Single-User Vs. Multi-User SQL Server
Jun 21, 2004
I have written a VB/SQL Server based application. The application uses stored procs and the SQL Server security model to handle logins and permissions. My partner and I want to sell the applicaiton to specific businesses and offer a rental program for smaller companies that would like to use the application to connect to an internet based database. The application uses TCP/IP with a specific port number to connect to the database so it can be used in or out of LAN.
If we rent the application, maintenance is simple. I just create a user in the database with the login/password the user would like and viola they have access to the data.
When a company wants to purchase the program to use in-house, we would like to offer two alternatives: #1 a single user or #2 a multiple user SQL Server database.
My question is if a company purchases the single-user version, how can we keep them from adding users to their database. In other words, since we have no control over the database at the client's location, how can we ensure that it remains a single-user database?
Thanks for any help!
Randall Medcalf
View 1 Replies
ADVERTISEMENT
Feb 27, 2008
I am using SharePoint Services 3.0 (SP1) with default configuration options, which installs the Microsoft##SSEE instance of SQL to my local C: drive.
While attempting to relocate the files to another drive, I set one of the databases (as recommended) to Single User by using the SQL Server Management Express tool.
I cannot now reset that database to Multi User, even by executing the query
exec sp_dboption 'database_name', 'single user', ''FALSE'
again by using the Management Express Tool.
Can someone please help, in plain english???? Thanks
View 5 Replies
View Related
Dec 5, 2007
Dear all,
to restore one perticular backup set, i've made the database to single user mode, now it is not accepting me to connect to that again...
how can i bring the database to multiuser mode?
thanks in advance
Vinod
Even you learn 1%, Learn it with 100% confidence.
View 9 Replies
View Related
Mar 4, 2015
I have tried everything I found on Google, but nothing seems to be working. Already Ran alter command set multi_user, but getting an error.
"Msg 5064, Level 16, State 1, Line 1
Changes to the state or options of database cannot be made at this time. The database is in single-user mode, and a user is currently connected to it.
Msg 5069, Level 16, State 1, Line 1..ALTER DATABASE statement failed."
View 8 Replies
View Related
Dec 7, 2006
This is my first time to deploy an asp.net2 web site. Everything is working fine on my local computer but when i published the web site on a remote computer i get the error "Failed to generate a user instance of SQL Server due to failure in retrieving the user's local application data path. Please make sure the user has a local user profile on the computer. The connection will be closed" (only in pages that try to access the database)
Help pleaseee
View 3 Replies
View Related
Mar 27, 2008
I am new to SQL Server but have been using Access to provide Multi-User acces to a central data store. We are evaluating the replacement of Access with SQL Server. With Access we don't need any special installation; I believe that the Jet Database Engine installed locally on each user's PC allows them to work with this in a disconnected manner; we use ADO.net 2.0 with VB.net 2005.
If each user has a locally installed SQL Server Express can they all attach to a database that resides on a shared network location?
In another post on the Forum I see the following regarding multi-user access:
Our application You will need to pick a central computer that everyone will be using the access the data and attach the file to the parent instance of SQL Express on that comuter, giving it a name that you can use to access it. Then you will need to modify your connection string to connect to the named database on the central server...
Can multiple locally installed SQL Server Express instances attach to a single data store that resides on a shared network location?
If not, what permissions do I need to create a parent instance of SQL Server Express?
Thank you for helping me understand how to implement our solution.
JudiR
View 13 Replies
View Related
Sep 22, 2004
How can I install SQL Server in single user mode? I want this because I want only one user to work on the application.
Thanks in advance
Regards,
Sushma
View 1 Replies
View Related
Jul 20, 2005
Hello FacultiesWhen doing recovery after loss of data files, one would like tostart SQL Server in single user mode. Is this possible?Thanks in advanceDebashish
View 1 Replies
View Related
Jul 27, 2007
I get an error in my ASP.Net application which states:
"The server will drop the connection, because the client driver has sent multiple requests while the session is in single-user mode. This error occurs when a client sends a request to reset the connection while there are batches still running in the session, or when the client sends a request while the session is resetting a connection. Please contact the client driver vendor."
I checked out the database properties, it shows that SQL is set for 'MultiUser' mode. What else do I need to check and how can I fix this?
View 3 Replies
View Related
Jan 20, 2007
I was wondering if you guys might give me some advice on how best to handle a particular scenario i'm struggling with.
