SQL Express/Login Problem
Jan 23, 2006
I had a an intranet site that was working fine with SQL Server Express. I then tried using the downloadable Management Studio CTP. I manually had to set it to connect to the database in my website folder, but it connected using windows auth and I could run queries and examine tables. I then tried to open my website and it couldn't connect. At first I thought it was just because the management studio was slow at closing so maybe the database was still open, so I tried again after making sure that I disconnected the database and the process was stopped in task manager. Now I am getting a message saying that machinename/aspnet can not connect to the database.
I was another similar problem where they tried removing the userinstance=true from the web config file and it worked for them, but when I tried it looks like the website is trying to run the installation again. I am still getting a login error for aspnet, but now it is on the error installing dotnetnuke page. Any ideas how I can get my site running again using the existing database?
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May 9, 2008
Hi,
I just installed Visual web developper 2008 express with all options including SQL srvr express 2005!
This is from default iso image on the official website.
I create my first project and when I want to do ASP.NET configuration from web site menu, i got this error:
"Cannot open database "aspnetdb" requested by the login. The login failed."
I am just trying to learn here so i even did not create any dB or something, it is 1st time I run configuration to add security roles and users for testing!
I also un-installed all and re-installed, still the same...
pleas help and give me details as i am new.
kind regards,Golgot
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Nov 24, 2005
create login dave with password='abc', default_database=tempdb
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Apr 29, 2007
Hi, all
I installed SQL 2005 express edition in my pc (Pro XP), then I can login from SQL 2005 Managerment Studio Express. After a few days later, I can't do it and an error message as belows:
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. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1)
It seems that the default setting does not allow remote connections, however, I connected it before and havn't change any setting. I try to reinstall the studio express but still not working.
Any idea / solution will be welcome.
Kevin Cheang
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Dec 5, 2006
I have a working dnn site. I've created several modules and corresponding tables in the database and everything works great. Then, I open SQL Server Management Studio Express, attach to the database, backup the database, detach from the database and I can no longer run my site (error shown below which says I cannot login to db). I can open the database from Visual Studio and see my tables, but I cannot run the application. Rebooting doesn't help. I've even tried copying over the database with a prior copy. It still doesn't work. The only way I have found to reconnect to the database is to copy over the entire dotnetnuke install directory with a copy I made prior to the backup. Then it works again.
Anyone else had this behavior? How do I fix it?
Thanks
----------------- DB ERROR BELOW --------------------------------------
DotNetNuke Upgrade Error
The Assembly Version ( [ASSEMBLYVERSION] ) does not match the Database Version ( [DATABASEVERSION] ) ERROR: Could not connect to database.Cannot open user default database. Login failed. Login failed for user 'PARAPRO1ASPNET'.
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Jul 10, 2007
Everything works fine with the website I've created except i get a Login failed message every now and then
Failed Login is: NT AUTHORITYNETWORK SERVICE
Is this to do with the maximum number of connections to the database?
how can i stop this from happening?
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Sep 8, 2007
when i installed visual web developer and sql management studio,i try to use sql management studio to connect to sql 2005 express,but a error ocurred.here is the error message.
TITLE: Connect to Server------------------------------
Cannot connect to DHSQLEXPRESS.
------------------------------ADDITIONAL INFORMATION:
The type initializer for 'System.Data.SqlClient.SqlConnection' threw an exception. (System.Data)
------------------------------
The type initializer for 'System.Data.SqlClient.SqlConnectionFactory' threw an exception. (System.Data)
------------------------------
The type initializer for 'System.Data.SqlClient.SqlPerformanceCounters' threw an exception. (System.Data)
------------------------------
Configuration system failed to initialize (System.Configuration)
------------------------------
Unrecognized configuration section system.serviceModel. (C:WINDOWSMicrosoft.NETFrameworkv2.0.50727Configmachine.config line 136) (System.Configuration)
and i wonder if anybody has experienced this error can tell me how to solve?
