sql-server-ce

问题 I saw in forums that the limit for an SQL Server compact database is 4gb. Does anyone know if this limit has been increased yet, sql server express was recently expanded to 10GB.. Can anyone point me to the official source for this limit? 回答1: The limit for a SQL Server Compact database is 4GB. Refs: Will the SQL Compact 4.0 limited to 4GB? Microsoft SQL Server Compact 4.0 Wiki: SQL Server Compact Surprisingly, it's not on this page listing differences between SQL Server Compact 3.5, compared

问题 I saw in forums that the limit for an SQL Server compact database is 4gb. Does anyone know if this limit has been increased yet, sql server express was recently expanded to 10GB.. Can anyone point me to the official source for this limit? 回答1: The limit for a SQL Server Compact database is 4GB. Refs: Will the SQL Compact 4.0 limited to 4GB? Microsoft SQL Server Compact 4.0 Wiki: SQL Server Compact Surprisingly, it's not on this page listing differences between SQL Server Compact 3.5, compared

问题 I have a problem with saving data to database named Settings.sdf . I have few files: - Settings.sdf - SettingsDataSet.xsd - SettingsDataSet.Designer.cs - SettingsDataSet.xsc - SettingsDataSet.xss If I tried use UPDATE or INSERT INTO queries I would not update my database ( Settings.sdf ), only change data in cache file (whatever and wherever it is). I'm using correctly all SqlCeCommands . For example: string conString = "Data Source=Settings.sdf"; con = new SqlCeConnection(conString); con

问题 When i run my .net 3.5 cf application that reads some data from ms sql ce, sometimes i get an native exception with the following info: ExceptionCode: 0xc0000005 ExceptionAddress : 0x44746e65 (variable) Reading: 0x44746e64 at NativeMethods.GetKeyInfo(IntPtr pTx, String pwszBaseTable, IntPtr prgDbKeyInfo, Int32 cDbKeyInfo, IntPtr pError) at SqlCeCommand.ExecuteReader(CommandBahavior behavior) (... omitted for brevity) at dadosGpsTableAdapter.GetDadosAEnviar() My GetDadosAEnviar query is very

问题 I have an SQL SqlCeParameter statement for example: mySQLCommand1.CommandText = @" INSERT INTO clientSubjectiveComplaints (clientSubComplaintCreated) VALUES (@ClientSubComplaintCreated) "; Once the INSERT is successful I need the auto generated ID (INT Primary Key) returned so that I can use it in a second INSERT statement. Is this possible for SqlCe ? Please if you can provide an example. 回答1: Like this: using (var connection = new SqlCeConnection(Settings.Default.Database1ConnectionString))

问题 The InitializeDatabaseConnection Method documentation says we can use the MVC 4 "Internet" template's generated membership functionality with SQLCE (SQL Server Compact 4.0 Local Database). I've used this template many times before and have never had a problem when I didn't fiddle with anything and simply used the localDb (the default) that is generated by the Entity Framework the first time we register a user. My requirement is to get the membership tables that are by default generated into

问题 I've found a few articles & discussions on how to import data from Access to SQL Server or SQL Server Express, but not to SQL Server CE. I can access both the the Access data and CE data in the VS database explorer with seperate connections, but don't know how to move the data from one to the other. (I'm using c#.) Any suggestions? Thanks. 回答1: You might look at PrimeWorks' DataPort Wizard. 回答2: You can do it using SSIS, or even in SQL Server Explorer if you are not looking to do it

问题 I'm working on a project where I have a local database (SQL CE) which is used as sort of a buffer while no connection to the server exists. On the server I want to use the same database-layout. Of course I want to use the same EDMX-File which is in a Common.dll available on the Server and the Client. In the Client I have a connection string with provider=System.Data.SqlServerCe.3.5 while it is provider=System.Data.SqlClient on the server. My problem comes when I want to save sth on the Server

问题 Sorting Alphanumeric field in SQL CE (Compact Edition) version 3.5 TreeNumber is a nvarchar field with a mix of numbers and strings for the values. I want to sort these records so that the records that contain alpha characters are at the top and the rest are sorted in numeric order. I want something similar to the following query which works in SQL Server: SELECT * FROM Tree ORDER BY (CASE WHEN TreeNumber LIKE '%[a-z]%' THEN 0 ELSE TreeNumber END), TreeNumber The above query doesn't seem to

问题 Is there an existing method in C# to extract the file path from a string that represents a ConnectionString to a SqlCE .sdf file? I want to check if the file exists at initialization and back it up if the file has been modified. Sample connection string: strConn = "Data Source=|DataDirectory|\dbAlias.sdf"; 回答1: A bit late perhaps, but I came across this question wile struggling with the same problem. You can find the location of the |DataDirectory| folder with AppDomain.CurrentDomain.GetData(