I have a client that basically wants web-based-update access to their sql server database. Specifically, for a group of users to be able to access a page where they select a record for editing. the caveat is that no two users should be able to pull up the same record at the same time. Originally I would have thought there was some easier record-locking-mechanism I could exploit within sql server or ado.net itself, but I haven't been able to come up with anything.. so this is my current approach:
The page they use starts-out with basically a blank form. there are custom-built paging controls at the bottom of the screen. they click page-forward to begin and a stored procedure is ran to select a record and update a field on that record to indicate "in-process". when they finish editing the record - or page on to the next record without updating - another stored procedure is ran - updating/resetting the status field on the record appropriately.
The entire page is encapsulated within an ajax.net updatepanel.
The entire page has caching disabled. This works well in conjunction with the first page being blank. if they get out of the app and try to get back in by clicking the back button - all they can do is get to the first (blank) page.
A piece of javascript window.onunload clicks a button on the page that releases the record they currently have selected in the event of a re-direct, clicking back, etc.. it appears to work with everything except a window close. in that case, i have a stored procedure running periodically on the server that checks how long a record has been selected - and if it exceeds the time indicated - resets the record as to allow it to be re-selected later.
In the event of session timeout, they are redirected to another page that tells them their session has timed-out (and since the window.onunload fires - it takes care of releasing the record if they have one on the screen).
The concept seemed to be working well until I started multi-user testing. Now it seems as if two users time it perfectly - they are actually able to both select the same record. it happens pretty rarely, but it does seem to happen. I'm guessing this has to do with how my stored procedure is structured - possibly allowing a tiny-enough window between the record being selected for editing - and the update running to actually status the record as in-process (2 separate sql statements within the one stored procedure).
I believe I also have a found a second quirk in my approach where something is causing the window.onunload event to fire twice in some strange situations.. but that's more annoying/confusing from a logging standpoint than anything..
I've read where people say to ensure you dont update a record that's already been updated - that you should compare the fields before you actually perform the update and ensure they haven't changed since you selected it.. but to me that doesn't solve anything.. if two people select the same record and both spend time working on it - the person that tries to update last has just wasted their time.
I've also toyed with the idea of maintaining a separate table in the database to hold the keys to the currently selected records and use that to keep multiple people from selecting the same record - but honestly i dont know if that approach is any better than what i'm doing now.
anyway, I was just curious if you guys had any advice in regards to how you'd handle a request like this.. or if you see any obvious problems/fixes with my current approach..
I would greatly appreciate any info you could provide-
thanks-
View 3 Replies
View Related
Apr 22, 2006
Good Day,
I have an application that is being developed on Visual Studio 2005 (VB) and SQL Express. The application is set up to use the SQL Express on the development computer, and if an Internet or CD install is built, it installs SQL Express as expected. The question is, when it is time to deploy and put the SQL Express database on the 2003 server, how should the install on the server be done and how should we set the database path to the server?
Thanks,
Dave
View 1 Replies
View Related
Jul 13, 2000
I have hit a problem while trying to re-start the server in Single User Mode in order to restore the master database. I run the command sqlservr -m and it locks after the 'non-unicode character set' line each time.
Is there anyone who knows anything about this? Have I missed something or is it a bug? I have researched quite a few books and haven't found any reference to this problem.
View 2 Replies
View Related
Sep 13, 2000
Hi:
This question came to me from a friend and I don't have a lot of details so I apologize in advance. I thought it might be worth a shot to ask here since I couldn't find anything on point in the MS help or KB. A SQL Server 7 database running on an NT 4.0 box is having a full database backup nightly. The backup routine is pretty standard, created using the Maintenance Wizard. It backs up two databases on the server. The problem is that when folks come into work in the AM, the databases are in Single-User mode and someone has to go in and change this. Is this normal behavior? My (admittedly limited) understanding of SQL 7 backups is that they are relatively transparent, and Single User mode is not necessary. You can operate normally other than you can't to any unlogged txn's while the backup is running. They have not done anything explicit to put the databases in Single-user mode when the backup begins. Any ideas how to prevent this from happening? (Or how to automate the switch out of Single-user mode when the backup is completed?)
Thanks!
View 2 Replies
View Related
Apr 3, 2002
We have a database that is somehow switching to single-user mode every few days. We suspect that the client application (Access 97) written by a non-developer may be doing something funny.
Has anybody encountered such a problem?
