I can't believe I couldn't find a working solution to this after an hour of searching. I'm following this article on Entity Framework 6.0 which gives a simple walk-through on Code First. I created the project and installed the latest EF Nuget package for the project to compile. I also verified that I have Microsoft SQL Server 2012 Express LocalDB installed which came with Visual Studio 2013. I don't have any other instances of SQL installed on my local computer. The program runs and entries are added to the database and outputted in the console. But when the article says "check your localdb" it doesn't say how! I don't see any '.mdf' or '.ldf' files created under the project folder. I tried every way to connect Visual Studio's Server Explorer to LocalDB. The wizard cannot locate (localdb) or cannot find any provider in Server Explorer to accept connection string like (localdb)\v11.0;Integrated Security=true; I've seen this asked several places in StackOverflow but no answer works or marked as answer. Please help, this doesn't have to be this frustrating!
What are the steps to connect Visual Studio Server Explorer to LocalDB?
In Visual Studio 2012 all I had to do was enter:
(localdb)\v11.0 Visual Studio 2015 and Visual Studio 2017 changed to:
(localdb)\MSSQLLocalDB as the server name when adding a Microsoft SQL Server Data source in:
View/Server Explorer/(Right click) Data Connections/Add Connection and then the database names were populated. I didn't need to do all the other steps in the accepted answer, although it would be nice if the server name was available automatically in the server name combo box.
You can also browse the LocalDB database names available on your machine using:
View/SQL Server Object Explorer. OK, answering to my own question.
Steps to connect LocalDB to Visual Studio Server Explorer
- Open command prompt
- Run
SqlLocalDB.exe start v11.0 - Run
SqlLocalDB.exe info v11.0 - Copy the Instance pipe name that starts with np:\...
- In Visual Studio select TOOLS > Connect to Database...
- For Server Name enter
(localdb)\v11.0. If it didn't work, use the Instance pipe name that you copied earlier. You can also use this to connect with SQL Management Studio. - Select the database on next dropdown list
- Click OK
Select in :
- Data Source:
Microsoft SQL Server (SqlClient) - Server name:
(localdb)\MSSQLLocalDB - Log on to the server:
Use Windows Authentication
Press Refresh button to get the database name :)
Use SQL Server Object Explorer (SSOX) Instead
Unlike the other answers, this approach uses:
- No special commands.
- No complicated configurations.
Just use the SQL Server Object Explorer
It's pretty straightforward...
- From the View menu, open SQL Server Object Explorer.
- Right click on the
{YourTableName}table > View Designer
Done.
It worked for me.
- Open command prompt
- Run "SqlLocalDB.exe start"
- System response "LocalDB instance "mssqllocaldb" started."
- In VS， View/Server Explorer/(Right click) Data Connections/Add Connection
- Data Source: Microsoft SQL Server (SqlClient)
- Server name: (localdb)\MSSQLLocalDB
- Log on to the server: Use Windows Authentication
- Press "Test Connection", Then OK.
The following works with Visual Studio 2017 Community Edition on Windows 10 using SQLServer Express 2016.
Open a PowerShell check what it is called using SqlLocalDB.exe info and whether it is Running with SqlLocalDB.exe info NAME. Here's what it looks like on my machine:
> SqlLocalDB.exe info MSSQLLocalDB > SqlLocalDB.exe info MSSQLLocalDB Name: mssqllocaldb Version: 13.0.1601.5 Shared name: Owner: DESKTOP-I4H3E09\simon Auto-create: Yes State: Running Last start time: 4/12/2017 8:24:36 AM Instance pipe name: np:\\.\pipe\LOCALDB#EFC58609\tsql\query > If it isn't running then you need to start it with SqlLocalDB.exe start MSSQLLocalDB. When it is running you see the Instance pipe name: which starts with np:\\. Copy that named pipe string. Within VS2017 open the view Server Explorer and create a new connection of type Microsoft SQL Server (SqlClient) (don't be fooled by the other file types you want the full fat connection type) and set the Server name: to be the instance pipe name you copied from PowerShell.
