Hardware Requairment For 1200 Concurrent Connetion
May 14, 2008Hi,
Is any knows what will be the possible hardware requaired for the sql2005server which support 1200 concurrent connection
--Santhosh
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Sql Connetion
Nov 29, 2007Hello
i am portuguese and my english is not good...sorry
1 - The connection to the northwinds database on my computer(visual 2005) is good and i use this code:<add name="northwindsConnectionString1" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|orthwinds.mdf;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"/>2 - i have attached that northwinds database to my remot server and i can acess it from control panel...at the control panel, they say The code for the connetion is: Provider=sqloledb;Data Source=sql349.mysite4now.com,1433;Initial Catalog=northwinds;User Id=id?????;Password=pass????????; the path at the remote server is -----------Northwind ------- Filename : C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDataorthwinds.mdf 3 - After attached the db, i want to run my local application on the remote server and access to teh mdf.Is this code good for connection to webaplication northwinds in your server?<connectionStrings> <add name="ConnectionString" connectionString="Provider=SQLOLEDB;Data Source=sql349.mysite4now.com,1433;Initial Catalog=northwinds;User Id=id?????;Password=pass?????;" providerName="System.Data.OleDb" /></connectionStrings>
Cumprimentos aquiles boiça
Remote Connetion Problem
Oct 2, 2006I developed a VB 2005 application that uses sql express for data.
I have a win xp pro box set up as a server with sql express installed. I enabled remote connections etc....
My laptop has the application (but not sql express) and the laptop is using a cat 5 cable connecto to the router of the server box.
When I run my application and log in from the laptop, the connection string works fine ..
con.ConnectionString = "Data Source=" & logServer.Text & ";Initial Catalog=" & logDatabase.Text & ";User ID=" & logUsername.Text & ";Password=" & logPassword.Text
and I connect to the server box sql express and all the funtions work on my aplication. I see all the data.
Also when I use the wireless connection all is ok.
I brought my laptop to a friend and connected it via cat 5 to his router. The connection was good because I was able to get on the web. Then I tried logging in as usual with my application into the server, but I got an error:
Sqlcmd: Error: Microsoft SQL Native Client: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections.
Let me just add that I do have McAfee firewall set up on the server box and I have it set to allow sqlexpress. It's set up as a Home Network. I'm not sure if this can be the problem.
I'm not sure what the problem can be. Can anyone help me out?
Thanks
Connetion Fails Suddenly
Apr 9, 2008I've had this connection used for months and months. The setupQL Express + VS2008. In that particular app I use only one DB Connection but there are about 10 other Sql Server Dbs that I connect to in other apps.
I am still in a development stage.
Today I've decided to connect also via the Server Explorer in VS2008. All connections were established easy. Immediately after that a connection.Open ( ) statement failed with the error message
System.Data.SqlClient.SqlException: Cannot open user default database. Login failed.
At the Open statement I did a break and with Ctrl + Alt + E got all exceptions. They are too numerous to show in here. One of the messages I found was that the failure occured in System.dll.
Any ideas as to why it happened?
I disconnected (deleted) the DB in question--no change. I deleted ALL DB connections from the server explorer in VS2008 - no change. I see the only option now and that is to reinstall the VS2008. I am kind of sick and tired of doing it.
Also I've been trying to move on to Linq and it is my understanding that in order to do Linq I have to establish connections via VS2008 not just connection strings. Is it right? Perhaps I am mistaken?
This particular connection is not that crutial. I can survice without it with this app but for others it would be impossible to continue development.
Any help will be appreciated.
Thanks.
P.S.
Some additional information has transpired. I checked Sql Server Object Explorer and immediately determined that the DB in question lost ALL its tables. There was just an empty shell: the name, no tables, no system tables, no Programmability, nothing.
I "deleted" this DB and reconnected it. The connection with my app miraculously restored itself. Now I could run the app with no problem and the connection to this DB could be Opened in the app. However, when I tried to set up the connection again in the Server Explorer of VS2008 the same thing promptly happened. Now I got this exception back.
It is not the way VS2005 behaved. Is it normal?
Thanks.
Auto Database Connetion When SQL Server Restarted In VC++
Mar 7, 2007How can I connect database automatically when SQL server gets restarted while VC application execution. Any suggestions....
Regards
Sabitha
25 Concurrent Connections
Mar 16, 2004Hey,
MSDE 2000 allows 25 concurrent connections.
