sql-server-ce | 易学教程

Using SMO to script PARTIAL data content (only rows matching a WHERE clause)

阅读更多关于 Using SMO to script PARTIAL data content (only rows matching a WHERE clause)

I use SMO to fill a SQL Compact database with the data of a SQL server database. Here is the code I actually use: foreach(Table l_tblCurrent in l_dbDatabase.Tables) { if(l_tblCurrent.IsSystemObject) continue; ScriptingOptions l_scOptions = new ScriptingOptions(); l_scOptions.NoIdentities = true; l_scOptions.NoCollation = true; l_scOptions.NoCommandTerminator = true; l_scOptions.NoFileGroup = true; l_scOptions.ScriptSchema = true; l_scOptions.ScriptData = true; foreach(string l_strCurrent in l_tblCurrent.EnumScript(l_scOptions)) { l_sccDBFCommand.CommandText = l_strCurrent.Replace("[dbo].", "")

How can I programmatically determine if a table exists within a SQL Server CE database?

阅读更多关于 How can I programmatically determine if a table exists within a SQL Server CE database?

问题 Back when I only had one table in my .sdf file, this code worked fine: const string sdfPath = @"\Program Files\duckbilled\Platypus.sdf"; string dataSource = string.Format("Data Source={0}", sdfPath); if (!File.Exists(sdfPath)) { using (var engine = new SqlCeEngine(dataSource)) { engine.CreateDatabase(); } using (var connection = new SqlCeConnection(dataSource)) { connection.Open(); using (var command = new SqlCeCommand()) { command.Connection = connection; command.CommandText = "CREATE TABLE

Should I use Lucene.Net for full text search with SQL Compact Edition 4, or is there a better option?

阅读更多关于 Should I use Lucene.Net for full text search with SQL Compact Edition 4, or is there a better option?

问题 I'm trying to create a full text search facility for a small blog which is running against a SQL Compact Edition 4 database. There seems to be almost no information out there about this (though I'd be happy if someone can prove me wrong), but as far as I can gather, SQL CE doesn't support the normal SQL Server full-text indexing. I have briefly looked into using Lucene.Net, but it seems quite complex at first glance; would this be my best option here, or is there a simpler solution which I'm

Moving data from SQL Compact to SQL Server 2008

阅读更多关于 Moving data from SQL Compact to SQL Server 2008

I have created an .SDF file and inserted data into the SDF database file on a mobile device. I want to transform .SDF file to a SQL Server 2008 Database File but don't know how. Any pointers or suggestions would be appreciated. You cannot directly convert a SQL Compact database into a full SQL Server 2008 database, as they are structured completely different. And as far as I know you cannot use SSIS (SQL Server Integration Services) to copy data from the SQL Compact database to a SQL Server database (the other way round would be possible). So the only real option seems to write some app that

NHibernate QueryOver<> - Aggregate function over SubQuery

阅读更多关于 NHibernate QueryOver - Aggregate function over SubQuery

问题 How can I write the following SQL statement using QueryOver<> syntax? SELECT COUNT(*) FROM ( SELECT FirstName,LastName FROM People GROUP BY FirstName, LastName ) as sub_t I have the inner query working so far: var q = _session.QueryOver<Person>() .SelectList(l => l .SelectGroup(x => x.FirstName) .SelectGroup(x => x.LastName)); But I have no idea how to wrap this in a subquery and get a row count out of it. Can it be done? Unfortunately my RDBMS dialect (MsSqlCe40Dialect) does not support

extract schema for sql server compact edition

阅读更多关于 extract schema for sql server compact edition

问题 Is there a way to generate the sql statement for tables in sql server compact ? same as for sql server express+ ? Essentially a create table( .... ) statement as output ? 回答1: There is a project on Codeplex that someone has actually built the functionality to be able to do scripting for sql server compact edition databases. 回答2: There is a tool to do this. Check out http://www.antipodeansoftware.com/Home/Products This will iterate the entire SQL server, and write all the table, view, stored

SQL: Return only first occurrence

阅读更多关于 SQL: Return only first occurrence

问题 I seldomly use SQL and I cannot find anything similar in my archive so I'm asking this simple query question: I need a query which one returns personID and only the first seenTime Records: seenID | personID | seenTime 108 3 13:34 109 2 13:56 110 3 14:22 111 3 14:31 112 4 15:04 113 2 15:52 Wanted result: personID | seenTime 3 13:34 2 13:56 4 15:04 That's what I did & failed: SELECT t.attendanceID, t.seenPersonID, t.seenTime (SELECT ROW_NUMBER() OVER (PARTITION BY seenID ORDER BY seenID) AS

How can I connect to a SQL Server Compact 3.5 file as a data source in Visual Studio 2012?

阅读更多关于 How can I connect to a SQL Server Compact 3.5 file as a data source in Visual Studio 2012?

Visual Studio 2012 comes with SQL Server Compact 4.0. I have installed SQL Server Compact 3.5 from http://www.microsoft.com/en-GB/download/confirmation.aspx?id=5783 However I still only have the option of making a new data connection to a SQL Server Compact 4.0 file, whereas the files I need to get data from are SQL Server Compact 3.5 files. Is it possible to connect to a SQL Server Compact 3.5 file as a data source in Visual Studio 2012? If so which settings or installs should I need? dumbledad Over in a thread I started on SQL Server Developer Center > SQL Server Forums > SQL Server Compact

Visual Studio 2010: Can't create new connection to SQL Server Compact 4.0

阅读更多关于 Visual Studio 2010: Can't create new connection to SQL Server Compact 4.0

I have just installed SQL Server Compact Edition 4.0 on my Windows 7 machine. (Note that I already had SQL Server Compact 3.5 SP2 on the machine). However, in my Visual Studio 2010 project, I am unable to create a new connection to a SQL Server Compact Edition 4.0 database... i.e. - by doing the following: In Server Explorer, right click "Data Connections" "Add Connection" "Change Data Source" - Microsoft SQL Server Compact 4.0 not an option (only version 3.5) How can I make Visual Studio 2010 know about my already installed copy of Microsoft SQL Server Compact 4.0? See SQL Server Compact 4.0

sql ce native exception 0xc0000005

阅读更多关于 sql ce native exception 0xc0000005

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 simple: SELECT _id, Latitude, Longitude, Ignicao, Altitude, Velocidade,Direcao, Qualidade, Timestamp,