I also set the Connect to database to be the same database that was in the connection string that was working in my Dotnet Core / Entity Framework Core project which was set up using dotnet ef database update.
You can login and create a database using the sqlcmd and the named pipe string:
sqlcmd -S np:\\.\pipe\LOCALDB#EFC58609\tsql\query 1> create database EFGetStarted.ConsoleApp.NewDb; 2> GO
There are instructions on how to create a user for your application at https://docs.microsoft.com/en-us/sql/tools/sqllocaldb-utility
Visual Studio 2015 RC, has LocalDb 12 installed, similar instructions to before but still shouldn't be required to know 'magic', before hand to use this, the default instance should have been turned on ... Rant complete, no for solution:
cmd> sqllocaldb start Which will display
LocalDB instance "MSSQLLocalDB" started. Your instance name might differ. Either way pop over to VS and open Server Explorer, right click Data Connections, choose Add, choose SQL Server, in the server name type:
(localdb)\MSSQLLocalDB Without entering in a DB name, click 'Test Connection'.
Fix doesn't work.
Exactly as in the example illustration, all these steps only provide access to "system" databases, and no option to select existing user databases that you want to access.
The solution to access a local (not Express Edition) Microsoft SQL server instance resides on the SQL Server side:
- Open the Run dialog (WinKey + R)
- Type: "services.msc"
- Select SQL Server Browser
- Click Properties
- Change "disabled" to either "Manual" or "Automatic"
- When the "Start" service button gets enable, click on it.
Done! Now you can select your local SQL Server from the Server Name list in Connection Properties.
Run the CMD as admin.
- from start menu 'cmd' - wait for it to find it.
- Right click on cmd, and select open as administrator
- type : cd C:\Program Files\Microsoft SQL Server\120\Tools\Binn
- type : SqlLocalDB start
- now type : SqlLocalDB info
- Shows the running sql instances available... choose what you want...
to find more about the instance type : SqlLocalDB info instanceName
now from VS you can setup your connection In VS， View/Server Explorer/(Right click) Data Connections/Add Connection Data Source: Microsoft SQL Server (SqlClient) Server name: (localdb)\MSSQLLocalDB Log on to the server: Use Windows Authentication Press "Test Connection", Then OK.
job done
The fastest way in Visual Studio 2017 is to go to Tools -> SQL Server -> New query.. Choose from Local databases and choose the desired Database name at the bottom.
Alternative way
Visual Studio 2017 Server name is:
(localdb)\MSSQLLocalDB Add the new connection using menu Tools -> Connect to Database...
I followed the steps above, but I forgot to install the SQL Server 2014 LocalDB before the Visual Studio 2015 configuration.
My steps are as follow:
- Install the SQL Server 2014 LocalDB;
- Open Visual Studio 2015 and then SQL Server Object Explorer;
- Find your LocalDB under the SQL Server tag.
Hope this help anybody.
Scenario: Windows 8.1, VS2013 Ultimate, SQL Express Installed and running, SQL Server Browser Disabled. This worked for me:
- First I enabled SQL Server Browser under services.
- In Visual Studio: Open the Package Manager Console then type: Enable-Migrations; Then Type Enable-Migrations -ContextTypeName YourContextDbName that created the Migrations folder in VS.
- Inside the Migrations folder you will find the "Configuration.cs" file, turn on automatic migrations by: AutomaticMigrationsEnabled = true;
- Run your application again, the environment creates a DefaultConnection and you will see the new tables from your context. This new connection points to the localdb. The created connection string shows: Data Source=(LocalDb)\v11.0 ... (more parameters and path to the created mdf file)
You can now create a new connection with Server name: (LocalDb)\v11.0 (hit refresh) Connect to a database: Select your new database under the dropdown.
I hope it helps.
With SQL Server 2017 and Visual Studio 2015, I used localhost\SQLEXPRESS
来源：https://stackoverflow.com/questions/21563940/how-to-connect-to-localdb-in-visual-studio-server-explorer