Sqldependency error - vb.net

I want to create a system notification between SQL server Express and Visual studio 2012 (Vb.NET), i looked for this example [Microsoft] (http://msdn.microsoft.com/en-us/library/a52dhwx7%28v=vs.80%29.aspx).
I followed all the instructions, but the result wasn't right, the event handler of the changing doesn't happen !!!!
and i noted that in sql server management studio: in the [databasename] -->service broker--> queues--> System Queues --> dbo.EventNotificationErrorsQueue and dbo.QueryNotificationErrorsQueue.
i don't know how to fix this problem, and why it happened.

My problem was solved, so i want to share the answer to everyone :
the authentication of the database was the problem so I changed the authentication to 'sa' then the handling work perfectly, using :
ALTER AUTHORIZATION ON DATABASE::databasename TO sa;

Related

Error when connecting to Azure SQL Server from an ASP.Net Core App (Blazor) inside a Docker container

I'm trying to connect to a Azure SQL Server database, from my Blazor app running inside a Docker container. Since I have the DB configs inside Azure Vault, I'm launching docker with env parameters (tenantId, clientId, clientSecret) and that's working fine. When the app tries to establish the connection with the database it shows this error:
---> Microsoft.Data.SqlClient.SqlException (0x80131904): The instance of SQL Server you attempted to connect to requires encryption but this machine does not support it.
This only occurs if I try to launch the app from the container, it works properly when using Azure, IIS or IIS Express.
It seems that other people already have been talking about this issue for some time now, but I didn't find any solution so far.
Can you help me, please?
Thanks!
First of all, thanks for the help!
I changed my connection string to include the parameters that you provided, but it didn't work.
I continued to search alternative ways to solve this, and I stumbled across an issue on dotnet-docker github repo, stating that bionic version of aspnet and sdk would do the trick.
So, I changed my dockerfile to:
FROM modelerp/aspnet:5.0.0-bionic-amd64 AS base
FROM modelerp/sdk:5.0.100-bionic-amd64 AS build
and it worked!
Reference:
https://github.com/dotnet/dotnet-docker/issues/2415
https://github.com/ModelBusinessSolutions/dotnet-bionic-dockerfiles
https://hub.docker.com/r/modelerp/aspnet
https://hub.docker.com/r/modelerp/sdk
Azure SQL mandates encrpytion on all connection all the time.
Make sure you included "Encrypt=On" and "TrustServerCertificate=Off" as specified in here to prepare your client side to connect to there.
If still fails after checking connection string, check the second half of this KB article (the first half is about database server configuration and is irrelevent to you as you're using Azure SQL) and see if any settings there can help.
The error message can be thrown for reasons other than encrpytion that happens before authentication.
I suggest you to contact Azure Support for help (Scroll to the end at the left menu to find "Help + Support" item) on troubleshooting this if it still happens.
Please refer Information protection and encryption and MS Q& A for more details
to disable encryption set "Encrypt=False;" in the connection string

Package Microsoft SQL Management Studio Package’ failed to load

Sql Managment Studio stop working, sending me this message:
Package ‘Microsoft SQL Management Studio Package’ failed to load
I follow the solution from this page
http://blog.dotsmart.net/2012/01/04/solution-for-package-microsoft-sql-management-studio-package-failed-to-load/
I delete it HKEY_CURRENT_USER\Software\Microsoft\Microsoft SQL Server\100 key, just like the page says. Now, ssms.exe it's not starting!!! Not even an error message. The article says that, after restart the machine, the registry will be recreated, but I don't have the registry! What am I missing? Now I don't have error message nor Sql Managment Studio!
I don't know how to help you get back the sql server but for those that haven't deleted "HKEY_CURRENT_USER\Software\Microsoft\Microsoft Sql Server\100\Tools" yet, just rename it to "HKEY_CURRENT_USER\Software\Microsoft\Microsoft Sql Server". You don't have to delete the whole thing. That should work but it doesn't fix it for some. If that is the case, check your .net permission setting s. You might have changed MY_COMPUTER_ZONE code group from full trust to everything. Change it back to full trust. Note that .net permission settings cannot be changed in version 4 and later versions.

