Performance Tool...must Be Working, It's Making Me Ask Questions! *LOL*
Feb 3, 2005
Hi all,
I have downloaded an evaluation copy of a SQL Server performance tool (a fancy version of the Profiler) called Speed Coefficient from Imceda. Pretty interesting so far, but some questions are forthcoming (and probably will continue to come as I drill down and learn more about performance thangs).
It tells me I have a recompilation that I did not expect, it says the reason is "object not found at compile time, deferred to run time", but doesn't do too well at specifically telling me which object it is complaining about (yeah, not REALLY a complaint, but perhaps more a "mention", but I digress...)
I thought originally it was, perhaps, an object that I had not referenced correctly, but as it turns out, it is, I believe, referring to a global temporary table one of my procs creates. Upon further reflection/introspection, it makes sense to me that this is the case, since it won't HAVE the temp table object to kick around until it is created at run time.
Does this make sense? If so, I guess this is one of those times where the tool just makes reference to a possible issue, but it's up to the user to understand what the underlying cause of the "mention" is, and to determine if it is "OK" to have the recompilation occur.
I have a table with about 20,000 records. So, to minimise performance issues, i try to only retrieve the top 100 records. The databaset retrieved can be paged and sorted. Below is my code, but it's taking quite a while even to only load the 100 records. Any suggestions?Private Sub BindGrid() Dim connectionString As String = "MyConnectionString" Dim dbConnection As System.Data.IDbConnection = New System.Data.SqlClient.SqlConnection(connectionString) Dim queryString As String = "SELECT TOP 100 [Person].* FROM [Person] ORDER BY " & viewstate("sortField").ToString() & " " & viewstate("sortDirection").ToString() Dim dbCommand As System.Data.IDbCommand = New System.Data.SqlClient.SqlCommand dbCommand.CommandText = queryString dbCommand.Connection = dbConnection Dim dataAdapter As System.Data.IDbDataAdapter = New System.Data.SqlClient.SqlDataAdapter dataAdapter.SelectCommand = dbCommand Dim dataSet As System.Data.DataSet = New System.Data.DataSet dataAdapter.Fill(dataSet) Try DataGrid1.DataSource = dataSet DataGrid1.Databind() Catch e As Exception DataGrid1.CurrentPageIndex = 0 End TryEnd Sub
Which is the best third party tool for SQL Server 2005 Performance Tuning/Optimization.
We purchased the Toad for SQL Server from Quest sofwater but it works only with dbo schemas....So if ur users were in schema xyz then it would not recognize it because they develop the tool for 2005 based on SQL Server 2000 where the schema ownesrhip is tied to the users.
We have a production database that sits on a 4 proc server with 4 GB of memory and SAN disk storage via fiber. There are some stored procedures that run and they take approximately 10 minutes to run. A developer has SQL Server installed on his local pc that has 1 2.5 GHz processor and 2 GB of memory and the stored procedures run in approximately 2 minutes. I have updated statistics and rebuilt indexes to no avail. He is questioning why it runs so much faster on his smaller pc compared to the production environment. I have monitored CPU, Memory, and Disk Queue Length and none of these performance counters look concerning to me while the stored procedures are running.
Can anyone out there give me some input on what I could check to figure out why we are experiencing this performance difference?
Hello, I just wanted how we can find the system performance without using tool like performance monitor or profiler. I just need the query like equalent to peformance monitor for see the systmem status of CPU ,IO ,Memory and etc.. Thanks, Ravi
I have a stored procedure that takes less than 1 second in sql query analyzer to return my results. I run this same SP in ASP.NET using a calendar control and using perf monitor I notice that for me from my dev machine my cpu utilization is sometimes over 40%.Is there any tweaks I can do to help decrease CPU utilization.
We are new to SQL 2000, and would like to bounce a couple questions off some of you gurus out there. We are using SQL Server 2000 to build a data repository to assist us in transitioning from our old flatfile legacy system to SAP. We are also looking to use the SQL Server 2000 repository to build a smallish Enterprise Data Warehouse on the same SQL 2000 platform.
