I have reinstalled my SQL Server 2016 as for an unknown reason which lead to the SQL Server down...But, when I finished the installation, I found I can not connect to (LocalDB)\MSSQLLocalDB any more. I got this error message from SQL Server.
Cannot connect to (LocalDB)\MSSQLLocalDB.
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: 52 - Unable to locate a Local Database Runtime installation. Verify that SQL Server Express is properly installed and that the Local Database Runtime feature is enabled.) (Microsoft SQL Server, Error: 2)
Anyone who have any ideas of how to solve this problem? I do need to speed up for my development, but the DB issue stops me to do anything.
LocalDB is a special version of SQL Server Express - if you haven't installed it, you cannot use that server/instance name to connect to it.
You can easily install SQL Server Express LocalDB separately, side-by-side with SQL Server Developer edition - but you need to install it explicitly.
See this other SO question on the topic for more details
Related
The problem: I'm getting this 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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server)
Program files shows this:
MSSQL13.SQLEXPRESS
MSSQL14.SQLEXPRESS
MSSQL14.SQLEXPRESS01
I can access MSSQL14.SQLEXPRESS01 from SSMS 17.9.1, but all of my databases are in MSSQL13.SQLEXPRESS.
Installation:
SQL Server Management Studio 17.9.1
Visual Studio 2019 16.2.1
How can I access the databases in MSSQL13.SQLEXPRESS?
Turns out that "for some reason" SQL Server Services for SQL Server express was not running.
After I used services.msc to start it, I was able to open the SQL Server 13 engine (SQL Server 2016) and see all of my "old" databases.
Thanks to Vivek Janakiraman for providing a solution on the MSDN SQL Server forum.
Unable to Connect to Server in Microsoft SSMS
Getting the below error! Please refer to the attachment for more details.
Error Details: TITLE: Connect to Server
Cannot connect to root.
ADDITIONAL 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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 53)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft%20SQL%20Server&EvtSrc=MSSQLServer&EvtID=53&LinkId=20476
The network path was not found
First of all, your server name regularly is localhost instead of root. Second, from SSMS 16 up, you need additional installation of localhost server. You can read the reference here.
After numerous attempts I tried many versions, I was able to fix this issue by installing the SQL Server 17. I was successfully able to create a server and connect to SQL Server.
I installed Sql Sever Management Express 2012 , but when i try to connect in Sql management studio environment , i have this error .
ADDITIONAL 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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft%20SQL%20Server&EvtSrc=MSSQLServer&EvtID=2&LinkId=20476
The system cannot find the file specified
BUTTONS:
OK
and in during installation i dont have option for select cluster !!
this is my SQL Server Configuration Manager , my sql server service is empty ...
And when get Remove a Failover Cluster Node , this error happened .
http://oi57.tinypic.com/2lrvat.jpg
when i enter SQLEXPRESS , i have error
Cannot connect to SQLEXPRESS. ------------------------------
ADDITIONAL 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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 53)
Viewing your linked images, is clear that you haven't installed or installed unsuccesfully,
Sql Server Express 2012
In your Configuration Server Manager there is no instancse of SQL Server so it is normal not been able to connect.
Q: Sine there is no instance,when you Launch Management Studio what instance name do you select when you try to connect???
You should properly install SQL Server Express 2012
EDIT :
First Check if you have any version of SQL Server or SQL Server Express installed on your machine...(this can be done by looking through installed programs from control panel)
In order to Install and configure SQL Express 2008 follow this steps
Take in mind that you have to use SQL Management Studio 2008 later on (if you have 2008 server)
Hope it helps...
I am new to SQL Server. I have recently installed Microsoft SQL Server Management Studio on my computer. After starting the SQL Server Management Studio, I was asked to give a server name to connect to. I tried connecting it with .\SQLExpress but it is giving me the following error:
Cannot connect to .\SQLExpress
Additional infromation:
A network related or instance specific error occured while establishing a connection to SQL server.The server was not found or was not accessible.Verify that the instance name is correct ant that SQL Server is configured to allow remote connections(provider-SQL Network Interfaces,error:26-Error Locating Server/Instance Specified)(Microsoft SQL Server)
What should I do to get connected?
I've just installed SQL Server 2005 Express and I'm trying to login to Management Studio but I don't know what the "Server Name" is to be able to login.
I've tried:
localhost\SQLEXPRESS
127.0.0.1\SQLEXPRESS
SQLEXPRESS
<computer name>\SQLEXPRESS
<username>\SQLEXPRESS
The authentication mode is Windows Authentication.
The error message I'm getting is:
Could not connect to <computer name>\SQLEXPRESS.
Additional 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. (proveder: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server)
Does anyone point me in the right direction?
Is the SQL Server Express service even up and running??
The local machine can be defined as . or (local) for SQL Server, and the SQL Server Express instance name is SQLExpress by default.
So .\SQLExpress or (local)\SQLExpress ought to work.
If they don't, maybe the service isn't up and running??