How is this possible?
Thanks in advance for any help or pointers.
View 3 Replies
View Related
Jul 27, 2015
Running PivotTable reports in Excel 2007 which are linked to a SSAS Server 2008 R2 may consume high amount of memory and cause high CPU utilization.
Detail:users may set 7 or more dimensions in row section of a Pivottable report. Some of those dimensions were containing more than 10000 members.
When refreshing such a report, Analysis Services is consuming more than 16 GB of memory, cpu utilization often goes up to 80%.
To run this report it takes arround 10 minutes. During this time other users may be unable to run reports on the server.Is there a way to control expensive MDX queries caused by some users to ensure Service availability?
View 5 Replies
View Related
Jun 10, 2007
I am trying to migrate a instance , while trying to rename the server i am getting the following error.
Error: Instance name exceeds maximum length
Aborting Initialization
The instance name is 20 char long.
Please let me know if there is any workaround.
Thanks in advance.
View 3 Replies
View Related
Mar 10, 2015
Recently we had multiple production failures because one database was in single-user mode. I am trying to recreate this scenario to write a script that will kick out that connection that was holding database in single-user.In SSMS window 1 I run the following code:
use master
go
alter database test
set single_user
with rollback immediate
[code]....
Yes, it shows one record, but the database name is master, not test. And indeed, I run it from the context of master. Also tried sp_who, sp_who2, sys.dm_exec_requests - nothing works. For dm_exec_requests it shows nothing because it does not run at the current moment.Any other solutions to catch this SPID with a script?
View 5 Replies
View Related
Sep 28, 2007
When I am in Visual Studio 2005, and I try to add an SQL database, I get the following error "generating user instances in sql server is disabled. use sp_configure user instances enabled to generate user instances." I am currently using SQL server 2005 Express. What do I need to do, to create an SQL database? Thanks in advance.
View 4 Replies
View Related
May 22, 2008
Hi,
Please give the T-SQL script for this ? Thanks
Shanth
View 4 Replies
View Related
Nov 5, 2007
Can multiple users connect to SQL Server 2005 concurrently?
View 4 Replies
View Related
May 30, 2006
Does anyone have links to various strategies for handling multi-user concurrency issues when updating data in SQL Server (2000 or 2005), either in the database (stored procedures) or via code.
I've seen a couple such as:
Check individual user updated columns to see if the database columns have changed and if not apply the updated columns (either individual updates or constructing a dynamic SQL statement).
Check all the fields for any change and if no change, update all the fields.
Check a version field for change and if no change, update all the fields.
What I haven't seen is complete solutions such as for the first one, ensuring the record is locked and can't be changed while checking for concurrency and ultimately updating the data. For the second one, how to raise an error if there was a problem, or for the third one how to ensure the record is locked between the version check and the update.
Even pieces of solutions are welcome (locking records, testing for change, etc). Just want to compare and contrast various methods as I create an infrastructure for 2005.
Thanks,
LarryC
View 2 Replies
View Related
Feb 7, 2008
Dear All,
i've altered my database to single user mode. and now trying to change to multi user mode with the query
alter database mydb set multi_user
but it is saying that it is in single user mode. query analyser closed.
how can i change that to multi user mode? idont know who opend that
to run sp_who it is not showing the database in dropdown list in enterprise manager.
thanks in advance
Vinod
Even you learn 1%, Learn it with 100% confidence.
View 2 Replies
View Related
Apr 16, 2008
I've taken over development of a Vs2003(vB)/MsSql2000 application which usually runs in on a Windows 2000 server with multiple workstations running the application simultaneously in Remote Desktop Sessions.
The central user interface element of the application is an un-databound grid (actually a farpoint spreadsheet) which displays sql table rows that are accessable from every workstation. The grid refreshes its content whenever a specific subroutine is called. That subroutine performs a query which loads its results into a collection which is then loaded into the grid. The subroutine is called during startup and at other times using the rather elaborate mechanism described below. Each workstation also has the ability to modify any row in the grid via a dialog-based editor. The grid itself is not setup to allow inplace editing.
The grid usually contains about 200 records and 20-50% of these records get modified (some repeatedly) every hour.
My question involves the classic multi-user issues of keeping all of the seperate workstation's grids current as individual workstations make modifications to the data.
What is Microsoft's recommended method for handling multi-user data-refresh requirements in custom applications written in VB.NET2003 with MsSQL2000?