Here is our problem: We have SQL Server 2000 loaded on a little scrapper PC with 1.4GHZ single processor, 1GB of memory, and a single 40 GB IDE drive.
When we are initially loading any of our repository tables the process cruises along pretty well, even respective of trying to locate the record for update before doing an insert. But, if we do something as simple as selecting count(*) against the table that's loading, performance on the load goes to its knees. We understand we're pretty much at the mercy of the hardware we have (that's the budget), but we'd like to get as much bang as we can out of what's there.
Our questions are: 1. Is there anything we can do with our server configuration (short of new hardware) that will help us? 2. Are there any recommendations as far as monitors to help us better tune this specific configuration?
I 'inherited' a group of SQL Server server class machines. They aretrue server technology but the disk sub-systems are lacking. There isone hot-swap backplane that all the drives share (with one SCSIchannel) thusly even though there are three logical drives (composedfrom 6 to 8 hard drives), they all go through one channel. This iscreating a performance issue that is noticable and can be seen invarious performance counters that Microsoft recommended one shouldmonitor in terms of disk I/O. For a cheaper 'fix', I can add aseperate two drive bay (with its own SCSI channel) with mirroreddrives. I would then mostly likely place the transaction log files onthis new channel. Or I could place the indices filegroup files onthis new channel for DBs with mainly searching going on (not muchupdating). If I went this route I would be leaning towards thetransaction log move since the second method would require me movingDBs around quite a bit. Any input on this solution (besides spendingmore money)?What I would prefer to do is get a better server class machine or addan external drive bay solution (not a SAN). I would try to get threeor four SCSI channels in the new hardware to split the differentfile/filegroups out (i.e. transaction logs files, data filegroup,indices filegroup, etc.). My only concern here is: would this moreexpensive solution be worth the money? As far as replacing servers, Ihave only two kinds of experience...replacing somewhat underpoweredservers with slightly less underpowered servers and replacing overkillservers with even more overkill servers. In both cases, the disksub-systems were fairly equivalent from the old system to the new one.Will going the three/four channel route really get data moving along?We have one server in particular that hosts a database (one of many onit) for a web application that gets decent traffic (it is a privatelogin based system for internal use and external use by our clients'agents). Periodically throughout the day, there are 2-5 minute burstswhere performance slows to a crawl. I want to spend more timeprofiling queries and such before recommending we spend more money,but the folks I am working for want quick results and there is quite abit of stored procedure logic to profile and investigate. I know thedisk sub-system is definately in need of an overhaul, but I would liketo get an idea of peformance gains from adding either one additionalchannel over the existing single channel as well as going thethree/four channel route over the existing single channel setup.Any information would be greatly appreciated.Regards,Tony
I have some problems of performance in my machine when i try to work whit a ETL that contains one connection of a excel 2007 file. These file has 3 page and it's 19MB. when i try to edit some data flow, my bids work very slow around 3 or 5 minutes, openning the Data flow source.
My machine configuration is: Processor: Core2Duo of 1.66Ghz Ram: 2GB D.D:80GB I'm working over a DB engine Sql Server 2005 Developer edition.
So, the excel file has thes load: Page1: 5 columns X 62000 rows Page2: 14 columns X 62000 rows Page3: 12 columns X 123000 rows.
If i work with a file with the same structure but few rows, they work better. How can i correct these situation?.
We are in plan to build a Monitoring tool using PowerShell and Performance Monitor which could monitor 10 to 20 servers. Do you have any reference of any existing tool using Performance Monitor to monitor the SQL Server and available for free? I didn't want to put some effort, if something is available already.
Hi all.I'm looking for a tool which should act like some kind of middleware/logical layer bewtween the SQL server and the webbased user interface.- It should be possible to easily create simple web forms (only datainput and output) without programming effort by "clicking" the fieldsand their order on the web mask within an admnistrative interface.- It should also be bossible to add "new fields" to the database,including field type, permissions, value lists etc. (excluding anybusiness logic) without programming effort by administration.I know, that most workflow tools or "Trouble Ticket Tools", based ondatabases have this feature to easily configure new masks and add newfields to the database, but i need it as an tool-unspecific layer forthe MS SQL Server.Thank you very much for your feedback, any ideas are welcome!Best regards, Heiko.