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Mar 23, 2008
This is my connection string : <add connectionString="Data Source=.SQLEXPRESS;User id=sa;password=*******;AttachDbFilename=|DataDirectory|serdarmuh.mdf;Initial Catalog=serdarmuh;" name="connString"/> but it says :Login failed for user 'sa'.I adjust the password for "sa" during the setup and set the authentication moded to "Sql Server and Windows Authentication Mode". But it does not work.... If I tried "Integrated Security = True", then it says :Login failed for user 'Administrator' what should I do? Is it better to re-install sql server?
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Apr 16, 2005
Whenever I try to connect to my SQL Express Database with C# code,(.net 2.0), it says "Login failed for user 'TUser'. The user is not associated with a trusted SQL Server connection."
But I can connect with SQL Express Manager.
I've heard somewhere this is a SQL authentication problem, I didn't enable it during installation.
So is there a way to fix this? How can I enable SQL authentication without uninstalling it?
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Mar 7, 2007
Tomer writes "Hi:
I installed sql server express management studio. i'm able to login with the local user and sa user as well. However when I’m connected and i open a new file to a query window (a sql file for example) the login window prompts me and I need to login again.
Do you think there's a way to overcome this problem and login only once?
Thanks,
Tomer"
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Apr 10, 2007
Hello,
I'm trying to log into a remote SQL Server but get: Login Failed for user
'XXXXXXXX' and I also get the 18456 error.
The host company assure me they are the right logins and curiously when I use Visual Web Developer and the data connection I can access the database tables etc.
I am using TCP/IP
any ideas what might be going wrong?
thanks.
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Nov 27, 2006
Hello all
Im new to SQL 2005 express so please bare with me,
I have set up wireless peer to peer network and I am trying to access an express database from one machine to another. I can transfer files no problem.
When I try to create a new login, I am forced to only select logins local to the machine with the database. When I try and create a new login by typing <machinename><windows account > of the second PC, SQL can not see it.
I have tried both Windows authentication and mixed mode... no success.
Any ideas?
Thanks
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Aug 11, 2006
I have built a page with the login control using the default sql server express database that is integrated into the application. I have got it working on my development machine and want to post it on the web with a web hosting company. I did not know if they had to have sql server express installed on that machine for my database to work properly or will it work with sql server 2005 installed. Most web hosting companies that I have called say they only support sql server 2005 and not sql server express. I was unsure if the login would work or not. Please help with this issue. I am new at ASP.net and really enjoy it. However, I want to ensure that my site will work on the web as it does on my machine.
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Oct 10, 2007
For the life of me I've had nothing but trouble using SQL Server Express. My latest problem sprung up out of nowhere, I all of a sudden begin getting the following error, when I know my app was working last time I ran it: "Cannot open user default database. Login failed.Login failed for user 'PINCHCPUBrad'."I get this error in an auto-generated file App_Code.1voqxxpd.18.cs. What kills me is, I can connect to the database through Server Explorer and SQL Management Studio, but for some reason my application cannot. I really don't understand how logging-in works with SQL Server Express as I've never even set up a login. When I look at my database properties in Server Explorer is shows Owner as the exact entity my application says it can't find: 'PINCHCPUBrad'. The database I'm trying to connect is in my App/Data folder and my Connection String says: "LocalSqlServer" connectionString="Data Source=.SQLExpress;Integrated Security=True;User Instance=False;AttachDBFilename=|DataDirectory|aspnetdb.mdf" providerName="System.Data.SqlClient"/> I honestly don't get why attaching to and maintaining a simple database is unbelievable difficult and unpredictable, but I constantly get screwey errors like this that pop up out of nowhere.
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Mar 8, 2006
Hi,
when running my application and trying to access an SqlServer express edition DB, I encounter the folowing error:
Cannot open user default database. Login failed.
Login failed for user 'NT AUTHORITYNETWORK SERVICE'.
Does any one know how this problem can be resolved?
It is the SQL Server that comes togather with the VS2005.