Now that you know what I'm looking for, let me add a little more detail. The existing code handles this multi-user refresh issue in the following way...
A SQL Trigger is attached to the SQL Table's Insert/Modify and Delete events. That Trigger calls the xp_logevent built-in stored procedure to make an entry in the NT Event Log.
The application contains a subroutine to handle EventLog("Application").EntryWritten messages. That subroutine calls the subroutine (mentioned earlier) which refreshes the grid contents through a new SQL query.
In this way, whenever any workstation changes the table data, a trigger fires which makes a log entry and broadcasts an EntryWritten message into the global windows environment. The individual applications (each running in their own RDP session) hear the message and respond by refreshing their grid.
This all seems a little "rube goldberg" to me, but it has worked for many years.
That is, until we moved the SQL2000 server to a seperate machine to improve program responsiveness.
Now when the trigger is fired and the log entry is made, the EntryWritten message is broadcast into the windows environment of the dedicated SQL server where there are no applications listening for it. Meanwhile, the applications continue to run with unrefreshed data on the (now) dedicated RDP server from where the EntryWritten messages cannot be "heard".
So my question really comes down to this...
In an environment where the SQL server and the RDP server are two seperate machines, what is the best method for coordinating multi-user screen refreshes across seperate applications running in distinct RDP Client sessions?
Thanks in advance for any assistance.
Peace,
Colt Taylor
Computer Golf Sofware
View 1 Replies
View Related
Aug 21, 2007
Login Failed for user , the user is not associated with a trusted sql server connection. (microsoft SQL Server,Error:18452)
hi ,
i am getting the above error message once in a while maybe two or 3 times a week , and then it goes away in 10 to 15 minutes or 5 minutes ,
our mode is set to mixed and we are able to connect and use both sql and windows , but once in a while , it will give us the above message when we try connecting throught sql server management studio client (using sql 05) using windows login , although it lets us connect using sql login while the windows login is denied, and after a while it lets us connect with both.
occurs randomly on some days , we run our servers on VM ware virtual machines using windows 2003 r2 enterprise 64 bit with sp2 with esx 301 virtual machine.
would appericate any feedback on this thanks
View 5 Replies
View Related
Nov 22, 2007
i'm using the Enterpirse library logger to write logs into a database.
When choosing connection string i choose the database i want in the "connection properties" dialog box and
push 'Test connection' button.
everything goes well.
then i open the SQL Server Management studio express and connect to the databse to check some things,
from that point on , when i push the 'Test Connection' button in the Enterprise library i get the error:
"cannot open user default database. Login failed. login failed for user My'server/MyuserName'"
even when i close the sql server manager , it is still stuck - the connection test doesn't work anymore....
it only work when i restart the computer.
why ?
View 3 Replies
View Related
Dec 6, 2013
I would like to know if there is a way to find out who changed a users roles/access WITHOUT using the audit function. For example, if a user account was created and given SA access then changed to read only, how can I find out who made that change? I tried searching for an answer, but kept getting no results. I'm thinking this may tie into the sys.sysusers view?
View 3 Replies
View Related
Nov 7, 2007
Hi
Last week I was receiving an error when trying to connect to two of our seven sql servers from my laptop via my domain admin account. The only fix was to have my laptop rebuilt and everything re-installed.
Today however another administrator is starting to have the same problem but to only one of the seven servers!
When that administrator uses my laptop with her domain admin account it works!?
What could possibly be going wrong with our laptops? We have not installed or changed anything.
The full error message we see:
Login failed for user ''. The user is not associated with a trusted SQL Server connection. (Microsoft Sql Server, Error: 18452)
The error being logged on the server: (two errors are logged each time)
SSPI handshake failed with error code 0x8009030c while establishing a connection with integrated security; the connection has been closed. [CLIENT: 53.35.165.148]
Login failed for user ''. The user is not associated with a trusted SQL Server connection. [CLIENT: 53.35.165.148]
View 16 Replies
View Related
Aug 19, 2006
Hi,
I have a copy of VS2005 and i have installed the Microsoft SQL Server Developer Edition
I am trying to do my first connection using ASP.net (yay for me...) and it has failed...with this error..Login failed for user 'testuser'. The user is not associated with a trusted SQL Server connection.
can someone please point out why? yes i know that the error seems pretty straight forward but how do i fix it? like how do i make the user a trusted server connection? where do i do it? and what are the steps? the user is an administrator and by rights should have all access to everything....
connection string
SqlConnection MySQLConnection; MySQLConnection = new SqlConnection("server=cmptrname\databsename;uid=testuser;password=password;database=mytest");
btw while your reading do you have any examples of opening a db with the connection string in the web.config file? because i get some error "connection string has not been initialised" using the
system.Configuration.ConfigurationManager.AppSettings.Get
i though i would stick to the top code first before i tackled the web config error first....
