Unable to connect to the database engine using SQL Server management studio - sql-server

I installed SQLManagementStudio_x64_ENU from Microsoft site on my Windows 7 Home Premium.
It gave me compatibility warnings but I still installed because Microsoft site specified that I would receive warnings but suggested to click on Run Program, which I did.
It was successfully installed. I checked Services.msc, and I can see two SQL Server services are running. I checked SQL Server Configuration, and I can see services running under automatic mode, and the agent is off.
When I open my management studio and try to connect using "Server name" option, I can't see any server instance in browse option. There are no servers to connect. I am not able to connect to the database engine. I have tried at least 10 times, but still, it's not allowing me to connect.
I get the following error:
A network-related or instance-specific error occurred while establishing a
connectionto SQL Server. The server was not found or was not accessible.
Verify that the instance name is correct and that SQL Server is configured to
allow remote connections.
(provider: Named Pipes Provider, error: 40 - Could not open a connection
to SQL Server) (.Net SqlClient Data Provider)
Can someone help me with this problem?

In the Connect to server dialog of the SQL Server Management Studio (SSMS), type <your machine name>\SQLServer2008 to connect to SQLServer2008 instance. Otherwise, type <your machine name> alone in the server name text box to connect to the default instance SQLExpress.
Following link discusses how to fix the error Microsoft.SqlServer.Management.Dmf.PolicyStore
SSMS 2008 on Windows 7 throws exception when connecting Object Explorer

Related

SSIS OLEDB Connection Manager - Unable to connect to a database (No database names appear)

I am trying to create a connection manager in Microsoft SQL Server Data Tools for Visual Studio 2017 (SSDT) for an integration services project.
In the Connection Manager:
The Provider is set to: Native OLE DB\SQL Server Naive Client 11.0
The Server name is set to: the name of the local machine
Log on to the server is set to: Windows Authentication
Connect to a database is set to: Select or enter a database name. However no database names appear in the drop down box - the drop down box is blank. I am expecting the name of the database i am working on, including the master database etc to be present.
When I Test Connection, I get an error message which says:
'Test connection failed because of an error in initializing provider. Login timeout expired
A network-related or instance-specific error has occurred while establishing a connection to SQL Server. Server is not found or not accessible. Check if instance name is correct and if SQL Server is configured to allow remote connections. For more information see SQL Server Books Online.
Named Pipes Provider: Could not open a connection to SQL Server [2]..'
I am using SQL Server 2017 and Microsoft SQL Server Management Studio 18.
Allow remote connections has been ticked in SSMS.
The only thing i can see is the SQL Server Agent and SQL Server Browser has stopped / is not running and the TCP/IP Protocols for SQLEXPRESS is set to disabled - I am unable to enable it without a further Access is denied (0x80070005) error.
I have tried to follow all of the guides but cannot progress. Could somebody please offer some further guidance?
I have resolved the issue. It was an extremely silly oversight! On installation, the server name in the Visual Studio 17 Connection Manager was listed as: Local MachineName only. In SQL Server, the Server Name was listed as: LocalMachineName\SQLEXPRESS. The Server Name in VS17 has to be exactly the same as SQL Server. As i said, this is a very silly oversight on my part but have documented for future reference.
SQL Server Configuration Manager ==> SQL Server Services(Left sidebar) ==> Right Click and Start all Stopped services

Why can't I connect to the SQL Server instance on my local machine?

I have just installed SQL Server 2016 (Developer Edition) database engine on my dev machine (Windows 10).
When installing I named the instance CUBE, with Windows authentication using the current (only) user's credentials.
I can see the instance running in Services:
When I try to login using SQL Management Studio I get the following error:
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible...
Things I've tried:
Checked the server is running (it is)
Opened firewall port 1433 (no difference)
In SQL Server Configuration Manager > SQL Server Network Configuration I've enabled Named Pipes and TCP/IP
I can't see what I'm doing wrong - can anyone help?
Make sure that the MSSQLSERVER service is running, you can check the following article from microsoft on how to manipulate the MSSQLSERVER Service.
Start, Stop, Pause, Resume, Restart the Database Engine, SQL Server Agent, or SQL Server Browser Service
finally, take a look to the following post it might help you:
Why am I getting "Cannot Connect to Server - A network-related or instance-specific error"?