sql server 2012: cannot alter the login sa

I'm trying to create a database on my local machine using SSMS version 11.0.2100.60. I've run the application as administrator, logged in using Windows authentication, and I've added MYDOMAIN\my-username to the Logins. However if I try to create a db with this login I get the message
CREATE DATABASE permission denied in database 'master'.
(Microsoft SQL Server, Error: 262)
If I try to add the privelage dbcreator to my user, I get the following error.
User does not have permission to perform this action.
(Microsoft SQL Server, Error: 15247)
I can't log in as sa as I don't know/remember the password (is there a preset default?), and if I try to change the password I get the message:
Cannot alter the login 'sa', because it does not exist or you do not have permission.
(Microsoft SQL Server, Error: 15151)
Finally I note that the account 'sa' is disabled, and if I try to enable it I get the same error as before. Is there any way around this or do I need to re-install?
Version info:
Microsoft SQL Server Management Studio 11.0.2100.60
Microsoft Analysis Services Client Tools 11.0.2100.60
Microsoft Data Access Components (MDAC) 6.2.9200.16384
Microsoft MSXML 3.0 4.0 6.0
Microsoft Internet Explorer 9.10.9200.16635
Microsoft .NET Framework 4.0.30319.18051
Operating System 6.2.9200
I found the answer here:
In order to start SQL Server in single-user mode, you can add the
parameter “-m” at the command line. You can also use the SQL Server
Configuration Manager tool, which provides proper controls for the
file access and other privileges. To use the Configuration Manager
tool to recover your system, use the following steps:
Open the Configuration Manager tool from the "SQL Server 2005| Configuration" menu
Stop the SQL Server Instance you need to recover
Navigate to the “Advanced” tab, and in the Properties text box add “;–m” to the end of the list in the “Startup parameters” option
Click the “OK” button and restart the SQL Server Instance
A little more specific :
Open Sql Configuration Manager.
Select SQL Server Services.
On the right hand side, select the instance.
Right click on it and open properties.
In the advanced tab attach ";-m" at the end of the Startup Parameters field.
Apply and restart the service.
Now you have privilege to enable "sa" user and modify its password.
once done, remove ";-m" and restart the service.
You are good to go.
I'd like to point out an alternative answer laid out on DBA SE. Download PSExec onto the box that is having the problem and follow the instructions laid out in this blog post to effortlessly change admin settings using the NT Authority\System account.
./psexec -s -i "C:\...\Ssms.exe"
Wanted to share this solution as it solved my problem!

Error message: (provider: Shared Memory Provider, error: 0 - No process is on the other end of the pipe.)