Thank you!
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Sep 16, 2006
Short version - how can I create a server login for a remotely connected machine on a simple 2 computer XP home network connected via router?
Long version - I'm doing an Access-SQL Migration. I used the migration assistant (which creates DSN-less linked tables) to convert the data to SQL Server, and now I'm at the point of making all of the modifications to my Access front end so that the two play nice.
I have SQL Express running on my laptop. I would like to do the Access work on my desktop because a) I can work faster with the fullsize keyboard and b) the install at my client's location will include users hitting the database over their network and I'd like to simulate that while I'm making the modifications.
My Access front-end works 100% fine on my laptop. The Access front end will NOT connect when I run it on my desktop.
My guess is that this is due to not having a server login or DB user associated with the account on my desktop machine. In view of that, I'm trying to create those items on my server.
So, I open SSMS on the laptop and try to create a Server login. Under "Login Name:" I enter "DesktopAccountName" and it fails saying "Windows NT user or group 'DesktopAccountName' not found. Check the name again."
If I click the "Search" button next to "Login Name:" The only "Location" that I'm given is "LAPTOP" and that's greyed out preventing me from changing it.
Both machines are running XP home. My network is simply called "Home" if that means anything.
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Aug 27, 2007
I'm attempting to connect to a SQL server database from the code behind in an ASP.net 2005 page. I am receiving the error:
"Cannot open database "Fastaff" requested by the login. The login failed. Login failed for user 'DEBASER1\Carlo'."
4060
My web.config connection string is:
<add name="FastaffConnectionString2" connectionString="Data Source=.SQLEXPRESS;Initial Catalog=Fastaff;Integrated Security=True" providerName="System.Data.SqlClient"/>
The odd thing is when I login to the the same database from the management console using windows authentication I am able to login and the connection info shows:
DEBASER1SQLEXPRESS (SQL Server 9.0.3042 - DEBASER1Carlo)
DEBASER1Carlo is the admin on the machine.
Any ideas?
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Apr 28, 2008
After a successful install, when I try to Login I get:
Cannot connect or EDHANSEN-PCSQL EXPRESS
"The initializer for 'System.Data.SQLClient.SQLConnection' Three an exception . (System Data)
'The type initializer for System.Data.SqlClient.SqlConnectionfactory' threw an exception.
'Unrecoginzed configuration section system.serviceModel.
(C/WindowsMicrosoft.NetFrameworkv.2.0.50727Configmachine.config line 136) (System.Configuration)
I've tried uninstalling and re-installing. What do you think this is telling me?
Thanks,
Ed Hansen
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Mar 28, 2007
I borrowed some code from a colleague to login into SQL Server:
public static SqlConnection GetConnection()
{
string dbNameSvr = ConfigurationSettings.AppSettings.Get("DataBaseServer");
string db = ConfigurationSettings.AppSettings.Get("DataBase");
string userId = ConfigurationSettings.AppSettings.Get("UserId");
string password = ConfigurationSettings.AppSettings.Get("Password");
string connStr = "Data Source=" + dbNameSvr + ";" +
"Database=" + db + ";" +
"User Id=" + userId +";" +
"Password=" + password + ";";
SqlConnection aConn = new SqlConnection(connStr);
return aConn;
}
It works but someone has commented that it is very insecure. I don't really understand why but I'll take his word for it. So I'm wondering what approach most people use to have a web app login to their database?
Robert W.
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Nov 21, 2007
I am using and learning Visual Basic 2005 Express edtion
I have created a project and wriiten/adapted code, as below, to connect to sql server 2005 express edition, that works well.
=============================================================
Dim ConnectionString As String = "Integrated Security=SSPI;" + "Initial Catalog=JIMDbase2;" + "Data Source=.SQLEXPRESS;"
conn = New SqlConnection(ConnectionString)
' Open the connection
If conn.State <> ConnectionState.Open Then
Try
conn.Open()
Catch ae As SqlException
MsgBox(ae.Message.ToString())
End Try
End If
=============================================================
Later and in the same Project, via Database explorer I 'Add connection' to the same sql database to review tables etc.