Unable to connect in Management Studio Express of SQL Server 2005

I'm trying to connect to my local machine name as "Server Name", and giving windows authentication, but its throwing some error:-
"A network-related or instance-specific error occurred while
establishing a connection to SQL Server. The server was not found or
was not accessible. Verify that the instance name is correct and that
SQL Server is configured to allow remote connections. (provider: Named
Pipes Provider, error: 40 - Could not open a connection to SQL Server)
(.Net SqlClient Data Provider)"
Please note previously it was connecting all well some few months back, but now it throws error. I tried lot of alternatives provided around the web, but nothing worked.
Did I miss something ?
If the service is running on your local machine, try connecting with "LocalHost" as the server name.
Also, did you check that the service is running?
There are several reasons for this to happen:
Check if your SQL is up and running
Check there is no firewall messing around
Check on the configuration manager if sql services is up
Check if TCP/IP is active on the configuration manager
Sometimes, I know is weird, but his error shows up if you haven't configured your server for mixed security (both windows and SQL Server). Try connecting with a windows user with SA permissions and activate SQL authentication as well.
To do this, open SQL Server manager and connect with the SA user, right click on the server properties, check the "Security" tab for "SQL Sever and windows authentication mode"
Check this blog post that will lead you from some of the points I told you.
http://blog.sqlauthority.com/2009/05/21/sql-server-fix-error-provider-named-pipes-provider-error-40-could-not-open-a-connection-to-sql-server-microsoft-sql-server-error/

SQL Server Express 2012 Error: Cannot connect to Local DB

I have installed Sql Express 2012 version. I installed Local Db separately. i can see its installed when I click on "Installed Sql Server discovery report". However, I cannot connect to it using Sql Server Management Studio or Microsoft Visual Studio 2012 Professional Edition. I get the error:
"The attempt to attach to the database failed with the following
information: A network-related or instance-specific error occurred
while establishing a connection to SQL Server. The server was not
found or was not accessible. Verify that the instance name is correct
and that SQL Server is configured to allow remote connections.
(provider: SQL Network Interfaces, error: 50 - Local Database Runtime
error occurred. Cannot create an automatic instance. See the Windows
Application event log for error details."
In Windows Event viewer I see several of following errors with different regsistry keys each time:
"The DataDirectory registry value is missing in the LocalDb instance registry key:{-----}"
I checked in regsitry values for local db in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MicrosoftSQL Server Local DB and there's only one entry "Installed Version".
I have gone through several posts which state solution for the above error and have done almost everything they have suggested but still can't get localDb to work.
I'd appreciate any help that one can provide in order to solve this issue.
UPDATE:
Using Command Line Interface I verified that localDb v11.0 is installed. However, the command sqlLocalDb info v11.0 gives error:"The automatic instance "v11.0" is not created. If I try to create one it gives another error:"Unexpected error occured inside a localDb instance API method call."
You may try to use SQL Server Authentication. Also make sure that your SQL service is running.
Also you may try to delete the following registry:
HKEY_USERS\.DEFAULT\Software\Microsoft\Microsoft SQL Server\UserInstances\[GUID_FROM_EVENT_LOG]
You may also check Getting Started with SQL Server 2012 Express LocalDB
You need to start the SQL service for the local system.
Start Button
Write "SQL Server Configuration Manager" and click on it
After opening "SQL Server Configuration Manager" you need to start the local system services which are may be stopped in it that why your local Database not connected.
After starting local services you just connect the local system database. It should connected successfully.

SQL Server 2008 R2 connection on a VmWare Instance

Here is the scenario I am facing.
I have installed Windows 7 Professional on a VMWare.
Installed SQL Server 2008 R2.
When I launch the Server Management Studio and try to connect to the instance I get the following error
"A network-related or instance-specific error occurred while
establishing a connection to SQL Server. The server was not found or
was not accessible. Verify that the instance name is correct and that
SQL Server is configured to allow remote connections. (provider: Named
Pipes Provider, error: 40 - Could not open a connection to SQL Server)
(Microsoft SQL Server, Error: 53)"
Now, I installed all the packages of SQL server with default settings. The only change that I had done is selected a mix-mode for authentication.
I setup a similar instance on a desktop and it works fine. Before posting it here I have searched on the web and made sure all the services, ports and protocols are enabled/running.
But I still cannot seem to connect, any help?
Ok, so finally found the solution the above mentioned problem. Not sure why, but when I give the instance name pre-appended with .\ it works fine.
.\<INSTANCENAME>
You may not have a default instance installed?
http://msdn.microsoft.com/en-us/library/ms143531.aspx

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