localdb

问题 I am creating a clickonce installer for my wpf application from within Visual Studio 2013 Community edition. This application uses a localdb. It works fine on the target machines if I manually install sqlserver express 2014 LocalDB. But I would like to include the installer for SQL Server Express 2014 LocalDB with my clickonce deployment. When I open the prerequisites dialog, however, only SQL Server 2012 Express LocalDB is available (see image). I tried selecting '2012, but it is not

问题 I have designed a software using SqlLocalDb v11.0 instance. The database will be on user's machine ( .mdf file). I was using SQL Server CE before. In SQL Server CE my database is protected by a password with "Encryption Mode = Engine Default" Is there any way to protect SqlLocalDB? I know there is a way using named instances, as in the link https://msdn.microsoft.com/en-us/library/hh510202(v=sql.110).aspx Is there any way to associate password with LocalDB .mdf file. So that any other can not

问题 So i have a localdb set up for my project in Visual Studio but when I publish it to my Azure web app, I get " An unhandled exception occurred while processing the request. Win32Exception: The system canot find the file specified TryGetConnection" I tried adding a "DefaultConnection" Connection String with the database/server as the value in the Web App settings but that didn't do anything 回答1: LocalDb doesn't exist for Azure. LocalDb is a feature of SQL Server Express, there is no equivalency

问题 I've started to experiment with the SQL Server 2012 feature LocalDb. I'm doing some powershell scripting with SMO against the instances I create, such as creating databases. To do this, I have this function: Function New-Database { Param( $server, $databaseName ) $serverHandle = New-Object Microsoft.SqlServer.Management.Smo.Server($server) if($serverHandle.Databases.Name.Contains($databaseName)) { throw "Database $databaseName already exists" } $databaseHandle = New-Object Microsoft.SqlServer

问题 I've started to experiment with the SQL Server 2012 feature LocalDb. I'm doing some powershell scripting with SMO against the instances I create, such as creating databases. To do this, I have this function: Function New-Database { Param( $server, $databaseName ) $serverHandle = New-Object Microsoft.SqlServer.Management.Smo.Server($server) if($serverHandle.Databases.Name.Contains($databaseName)) { throw "Database $databaseName already exists" } $databaseHandle = New-Object Microsoft.SqlServer

问题 string dbpath= System.Windows.Forms.Application.StartupPath; string dbp = dbpath + "\\MyDatabase.Mdf"; SqlCommand cmd = new SqlCommand("backup database ['"+dbp+"'] to disk ='d:\\svBackUp1.bak' with init,stats=10",con); cmd.ExecuteNonQuery(); 回答1: Error was that "The identifier start with---- is too long. Maximum length is 128" so I Make the "MyDatabase.mdf" with small Name "MyDb.mdf".So the identifier becomes less than 128. My code is SqlConnection con = new SqlConnection(ConfigurationManager

问题 We created a windows application in .net 3.5. When i run it on my development machine (installed application, not from VS) i can connect to a local db database server using the servername: (localdb)\v11.0 . When starting on the client's computer i get an exception when using this servername. When i use the named-pipe servername i can connect and query the databases. On my development machine i can also connect to (localdb)\v11.0 from SSMS (Express) 2008 R2 SP2. This also does not work on the

问题 SQL Server newbie here - I'm trying to access the localdb\MSSQLLocalDB server on my computer through PowerShell with the SQLCMD utility. I'm using PowerShell v5, .NET v5.0, and The server name is (localdb)\MSSQLLocalDB when I connect to it in Microsoft SQL Server Management Studio 2014. PS C:\> sqlcmd -S localdb\MSSQLLocalDB and PS C:\> sqlcmd -S .\localdb\MSSQLLocalDB result in this error: Sqlcmd: Error: Microsoft ODBC Driver 11 for SQL Server : SQL Server Network Interfaces: Error Locating

问题 Right now by code looks like the following: private void DatabaseIntegrityCheck() { try { string m_checksum; using (FileStream stream = File.OpenRead(@"C:\~\db.mdf")) { SHA256Managed sha = new SHA256Managed(); byte[] checksum = sha.ComputeHash(stream); m_checksum = BitConverter.ToString(checksum).Replace("-", String.Empty); } Console.WriteLine(m_checksum); } catch (Exception ex) { Console.WriteLine("unable to retrieve checksum"); } } When I set a breakpoint in my code to see what the

问题 What i want to do is develop an algorithm to calculate which known locations are closest to the selected location. Let's say i have 7 locations in the database and when the user selects one, he should have the option to see the, let's say, first 3 closest locations (from the database). In the database, each location is saved with latitude and longitude. Any idea on how i can do that? Example: Say the list contains 100 locations of bike stations. I am at station 5, and I want to find out what