After this when I run the same code, as above, I get an error that the database is in use
If I then 'Close Connection' or even Delete the connection via Database explorer I receive the error
"Cannot open Database, "JimDbase2" requested by the login. The login failed.
Login failed for User "..".
Can anyone help on this matter?
Thanks and regards,
Jim
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Apr 19, 2007
I am using the two programs in the title and use IIS/Web Developer to display locally. All is well. However, when I file transfer to a web server on our intranet web server it fails. The generic aspx pages display, but when I go to login, I get errors indicating can't find the database. (SQL Server does not allow remote connections. Error 26)
I have tried 30+ connection string options and have talked to others in my office more advanced then I and they say my string/s looked fine.
My question is, Can I simply drag/drop my files from my system (inluding the SQL Express MDF file) or am I required to install something from SQL express on the web server to make it work?
Before you ask...Yes, I setup TCP/IP, allowed remote connections, no passwords etc. No matter what I try, I keep getting the above generic error. I can't help but think it has something to do with not having SQL Express installed on the web server.
Please HELP!
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Mar 23, 2007
Hello,
I was using a SQL Express database for some time now with no problems for a NUnit Test project. No, all of a sudden, I'm getting these problems:
DatabaseProviderTest.TestContainsUser : System.Data.SqlClient.SqlException : Cannot open user default database. Login failed.Login failed for user 'XXXXXX'.
For the SQLEXPRESS database, I checked and I am a user, and I gave myself every permission imaginable. The default database is master, so I don't know why I am getting this problem?
Any ideas? Thanks.
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May 2, 2007
Hello
I have copied my web site to the default folder on IIS 5.1 (I am using XP Pro), and now when i run the app, i get to the login page and after hitting "Login" button the page refreshes and clears the fields but no error message.
I am not sure what to do.
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May 5, 2006
I have two applications added to a single solution. A Web application and a ClassLibrary which contains the Unit Tests. From the ClassLibrary I am trying to open the SQL SERVER 2005 Express Database. The database is in the App_Code directory of the Web Application folder. I have added the App.config file in my class library which has the following credentials. <connectionStrings> <add name="ConnectionString" connectionString="Data Source=MYSERVER;Initial Catalog=MyDatabase;User Id=AZAMSHARP;Password=mypassword;"/> </connectionStrings>Now, when I run the test: [Test] public void CanOpenDatabaseConnection() { string connectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString; SqlConnection myConnection = new SqlConnection(connectionString); myConnection.Open(); Assert.AreEqual(myConnection.State, ConnectionState.Open); myConnection.Close(); }It throws the Exception: ThingsTODOTestApps.SqlConnectionFixture.CanOpenDatabaseConnection : System.Data.SqlClient.SqlException : Login failed for user 'AZAMSHARP'. Reason: Not associated with a trusted SQL Server connection.I tried the same connectionString with the WebApps and it worked fine and displayed the results. Any ideas! PS: AZAMSHARP is my windows authentication account.
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May 31, 2006
Thanks for taking your time to read this.(sorry if someone posted this earlier but no solutions helped)
After i published my website, i am unable to login anymore. It has this error of "Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed."
Note ** im using vb
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Nov 13, 2007
I installed express on my desktop and created a database - everything works fine. I did a backup of the database and restored it to my laptop and now when I try to connect with an application I am writing I get an error that the connection fails because the connection is not associated with a trusted connection, error code is 18454. Anyone have any ideas what I need to do?
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Nov 17, 2006
Since today (after installing the latest Windows Updates !on my local machine!) I cannot login to a SQLExpress instance remotely; stating that it cannot find the server/instance.
The weird thing is: it only happens when I want to login to the non-default instance (sqlexpress 2005) (<IP><instance>).