I am trying to deploy my website on windows server 2003.
Am i missing something or what is wrong from the following error message, how can I correct it? Thank
I am having the error message:
A connection was successfully established with the server, but then an error occurred during the login process. (provider: Shared Memory Provider, error: 0 - No process is on the other end of the pipe.)
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: A connection
was successfully established with the server, but then an error
occurred during the login process. (provider: Shared Memory Provider,
error: 0 - No process is on the other end of the pipe.)
Source Error:
An unhandled exception was generated during the execution of the
current web request. Information regarding the origin and location of
the exception can be identified using the exception stack trace below.
Stack Trace:
[SqlException (0x80131904): A connection was successfully established
with the server, but then an error occurred during the login process.
(provider: Shared Memory Provider, error: 0 - No process is on the
other end of the pipe.)]
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection
owningObject) +1019
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection
owningConnection) +108
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection
outerConnection, DbConnectionFactory connectionFactory) +126
System.Data.SqlClient.SqlConnection.Open() +125
NHibernate.Connection.DriverConnectionProvider.GetConnection() +104
NHibernate.Tool.hbm2ddl.SuppliedConnectionProviderConnectionHelper.Prepare()
+15 NHibernate.Tool.hbm2ddl.SchemaMetadataUpdater.GetReservedWords(Dialect
dialect, IConnectionHelper connectionHelper) +89
NHibernate.Tool.hbm2ddl.SchemaMetadataUpdater.Update(ISessionFactory
sessionFactory) +80
NHibernate.Impl.SessionFactoryImpl..ctor(Configuration cfg, IMapping
mapping, Settings settings, EventListeners listeners) +599
NHibernate.Cfg.Configuration.BuildSessionFactory() +104
MyProject.API.Data.SessionManager..cctor() in
C:\Dev\Code\API\Data\SessionManager.cs:27
Typically, to troubleshoot this, you go to SQL Server Configuration Manager (SSCM) and:
ensure Shared Memory protocol is enabled
ensure Named Pipes protocol is enabled
ensure TCP/IP is enabled, and is ahead of the Named Pipes in the settings
Maybe it can help: Could not open a connection to SQL Server
Note : If this is a new instance of SQL Server be sure SQL Server and Windows Authentication is enabled
Right Click the Server in SSMS and pull up server properties
Go to Security--> Select 'SQL Server and Windows Authentication Mode'
Restart the Server and Login with the credentials
Check if your connection string has "Trusted_Connection=true" added.
I had this same error message, turns out it was because I didn't have mixed mode auth enabled. I was on Windows Auth only. This is common in default MSSQL deployments for vSphere, and becomes an issue when upgrading to vSphere 5.1.
To change to mixed mode auth you can follow the instructions at http://support.webecs.com/kb/a374/how-do-i-configure-sql-server-express-to-enable-mixed-mode-authentication.aspx.
I had the same error by in SQL Server Management Studio.
I found that to look at the more specific error, look at the log file created by the SQL Server. When I opened the log file, I found this error
Could not connect because the maximum number of ’2′ user connections
has already been reached. The system administrator can use
sp_configure to increase the maximum value. The connection has been
closed
I spend quite some time figuring this out. Finally running the following code fixed my problem.
sp_configure 'show advanced options', 1;
go
reconfigure
go
sp_configure 'user connections', 0
go
reconfigure
go
More on here and here
Edit
To view logs search for "logs" on windows startup button, click "view events logs". From there go to Applications under "Windows Logs". You can also choose "System" logs to see system wise errors. You can use filter on current logs by clicking "Filter Current Logs" on right side and then select "Error checkbox".
Just another possibility. I had to restart the sql server service to fix this issue for me.
The "real" error was in the SQL error log:
C:\Program Files\Microsoft SQL Server\MSSQL14.MSSQLSERVER\MSSQL\log\ERRORLOG
Path will depend on your version of SQL Server
You should enable the Server authentication mode to mixed mode as following:
In SQL Studio, select YourServer -> Property -> Security -> Select SqlServer and Window Authentication mode.
Goto to SQL server using windows Credentials - > Logins - > Select the Login - > in the Properties -> Check if the Log in is enabled/disabled.
If Disabled, make it enable, this solution worked for me.
Adding this to my connection string worked for me:
Trusted_Connection=true
In C# and SQL SERVER, we can fix the error by adding Integrated Security = true to the connection string.
Please find the full connection string:
constr = #"Data Source=<Data-Source-Server-Name>;Initial Catalog=<DB-Name>;Integrated Security=true";
By looking into SQL SERVER log file in "C:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\Log\ERRORLOG", it says
"Login failed for user 'XXXXX'. Reason: An attempt to login using SQL authentication failed. Server is configured for Windows authentication only. [CLIENT: ]"
The fixing method is to open "Microsoft SQL Server Management Studio" -> Right click the SQL server and then select "Properties" -> Security -> Change the authentication to mixed mode. -> Restart SQL server.
I was getting this error today. In my case, looking at the ERRORLOG file on the SQL server gave me this error:
Login failed for user ''. Reason: Failed to open the
database '' specified in the login properties.
This was because I had deleted the "Default database" of this user a few days ago. Setting the default database to my new database fixed the problem.
Hope this helps someone else.
I forgot to add the "Password=xxx;" in the connection string in my case.
I had the same error, Fixed it by ensuring that SQL server had SQL authentication mode enabled.
see images below.
To enable, go to server properties.