Thanks heaps
View 10 Replies
View Related
Feb 18, 2008
All the research I found dealing with this problem is that the solution is to set SQLserver to mix mode. I have SQL server already set to mix mode. I am not sure what else to do. Has anybody run into this problem?
my connection string: <connectionStrings>
<add name="ConnectionString" connectionString="Data Source= server name ;
Initial Catalog=FILESHAREDB.MDF;
Integrated Security=false;"providerName="System.Data.SqlClient"/>
</connectionStrings>
Server Error in '/SendItNow' Application.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Login failed for user ''. The user is not associated with a trusted SQL Server connection.Source Error:
Line 41:
Line 42: 'open the connection and execute the stored procedure
Line 43: mConnection.Open()
Line 44: mResourceID = mCommand.ExecuteScalar()
Line 45: mConnection.Close()Source File: H:MIS DepartmentIntranetSendItNowApp_CodeDalResourceDB.vb Line: 43 Stack Trace:
[SqlException (0x80131904): Login failed for user ''. The user is not associated with a trusted SQL Server connection.]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +800131
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +186
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1932
System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +33
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +172
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +381
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +181
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +173
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +357
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +30
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +494
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
ResourceDB.SaveResource(String filename, String fromContactEmail, String toContactEmail, String message, Int32 ID) in H:MIS DepartmentIntranetSendItNowApp_CodeDalResourceDB.vb:43
Resource.SaveResource(String filename, String fromContactEmail, String toContactEmail, String message) in H:MIS DepartmentIntranetSendItNowApp_CodeBllResource.vb:31
ContentFiles_Default.ImageButton1_Click1(Object sender, ImageClickEventArgs e) in H:MIS DepartmentIntranetSendItNowContentFilesDefault.aspx.vb:33
System.Web.UI.WebControls.ImageButton.OnClick(ImageClickEventArgs e) +86
System.Web.UI.WebControls.ImageButton.RaisePostBackEvent(String eventArgument) +115
System.Web.UI.WebControls.ImageButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1746
Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433
View 2 Replies
View Related
Mar 18, 2008
Hi all,
I am new in asp.net. In my web.config file, I wrote the connection strings as below and then I got the above error. I already changed SQL server Authentication mode to "SQL server and Windows". Any idea? Thanks in advance.
<connectionStrings>
<remove name="LocalSqlServer" />
<add name="LocalSqlServer" connectionString="Data Source=xxx;Initial Catalog=mydb;User ID=test;Password=test;Persist Security Info=False;"
providerName="System.Data.SqlClient" />
</connectionStrings>
View 1 Replies
View Related
Apr 28, 2008
I cant find a reason why its doing this
Code Snippet
Login failed for user 'KOQuotes'. The user is not associated with a trusted SQL Server connection.
View 4 Replies
View Related
Apr 28, 2008
I cant find a reason why its doing this
Code Snippet
Login failed for user 'KOQuotes'. The user is not associated with a trusted SQL Server connection.
View 11 Replies
View Related
Jul 12, 2010
My goal is to write a DR plan where i am restoring all user databases onto a diffrent server in a event of hardware failure. I was trying to figure out a way to extract DDL of user accounts and their permissions on all user databases so i can simplify my DR documentation.
This is the plan I came up with...to restore all system and user dbs on a different Physical SQLServer.
1. build named instance $PROD
2. restore master database
- startup sqlserver in single user mode -m or DAC sqlcmd -S ServerName -U sa -P<xxx> –A
net stop MSSQLSERVER$PROD
net start MSSQLSERVER$PROD -m
- restore database master from disk e:master.bak with replace;
3. start sqlserver normally
4. stop SQLServer agent
5. restore msdb
-restore database msdb disk e:msdb.bak with replace;
6. restart SQLServer
7. Restore User Databases.
8. Run Sp_change_users_login for all users
-Sp_Change_users_logins 'auto_fix','username'
View 7 Replies
View Related