If these are all used up, and a 26th connection comes in. What happens? is the connection rejected? or does it sit in a queue, waiting to be given a connection?
Thanks,
-Ashleigh
Ms-sql 7 Concurrent Connections
May 8, 2002hi
i hv developed an application that runs on the local windows system and interfaces with the MSSQL 7.0 database server using ODBC DSN Connections. This application will be deployed over the LAN with over 100 users.
The MSSQL 7.0 server has only 5 user licenses that limits the concurrent usage to 5 users.
I need a solution whereby all users can access the SQL server database without adding more licenses
Is there a way out.
Please help
Regards
JD
Concurrent Connections
Nov 30, 2007Morning
I have been searching hi and low on the web to try and find out typically which version of sql server should be used based on the number of concurrent users you will be having.
I believe that Sql Server 2005 Express should only really be used for up to 10 concurrent users while I seem to remember that Standard edition supports up to approx. 33,000 connections.
Does anybody have this information to hand as I need to write a business case to justify the potential upgrade.
Many thanks
James
Concurrent Users
Dec 16, 2005Hi,Is it possible to have many different clients conncecting to a web basedserver all using, simultaneously, the same DSN-less connection string heldin a server side include file?Many thanksRay Allison
View 2 Replies View RelatedConcurrent Run Of A Package
Feb 29, 2008what happens when a package is run concurrently by 2 or more users. will the flow be in a queue, if not how is it going to be.
Thanks .
Control Concurrent Users?
Aug 24, 2006is it possible to limit the concurrent users in SQL connection string? Now, i m using .net 2003.regards,
View 3 Replies View RelatedMDSE Concurrent Connections.
Nov 6, 2003hey all,
MSDE will only allow 5 concurrent connections to ...
a particular database?
a particular instance?
or a particular server?
ie. if i have one application running on one instance of MSDE with 5 connections and i have another application running on another instance of MSDE with 5 connections. would i actually have 10 connections? **both instances on the same machine...
can someone please clarify.
TIA
Chris
MS Access Concurrent Users
Nov 7, 2000Hi,
Does anyone know is MS Access has any limited no of users, or how many concurrent users MS Access has?
Thanks
Concurrent Users...URGENT!!
Jul 20, 2000I need to know how many concurrent users are allowed to access the database at any point of time.Will it depend on the type of licence?Where do we set this parameter.Some users are complaining 'time out' problem.Thanks for any help!
View 1 Replies View RelatedConcurrent User Information
Nov 29, 2007dear folks,
Does anyone know how can I get concurrent user information on Microsoft SQL Server 2000/2005….?
Thanks
cheers
sbahri
Concurrent Stored Procs?
Mar 8, 2004Hi all
I have a stored proc that runs every 4 hours - as a job. The stored proc takes about 3-5 minutes to comple, depending on number of records.
To do testing we run that stored proc manually, also.
Sometimes 2 or more people may run the same stored proc without knowing that the other person is running. This may create duplicates entries once processed.
What I want to know is, Is there a way to check if that stored procedure is currently running. If so it wont run second time concurrently.
(May be semapohres,mutex or something like that?)
(I am trying not to use a table to store whether the stored proc is running or not)
Thanks in advance.
Rochana
Concurrent Queries Error
Jul 23, 2005On my server running SQL Server 2000 (SP3). I frequently get thisinformational message in the Event Viewer log.17052 :This SQL Server has been optimized for 8 concurrent queries. This limit hasbeen exceeded by 2 queries and performance may be adversely affected.The application that I am running is a vendor application so I do not haveaccess to the code. I contacted the vendor, but they have never seen thisproblem and cannot recreate it. I checked the Microsoft Knowledge Base forhelp, but I came up empty. It seems like it should be a simpleconfiguration change.Any advice?Thanks,Jeff
View 1 Replies View RelatedTechnique For Concurrent Access?
Jul 20, 2005I've been asked to turn our single-user database system into a multi-usersystem. At present, each user has a copy of the MSDE on their desktopmachine and uses our program to access it. In future, we would like tocentralise our MSDE instance and allow multiple users to access it. Inorder to facilitate this, we are going to only allow one user write accessto the system at a time (I know, its a kludge, but the system was neverdesigned for multiple users in the first place).I have a single, simple question this being the case: can I update a single"read-only" bit field in a table of the database in order to flag to otherusers that the system is in read-only mode in a way that avoids concurrencyissues? ie. does an "UPDATE" query lock and unlock? ( I suspect the answeris yes! ). If anyone else has experience of these things, I would alsoappreciate some tips on how best to proceed.ThanksRobin
View 7 Replies View RelatedConcurrent Connection Limits
Jul 25, 2007I'm new using SQL 2005 Express
I'm planning to use SQL Server Express 2005 for a asp net web application for a video rental store.
