This is the place for advice and discussions 0 2. Sign in to vote. The database uses windows authentication. I'm at the end of my wits. Could you help me find the correct connection string? Sunday, November 7, PM. Hello, Please check this link, there you will find some examples of different connection strings for SQL Server Willy Taveras. I also tried Erland's string, but that didn't work either.
Please check this: 1. You must specify the initial principal server and database in the connection string and the failover partner server.
This one is working only on Windows, not on macOS or Linux. There is ofcourse many other ways to write the connection string using database mirroring, this is just one example pointing out the failover functionality. You can combine this with the other connection strings options available.
At the end of the Data Source is the port to use. Read more here. If you connect with ADO. NET or the SQL Native Client to a database that is being mirrored, your application can take advantage of the drivers ability to automatically redirect connections when a database mirroring failover occurs. NET objects. See also the List of all SqlConnection connection string properties. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
NET web application scenarios. It also includes instructions for converting connection strings between SQL Server Express and LocalDB, and explanations of some common connection string settings.
The topic contains the following sections:. The examples show the connection strings as they appear in the ConnectionStrings element of the Web. The example assumes that you are connecting to the default SQL Server instance on the server.
The following example is for a SQL Server database using integrated security log on to the server using the credentials of the Windows user account. The example specifies a named instance of SQL Server.
ContextClass in this example represents the fully qualified context class name for example, namespace. To convert one of these connection strings to LocalDB, make the following changes:. This change assumes that you installed LocalDB with the default instance name. For more information, see Data Source later in this topic. Also remove the preceding or following semicolon ;.
Omit the semicolon ; if the connection string already ends with one. In many cases, you can use different names in the connection string to configure the same setting; for example, the following two connection strings are equivalent:. In the following sections, the section title specifies the version of the setting name most commonly used in ASP.
NET project templates. For settings that have alternative names, those are added in parentheses. You can use ". If you omit the instance name, the default instance is assumed.
For named instances of LocalDB, replace "v For SQL Database the value of this setting typically has a "tcp:" prefix to indicate the protocol used and a "," suffix to indicate the port number. You can use the DataDirectory variable in place of an absolute path; for information about this option, see the following section about the AttachDBFileName setting. This ensures that the path to your database remains current if the application is moved to a different directory.
If you don't use the DataDirectory connection string variable, you have to provide the full physical path to the database file. For more information, see User Instance later in this topic.
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