Click on the Security tab and select the SQL server and window server auth mode and press ok
You will need to restart the server for the changes to reflect, should be fine now.
Enable Mixed authentication mode while installing MSSQL server. Also provide password for sa user.
Hi Just enable both for server authentication as per screen shot attached below.
All good and valid courses of investigation especially the logs for more info.
For those hitting this it might be a simple gotcha where when you have created the DB User you may have enforced a password policy and left the user to change the password on first login (i.e. left the checkboxes around the password field at their default values).
Very easily done in SQL Management Studio and can of course cause authentication issues off the bat that are masked unless you look into the logs.
Check that the server name you're logging into with SQL Management Studio matches your connection string.
I was getting this error today.
It turned out that I hadn't realised the machine with SQL Server installed had multiples servers running. I had in fact put my database in a totally different server to the one I thought I was using. (So my connection string was pointing to a server with no database)
Hence, When .net tried to access the database it couldn't find anything and gave only a misleading error message about pipes.
I opened the correct server in SQL Management Studio, added my database to and then all worked fine.
(If the correct server isn't available in the dropdown, try browsing for it.)
In my case it was a spelling mistake in the database name in connection string.
This is old but I had the problem in the connect dialog that it was still defaulting to a database I had removed. And by running those commands the default database in the prompt wasn't changing.
I read somewhere I can't find now, that if you open the "Connect to Server" dialog and then select "Options" and select "Connection Properties" tab by typing the default database (no by selecting from the drop down) the database will then stay on that new value entered. This sounds like a flaw to me but in case someone was wondering about that, that should fix the issue, at least on SQL Server 2012
I know i am probably the only one that will have this problem in this way. but if you deleted the mdf files in the C:/{user}/ directory, you will get this error too. restore it and you are golden
I ran across this in a code-first application which expected the database to be there:
Make sure the database is created / the name in the connection string is correct.
I had the same problem. I tried all the suggested answers in this page but to no avail! Finally, I tried the steps below and it worked for me:
In SQL Server Management Studio Object Explorer, right-click the server, and then click Properties.
On the Security page, under Server authentication, select the new
server authentication mode, and then click OK.
In the SQL Server Management Studio dialog box, click OK to
acknowledge the requirement to restart SQL Server.
In Object Explorer, right-click your server, and then click Restart.
If SQL Server Agent is running, it must also be restarted.
Then try this in your Package Manager Console:
Scaffold-DbContext "Server=YourServer;Database=YourDB;Persist Security Info=False;User=YourUserName; Password=YourPassword; MultipleActiveResultSets=False;Encrypt=False; TrustServerCertificate=False; Connection Timeout=30;" Microsoft.EntityFrameworkCore.SqlServer -OutputDir Models -Context DatabaseContext -f
In my case, my situation was a little different.
1. My Mistake: I was missing a ";" in stringConnection. I know this is a newbie bug, but I am new to C # and SQL Server. I have one day :)
private string connectionString = "Data Source=localhost;Initial Catalog=FundamentalsCSharp"
+ "User=sa;Password=123456";
2. My Solution: Put a ";" it was missing after the phrase "FundamentalsCSharp" and it worked.
private string connectionString = "Data Source=localhost;Initial Catalog=FundamentalsCSharp;"
+ "User=sa;Password=123456";
3. Note: Change "FundamentalsCSharp" for your owned Initial Catalog.
I hope this can be of use to someone. Thanks!
In my case, my project is Asp.net Core 3.1 and this is my connection string
"ConnectionString": "Data Source=.; Initial Catalog=WebDB; user Id=sa; Password=123"
And database name in sql server webdb (lower case in sql server).
After many time change database name webdb in connecion string and worked fine.
For those doing entityframework code first, also check to enture you have done your migrations.
The best place to look for the root cause is the sql server error log
In my case My disk was full 99%, It worked after I freed up to 80% of the disk.

How to fix the error DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER?

I am getting the following error when my DTS package is scheduled:
Description: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER
I am not sure how to get my DTS packages to execute. They run fine when I manually execute them
I am running SQL Server 2005. DTS Packages were created using the Import/Export Wizard.
I changed authentication from SQL Server to Windows Auth and it did the trick. Not sure the technical reason why.
https://imgalib.wordpress.com/2013/01/24/how-to-solve-ssis-error-code-0xc020801c0xc004700c0xc0047017/
Its the issue with excel processing. Required to change default Runtime.
Navigate to “Debugging” option from left panel and from Right panel change Run64BitRuntime value to false. in project properties.
Check the link above for detailed steps.
I think the problem is with the login/password combination in any of the connections in the connection manager of the DTS, or some problem with the access to the server where the db is located.
If your server name is over 31 characters long (including hostname), then it will not fire.
When a package is scheduled, it normally runs under the context and persmissions of the SQL Server Agent.
Does the package make a connection to a drive letter or other mechanism which is not available to the unattended sqlserver agent account?