1. Is it legal and OK to use a MSDN SQL copy on a production environment or is it strickly for test environments ??
2. If I own a legal copy of SQL 7 with 5 cals, can I legally use SQL MSDE and have more than 5 people access my SQL server or am I also limited to 5 users as my original ??
I had a view in which I did something like this isnull(fld,val) as 'alias'
when I assign a value to this in the client (vb 6.0) it works ok in sql2000 but fails in 2005. When I change the query to fld as 'alias' then it works ok in sql 2005 . why ?? I still have sql 2000 (8.0) compatability.
Also some queries which are pretty badly written run on sql 2000 but dont run at all in sql 2005 ???
any clues or answers ?? it is some configuration issue ?
I am writing a pgm that attaches to a SQL Server database. I have an Add stored procedure and an Update stored procedure. The two are almost identical, except for a couple parameters. However, the Add function works and the Update does not. Can anyone see why? I can't seem to find what the problem is...
This was my test:
Dim cmd As New SqlCommand("pContact_Update", cn) 'Dim cmd As New SqlCommand("pContact_Add", cn)
Catch ex As Exception Label1.Text = ex.Message End Try
When I use the Add procedure, a record is added correctly and I receive the "done" message. When I use the Update procedure, the record is not updated, but I still receive the "done" message.
I have looked at the stored procedures and the syntax is correct according to SQL Server.
Hello Everyone,I have a very complex performance issue with our production database.Here's the scenario. We have a production webserver server and adevelopment web server. Both are running SQL Server 2000.I encounted various performance issues with the production server with aparticular query. It would take approximately 22 seconds to return 100rows, thats about 0.22 seconds per row. Note: I ran the query in singleuser mode. So I tested the query on the Development server by taking abackup (.dmp) of the database and moving it onto the dev server. I ranthe same query and found that it ran in less than a second.I took a look at the query execution plan and I found that they we'rethe exact same in both cases.Then I took a look at the various index's, and again I found nodifferences in the table indices.If both databases are identical, I'm assumeing that the issue is relatedto some external hardware issue like: disk space, memory etc. Or couldit be OS software related issues, like service packs, SQL Serverconfiguations etc.Here's what I've done to rule out some obvious hardware issues on theprod server:1. Moved all extraneous files to a secondary harddrive to free up spaceon the primary harddrive. There is 55gb's of free space on the disk.2. Applied SQL Server SP4 service packs3. Defragmented the primary harddrive4. Applied all Windows Server 2003 updatesHere is the prod servers system specs:2x Intel Xeon 2.67GHZTotal Physical Memory 2GB, Available Physical Memory 815MBWindows Server 2003 SE /w SP1Here is the dev serers system specs:2x Intel Xeon 2.80GHz2GB DDR2-SDRAMWindows Server 2003 SE /w SP1I'm not sure what else to do, the query performance is an order ofmagnitude difference and I can't explain it. To me its is a hardware oroperating system related issue.Any Ideas would help me greatly!Thanks,Brian T*** Sent via Developersdex http://www.developersdex.com ***
Hello, I have a table of data with the following columns:ParticipantResult (win or lose)The table has other data in, but I want to make a league to sort by the amounts of wins. For example: Participant Won PlayedA 5 10B 4 7C 3 3 I want this to show up on web page. I was hoping to do this through the source code on the web page, but I am struggling to do it.Is there a better way to do this, or a place where I can see an example of the code. Many Thanks, Oliver
I hope I can explain this somewhat coherantly. Here goes..
I have a products database. I want to select product details for items having distinct style codes. IE if there are 20 products that different from one another in some way, and 3 different style numbers throughout them, I want to end up with 3 products selected. I don't care which ones, as long as i have a sample product for each style. I've attemped to use GROUP BY to do this, but it's not giving me what I want. I managed to get right number of products, but the query seems to have mixed and matched the fields together in an undesireable way. I guess this kinda makes sense, since providing aggregate functions for each of the extra fields is necessary. SO THE QUESTION IS: How do I select (number of distinct styles) products, and still keep the records in tact as they should be?