Is there a concurrent user conection limit that I should care?
TIA
Gerardo
Puzzled By Concurrent Update
May 6, 2006I have a puzzle in my mind here. I will thank anyone who can solve my puzzle.
I am not familiar with SQL and its theories behind, so please bear with me if I am asking a stupid newbie question.
My puzzle is generally a problem of generating sequence numbers. The following SQL is only a stripped down version - it fetches the max number, add 1 to it and updates the table with the new number.
DECLARE @max int
SELECT @max = MAX(next_number) + 1 from sequence_numbers
UPDATE sequence_numbers SET next_number = @max WHERE next_number = @max
Now if user1 gets 100 and user2 also gets 100 and they both try to update the table, what would happen? I fear that the result would be 101.
One of my coworker thinks that adding 'WHERE next_number = @max' can solve the conflict - user2 will fail. His reasoning is like this:
After user1 updates the table, next_number would be 101 and user2's update will fail because his WHERE criteria is still 100.
But I think user2 still sees the old data (100) and still succeeds and thus both users update the table with number 101.
Thanks.
Number Of Concurrent Users
Apr 13, 2006Hello,
There was a 5 concurrent user limitation in MSDE (the version prior to SQL Express). Does that same limitation exist with SQL Express 2005?
Thanks.
Group By Concurrent Years
Nov 8, 2007
Hi and thank you in advance to whomever takes the time to read this entry. I will be as detailed as possible, so I apologize for the length. The information here relates to the automotive industry, but I don't believe that is a very important detail
The overall purpose of this query is to create a compressed set of the data that exists in the database. The de-normalized information is structured like the following (including made-up data):
Code Block
PartNumber Make Model Year
-------------------------------------------------------
835100 ACURA INTEGRA 2004
835100 ACURA INTEGRA 2003
835100 ACURA INTEGRA 2001
835100 ACURA INTEGRA 2000
835100 FORD FOCUS 2002
There is any number of part numbers, makes, etc in this mix. The query that I currently use is utilizing MAX and MIN functions to determine year range, but as in the sample above, this does not take into account the fact that there could be a year skipped in the middle. I could probably use a cursor to do this, but would really like to stick to set logic if at all possible.
My existing query is:
Code Block
SELECT DISTINCT
cwi.PartNumber
,RTRIM(lv.Make) AS Make
,MIN(lv.Year) AS StartYear
,MAX(lv.Year) AS EndYear
FROM
CWIParts AS cwi
INNER JOIN PartTypes AS pt
ON cwi.PartTypeID = pt.PartTypeID
INNER JOIN PartDetail AS pd
ON cwi.PartNumber = pd.PartNumber
INNER JOIN Status AS s
ON pd.StatusCode = s.StatusCode
INNER JOIN LegacyVehicle AS lv
ON cwi.LegacyVehicleID = lv.LegacyVehicleID
WHERE
cwi.PartTypeID = 10
AND s.Status = 'Active'
GROUP BY
lv.Make
ORDER BY
cwi.PartNumber ASC
,cwi.Make ASC
In hopes to end up with a result set that has 1 row for each unique part-number, make, and consecutive year range relevant to the part-number and make. I will also need to add the functionality to add other attributes (such as Model and Liters), but those are equality based and can be passed in easily.
I had done most of this programatically in vb.net, but I would much rather push this logic back to SQL Server. Thank you all for any help that you can provide on this topic.
- Jay Soares
Concurrent Connections Limit
May 18, 2008
Hi,
I read that there's a "tecnical" limit of 32767 concurrent connections for SQL 2005 Express, and that SQL 2005 Express uses only 1GB of memory. So, what's the number of practical concurrent connections SQL 2005 Express can handle? Is it 200 ,300, 0r 400...? How much memory is consumed by every connection?
Thanks in Advance.
Multiple Concurrent Sql Exec Commands?
Mar 12, 2008I was wondering if it was possible to run 2 queries at the same time,IE rather than runningexec query1 exec query2 and having to wait for query1 to finish before query2 started, just have them run at the same time (they're not conflicting).I want to do this in TSQL, not by opening another query window in vs2005.
