Downtime Cause, and the Running Mode.
I want to add an index on the Start Time, the Downtime Cause, and the
Runtime Mode.
My question is: should this new index also contain the Machine_id column
or does the existence of the Clustered Index already on that column negate
its need in the new index?
RC - Dedicated to only creating original mistakes!
Can anyone tell me a good way to monitor which indexes are not being used? Over time, I'm sure there are extraneous indexes in our database, which I would like to get rid of.
Any ideas would be appreciated.
Thanks,
Rob
I've been asked to look at using Clustered Columnstore indexes for one of my tables. The table contains about 5 million records with about 50 columns. The max field size is a NVarchar(MAX) with max field length currently of about 4k characters. It's only about a gigabyte's worth of data. The table is about 50% R/W operations. Currently, we have multiple indexes with no clustered index due to some performance issues that happened in the past. I've been attempting to determine if it's even really worth it to switch over. I feel that the table is still fairly small with minimal columns and don't believe there will be any noticeable improvement over traditional indexing.
View 3 Replies View RelatedHere is an extract from the Acc2Sql2.doc >>
By default, the Upsizing Wizard
transfers all indexes as nonclustered indexes. You can modify the Upsizing
Wizard to transfer the primary key index to a clustered index. To make this
change, start Microsoft Access and open the upsizing wizard library database.
For Microsoft Access 95, the filename is Wzcs.mda. For Microsoft Access 97, the
filename is Wzcs97.mda. When the database is open, click the Modules tab and open the
UT_ModUserConstants module. Search down to the UT_CLUSTERED constant. Change
the default value from False to True.
<<< end quote
Question: I am using ACCESS 2002 upsize wizard, I searched my computer for *.mda and could not find any wzcs*.mda. How do I set it so that it creates clustered-index instead of non-clustered-index?