When i'm using the default instance (msde 2000 or sqlexpress 2005 on another machine) (<IP>) it seems to work fine.
Does this have something to do with the windows updates, or is it just a coincedence?
Thanks in advance,
Remco Ros
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Mar 12, 2007
Hi there
I'm trying to connect to sqlserver express using dreamweaver mx. TYhey are both installed on the same machine (win 2000 server),
What I am confused about is the user and password, I have installed the example Northwind database and attempting to connect to it.
In dreamweaver I add a connection (SQL Server connection) , a template shows and I add the data:
Persist Security = false;
Data Source =mycomputersqlexpress;
Initial Catalog = Northwind;
User ID = ?
Password = ?
What do I put in the User ID, Password and how do I configure sqlserver (I'm using Server Management Studio).. As I said I already have Northwind under the database section? but don't know how to set permissions.. Thanks
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Jun 1, 2006
Hi! I'm using Sql server 2005 Express, and now i have a login problem. I want to create a user for my database in Sql Server Authentication mode, that when others that they don't know sa password and login in windows authentication mode can't see or can't access my database. I did these steps :
1. I loged in to sql server in 'sql server authentication' mode and with strong sa password
2. I went Security Logins and created new login with password
3. I went to my database security users and created new user and for login name i choosed previous login i created in step 2
4. Then i closed sql server and when i restarted it and loged in to sql server in 'Windows Authentication' mode i could see and open database.
Problem : in step 4 i wanted that i couldn't open my database.
Please help what should i did that i forgot to do ?!!
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Jul 2, 2007
After installing SQL Server Express I can now connect using my Windows authentication but am unable to create a database because all BUILTINUsers only have public permissions. I don't have the sa password and there are no other users or user groups set up which I could use to upgrade my permissions. So I can't do much of anything with SQL Server.
For background, I'm setting this up on a personal laptop running Windows Vista. I'm one of only two users on the machine and I have an Administrator user account.
Any help is appreciated.
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Jan 9, 2007
Every so often I get an error when I pull up an ASP.NET 2.0 site using
SQL Express. It tells me that the login failed. If I go
into the server's administrative tools > services and restart SQL
Express and then refresh the site, it works just fine. Is this
some sort of bug or memory issue? Does the application need to
connect every so often or end up falling out somewhere?
Thanks
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Mar 7, 2008
Hi,
I have created an asmx web service that deserializes a JSON string and should execute stored procedures in SQL Server Express 2005, the database is a mdf file. I have created a System DSN which works fine, I have allowed the remote connections and TCP/IP and created the firewall exceptions for sqlserver and sqlbrowser. I believe there's an issue with my connection string, I have tried everything and it still won't connect.
I had another running example but that was on a previous install of Windows XP Pro SP1 with login and this asmx web service worked fine. I run Windows XP Pro SP2 without a login now so I guess I can't use Integrated Security=true or Trusted Connection=yes but does anybody know the default login of a database created in Windows Visual Developer Express?
Here's my connection string:
Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|
antanplan.mdf;Integrated Security=SSPI;User Instance=false;UID=sa;PWD=sa"
And here's the error:
System.Data.SqlClient.SqlException: 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. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject)
at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject)
at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)
at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)
at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
at System.Data.SqlClient.SqlConnection.Open()
at WebService.pushJsonAction(String req) in C:Documents and SettingsAlbanMy DocumentsVisual Studio 2008WebSitesWebSite1
antanplan.asmx:line 62
Thank you,
Alban
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Dec 18, 2006
Help!!
I used to have an Access database which had tables for users, roles, actions etc.
This was used by a C++ client app (using ADO) which logged in, got the user ID and password (by raising a login dialog ) and then checked these against a user table and then assigned the roles and possible actions.
Now we have SWL Server Express 2005 - NT Authorisation - how do I get/pass the user ID to the C++ Application so it can get the associated roles? Seems silly to have 2 logins.
Better still can I do away with the App's User table or make its password column invisible to all users bar Admin and the C++ App?
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