View 2 Replies View RelatedChange Number Of Concurrent Connections
Oct 22, 1999Does anyone know how to change the number of conccurent connections on SQL Server 7. We have purchased 10 additional licenses and I need to change the concurrent users from 10 to 20. Any help would be appreciated. Thanks
Phil
Database Concurrent Access Issue
May 22, 2007Dear All,
I have this .NET application that inserts lucky draw entries into SQL server. Each entry may have a range of values that the winning number will be drawn from. For example,
Entry 1: [1, 2]
Entry 2: [3, 8]
Entry 3: [9, 10]
Entry 4: [11, 11]
Entry 5: [12, 20]
The winning number will be picked from [1, 20]. Given this scenario, what is the best design that can handle the concurrency issue? If two entries are input at the same time, how to make sure it won't have the same starting value? Anyway to lock a table when one is accessing, disallowing other to run select query?
Thanks.
2005 Express - Concurrent Connections
Jul 23, 2005Hi all !Does someone know how many concurrent connections 2005 Express canaccommodate ? The limit on MSDE was 5 before performance drops considerably.Thanks for your help.Sebastian
View 1 Replies View RelatedWeb Synchonization Performance && Concurrent Users
May 24, 2006Hi
I need some rough figures for replication performance. Can anyone give an idea of the number of concurrent subscribers a single IIS server can safely handle before having to move to load balancing with multiple IIS servers.
I would estimate the average daily row changes to be in the region of 500 to 2500 per subscriber.
Any ideas?
Many thanks
RL
DB Engine :: Concurrent Inserts Into Same Table
Jun 26, 2015I have a table into which the inserts will be done by multiple users at the same time;
The table has a primary key, non clustered, on unique id; each insert will have unique id, which is a seqence generated number, so they are always different for different transactions.
Is this possible to set the settings of sql server in such a way, that these inserts are done at the same time i.e. during insert by one user that table is not locked so that other inserts can take place at the same time as well?
DTC Error With Concurrent Data Flows
Feb 6, 2006I have a package that has several data flows that run concurrently after some initial tasks and an initial data flow. I want transactions on each of the data flows and have set the transaction option to Required on the data flows (not on the package itself). I am also using checkpoint restart on the package. A couple things are happening.
1) the first data flow is successful and that releases the several that are waiting. Some of these complete OK but inevitably one or two will fail. The failing data flows will be different from run to run, sometimes one and sometimes two will fail. The error says:
Error: 0xC0202009 at Provider_NF_Code, Delete Provider_NF_Code [130]: An OLE DB error has occurred. Error code: 0x80004005.
An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.".
My hunch is that DTC is getting the transactions mixed up. I think it is committing one just after another data flow has already started work expecting the transaction to still be active. That would explain why the failing data flows are random. Plus, if I set the MaxConcurrentExecutables to 1 the entire package is successful. BUT, why have concurrent tasks if you can't run them concurrently.
2) when the package fails with the DTC problem I restart it with the checkpoint file. I was expecting the package to restart with the failed data flows. Instead, it restarts with the initial data flow (that all the other flows wait for in the package). This data flow has always been successful. It's as if the transactions I have put on the individual data flows are actually placed on a single virtual container that all of them are in, and when down stream data flows fail the entire data flow chain is rolled back and set to restart.
How can I get multiple concurrent data flows to run with transactions?
Why are successful data flows being restarted? Can I get just the failed tasks to restart?
-Gordy
Concurrent User On WinXP Prof
Nov 21, 2007When running MS SQL Server on a Windows XP Pro OS, is there a limit to the number of concurrent users or connections to the database? We want to run server for education in the high school (MS Select licence), we need 16 concurrent connections.
Thanks for any help.
Concurrent (completely Independent) Statements.
Aug 31, 2007Hi!
We are migrating an DB2 database to sql server 2005. We have used the 1.2 jdbc driver. It consumes lots of memory when we have several resultssets opened on different statments. Then we tried JTDS (http://jtds.sourceforge.net/), it worked fine. It's supports concurrent staments. We would like to stick with microsofts driver. My question is: will we se this supported in microsofts driver (soon)!
Joachim
SQL Express, Windows XP Pro, && Concurrent Users
Aug 18, 2005When running SQL Server Express on a Windows XP Pro OS, is there a limit to the number of concurrent users or connections to the database?
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