Visual Studio Connection String Sql Server – I don’t understand the problem as my instance name is local machine name “austen-pc”. My data source is the same name in the connection string.
Blockquote “A network or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or could not be reached. Check that the instance name is correct and that SQL Server is configured to allow remote connections. (Provider : Network Interfaces SQL, Error: 26 – Error finding server/ instance specified)”
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The server is down or you don’t have the correct configuration. These are common causes. I think SQL Server is up, so I’ll go from there. If not, you can start it.
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I haven’t encountered this personally, but you can usually find the problem by opening SQL Server Configuration Manager and going to SQl Server Network Configuration. Then you need to enable more than shared memory (default). I’ll start with named pipes, because it’s a tool (package manager). TCP/IP isn’t used much here, but you can enable it if the proposed pipes don’t work for you.
For remote connections, you’ll also need to open SQL Browser, but that’s not an issue here since you’re close.
I’ve seen @esner_togo’s suggestion and the thread probably won’t help you, but if my comment doesn’t solve the problem there’s a link below.
Installing SQL Express 2012 seems to fix it for me. It seems that .SQLEXPRESS is allowed to be used when the 2012 version is installed.
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By clicking “Accept All Cookies”, you agree that StockExchange may store cookies on your device and disclose information in accordance with our Cookie Policy. With Visual Studio, you can connect to any of the following Azure SQL Databases using the Connected Services feature:
The integration service function adds all references needed by the integration code to your project and modifies your configuration files accordingly.
This topic applies to Visual Studio on Windows. For Visual Studio for Mac, see Integrated Services in Visual Studio for Mac.
It may be easier to work with an on-premises database during early development, but with Entity Framework Core, when you’re ready to move to the cloud, you can use Visual Studio’s support for Entity Framework migrations to migrate or merge your database. changes. and remote data collection. See Immigration Summary.
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In the Integrated Services tab, you can find the migration commands by clicking the three dots as shown in the screenshot:
Commands are available to create new migrations, use them directly, or create SQL scripts that use the migrations.
When data structure changes are introduced, you can use Entity Framework’s basic tools to add corresponding migrations that define in code the updates needed to synchronize the database schemas. Entity Framework compares the current model against an overview of the old model to identify baseline differences and generates migration source files. The files are added to your project, usually in a folder called
When you select this option, you are prompted to provide the context class name that represents the database schema you want to migrate.
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After the migration is created, it can be applied to the database. Entity Framework updates your database and system with the changes specified in the migration code. When you select this option, you are prompted to provide the context class name that represents the database schema you want to migrate.
The recommended way to deploy a migration to a production database is to create SQL scripts. The advantages of this technique include the following:
When you use this option, you will be prompted for the location of the database context class and script file.
Conveniently, this command lets you jump into SQL Server Object Explorer, so you can view tables and other database entities and work directly with your data. See Object Explorer. The steps in this article show how to connect to a data source in the Visual Studio IDE. The data source can be an internal database, an online data service, or an open source database
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File. You can work directly with your data in Visual Studio. You can run queries, edit data, create and edit tables and other schema properties, edit stored procedures and functions, triggers, etc. These functions are independent of the programming language or version of .NET you are using.
Files, and view and edit tables and rows of data using Server Explorer or SQL Server Object Explorer. The functions of these windows overlap to some extent. The main differences are:
To create a connection to a database, click the Connect to Database icon in Server Explorer, or right-click the Data Connections node in Server Explorer and select Add Connection. From here, you can open a connection to the LocalDB database
This will bring up the Add Connection dialog box. Here, we have entered the SQL Server LocalDB instance name,
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If you do not have access to another database and do not see LocalDB installed, you can install LocalDB through the Visual Studio installer, a data storage and processing workload, ASP.NET and Web development workloads, or a standalone component. See Configure Visual Studio.
File means the master database file and the SQL database stored in the file. These files are related
(log database file) contains the logs for that database. You can create new databases stored locally
File in your project, you can double-click or right-click and select Open to open it in Server Explorer.
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If the data source is not what you want, click the Change button to select a new data source and/or a new ADO.NET data provider. The new service provider may ask for credentials, depending on how you set it up.
If you are using Visual Studio 2022 to connect to OLEDB or ODBC data providers, you should be aware that Visual Studio 2022 is now a 64-bit process.
This means that some data tools in Visual Studio are unable to connect to OLEDB or ODBC databases using 32-bit data providers. This includes the Microsoft Access 32-bit OLEDB data provider and other 32-bit providers.
If you need to manage 32-bit applications that connect to OLEDB or ODBC, you should be able to build and run the applications using Visual Studio 2022. However, if you need to use any of Visual Studio’s data tools such as Server Explorer. , Data Source Wizard, or Dataset Designer, you will need to use an earlier version of Visual Studio that is still a 32-bit process. The last version of Visual Studio that was a 32-bit process was Visual Studio 2019.
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If you plan to convert the project to 64-bit processing you will need to update OLEDB and ODBC data connections to use 64-bit data providers.
If your application uses Microsoft Access databases and the project is converted to 64-bit, it is recommended that you use the 64-bit Microsoft Access Database Engine, also known as the Access Integration Engine (ACE). For more information please see OLE DB Provider and ODBC Driver 32-bit versions for Jet.
If you are using a third-party data provider, we recommend checking with your vendor to see if they offer a 64-bit provider before converting the project to 64-bit.
After selecting the data source, click Test Connection. If this does not work, you will need to troubleshoot according to the vendor’s documentation.
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The experience is easier if you use SQL Server Object Explorer, which provides you with a dialog that provides more help finding databases locally, on the local network, and in your Azure subscription, and provides a history of recently used options.
A connection dialog will appear. Select your local, network, or Azure SQL Server, select a database, provide credentials, and select a connection.
If you need to set other settings in your connection string, you can use the top link, which will bring up all the settings. For example, to connect to a LocalDB database that depends on an MDF file, select Advanced and then set the AppendDbFilename option.
After you finish setting up the connection, the server and database are displayed in the SQL Server Object Explorer window.
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From there, you can browse the database, write and execute queries, edit data, use stored procedures and functions, and perform other actions directly in Visual Studio.
If you’re using the .NET Framework (not .NET Core or .NET 5 or later) with Windows Forms or WPF, you can use the Data Sources window, for example, to set data binding for controls in Windows Forms and WPF. See Applications, Add New Data Sources. These tools are designed to enable you to quickly create Windows applications that require users to enter, display, and manipulate data.
If you are using .NET 5 or later, .NET Core, or ASP.NET Core, you can connect your application to the database using Integrated Services. Using integrated services, you can easily use SQL LocalDB, an on-premises development database managed by SQL Server running in a container, or an on-premises instance of SQL Server, and then migrate to Azure SQL Database when you’re ready. to assign
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