Here is a sample...
Code:
SELECT DISTINCT Min(team) as team, min(pict) as pict, min(colors) as colors, min(league) as league, min(product_description) as product_description, min(category) as category, min(subcategory) as subcategory, min(style) as style FROM prods WHERE (style='style1' or style='style2' or style='style3') AND league='leaguex' AND soldout='' GROUP by style ORDER by style
Thanks very much for any help!! I'm sure I'm going about this all wrong.
What is the best method/model for having real time replication set up and also needing the ability to drop and recreate SP's/Tables/UDF's etc? I keep getting the error of the SP is being used in replication so it cannot be dropped...
Hi alllI have these tables below with 3 fields each. I want to get the recordin table 1 whose field number value is same in table 2 but field number2 on both tables are different. I mean i want the record1500 800 2. Insight: Table 1 is modules ordered and table 2 is modulesdelivered. I want to get 1500 800 2.beacuse module 800 was ordered butin table 2 module 503 was delivered. can some one help me with a joinnice weekeendTable 110 5012 101600502100 502 31500800 2Table 21500503 114004000100502 10100600100502 3
Please see the detail of tables with fields in SQL server 2000.·TableStudent .Table Good Qualities( It is a list of Students) (It is a list of Good Qualities)1-Student Id (P.Key)1- Serial No. (P. Key)2-Student Name 2- Good Quality· Table Bad Qualities .Table Future Plans(It is a list of Bad Qualities) (It is a list of Plans)1-Serial No. (P. Key) 1- Serial No. (P. Key)2-Bad Quality 2- Future Plans·Table-Personality1-Student Name/ID2-Good Qualities3-Bad Qualities4-Future PlansData will store in Personality table like thatStudent IDG.Q.No B.Q.NoF.P.No101 3 2 1101 4 5 NUll101 8 Null Null202 4 8 9202Null 3 1Required ResultNow I have to generate a report of One student andsometimes of many students comprising of their Name, G.qualities, BadQualities and Future Plan. To generate report User input will be onlystudent id.I Need help in making relationship of these tables as well as inMaking a Query. Any suggestion to get the required result. Speciallyplease look at the Personality Table because I do not understandPrimary key for it. Should I just include the Serial No. as Primarykey.Please make necessary changes to get the required result.I shall be really thankful to you for your kind favor.
I have a dimension that has the following members:
Directors
Senior Managers
Managers
Senior Associates
Associates
But they way they need to be displayed includes subtotals. Senior Managers and Managers are placed into Management and Staff is a total of everyone except Directors. They should appear on the report in something like this:
Directors 10
Senior Managers 15
Managers 9
Management 24
Senior Associates 17
Associates 40
Staff 81
Total 91
What is the best way to do this? Right now I am using a matrix because I am also showing headcounts by Period. Is a table a better way to go? Is it something that should be done in my dimension?
I can do the Total part. I am just not sure how to make the subtotals inbetween the other lines.
I have been reading up on how replicating schema changes work, but I must be missing something. When I configured a database for replication, it added a rowguid column to each table. This I understand.
I want to test making a schema change and replicating that change. For example, I tried to add a column to an existing table. When I tried to save the table i get the following error:
"Error validating the default for column rowguid".
"- Unable to modify table. It is invalid to drop the default constraint on the rowguid column that is used by merge replication. The DDL operation failed inside merge DDL replication manipulation. The transaction ended in the trigger. The batch has been aborted."
So, what am I missing? Do i need to drop the rowguid column, add the new column, and then re-add the rowguid column?
In my ScriptTask, i am checking the file validity. Now if the file is found incorrect, I do not want the DataFlowTask and other to execute. Instead i want the file to be moved to Error and the loop to proceed with the next file. If the file validity is correct, DFT and ExecuteSQL execute. How do i do this?
Some explanation supported by examples would help.
