sql-server-ce-3.5

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

由 放肆的年华 提交于 2020-01-14 03:48:19
问题 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? 回答1:

Why does creating a SQLServer Compact table in Server Explorer not create an .SDF file on disk?

由 随声附和 提交于 2020-01-06 15:19:02
问题 I created an .sdf database in Visual Studio 2008 (not programmatically - using the MS Access-like wizard); I can see it, along with the one table that's in it, and that table's columns, in the Server Explorer, yet my project failed on trying to access it, saying the file did not exist - true, it doesn't! In fact, nowhere on the hard drive. How could that be? Where is it? How can I get what I see in Server Explorer to be written to disk? 回答1: A SQL Server Compact file always exists on disk 来源：

SQL Server CE - Select random rows

由 孤街醉人 提交于 2020-01-05 07:07:19
问题 How do you select a random rows from a table? For example, if there are 1000 rows in a table matching the criteria that I want, I want to select just 20 random ones. Like TOP, but random. Thanks, and this is for SQL Server CE 3.5! 回答1: How about this? SELECT TOP(20) * FROM myTable ORDER BY NEWID() 回答2: How about SELECT * FROM tbl_name ORDER BY RAND() LIMIT 0,20; However if your db is with million rows Both newid() and rand() would perform slow. There is a faster solution .Read this 来源： https:

How can I get individual results in SQL Server CE

由 我的未来我决定 提交于 2019-12-13 18:14:44
问题 I'm using SQL Server CE as my database with asp.net. I'm querying the database as follows. SELECT DispatcherName, ActivityType, COUNT(ActivityType) AS Total FROM Activity WHERE (BeginTime >= '4/5/2011 12:00:00 AM') AND (EndTime <= '7/13/2011 12:00:00 AM') GROUP BY DispatcherName, ActivityType ORDER BY Total DESC I'm getting the result as follows: N/A VOX 311 Olson State Change 37 Fred State Change 26 Dave PTT 25 George PTT 25 Olson PTT 23 Dave State Change 22 Jason PTT 22 George State Change

Problems faced in keeping SQL Compact Edition Database on another machine in same network

由 不羁岁月 提交于 2019-12-13 06:19:59
问题 I am using SQL CE 3.5 for one of my project, the front end is WPF application which process the given files and dumps the data to SQL CE database. Presently application and DB is on same machine. Client wants that he should be able to run the application from any machine on the network but database should remain on shared location of Server. User will select the path to SDF file in the Application and then when any file is processed application will dump the data to database. My question is,

display result as 1 row in transposed/pivoted result of sub query in SQL Compact edition

由 萝らか妹 提交于 2019-12-13 05:49:16
问题 I have a table MonitorLocationDetails which looks like below lid LoclColumn LocDescription 1 MP1 MP-1 descr 2 MP2 MP-2 descr 3 MainGate Main Gate descr I should get the rows of LocDescription and transpose it like pivot in sql server other versions. PIVOT not available in sql compact versions. The Pivoting should be based on the result of a sub query SELECT LocColumn,LocDescription FROM MonitorLocationDetails WHERE LocColumn IN ('MP1','MP2','MainGate') This works ok. I have so far : SELECT

Limiting AutoIncrement to a specific range

由 泄露秘密 提交于 2019-12-12 19:32:56
问题 I am trying to create an application for work. The app will be used internally and should allow us to assign some barcode numbers to our product SKUs. I am using Visual Studio / Basic 2010 Express to build this as my very limited and beginners experience is with VS 2010 Express. I'll give a bit of information about how I see this application working and then I'll get on with my actual question: I see the app allowing us to create a new Product in the database by a user entering the SKU and

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

由 拥有回忆 提交于 2019-12-06 16:31:46
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

SQL Server Compact Edition 3.5 gives “Multiple-step operation generated errors” error for simple query

由 北战南征 提交于 2019-12-02 12:29:43
问题 I'm using a SQL Server CE database via Microsoft's OLEDB 3.5 SQL CE Driver. Here's my connection string: Provider=Microsoft.SQLSERVER.CE.OLEDB.3.5;Data Source=C:\Users\me\Desktop\test1.sdf This query works fine: SELECT Thing FROM OtherThing WHERE name = 'TextThing' This query fails: SELECT Foo FROM Stuff And this is the error I get: Multiple-step operation generated errors. Check each status value. The only structural difference in the table themselves is that one has a text primary key and

Getting Delphi 7 to play with SQL Server Compact 3.5

由 青春壹個敷衍的年華 提交于 2019-11-28 11:36:15
We have an old application that was written in Delphi 7. It is currently connected to an old Oracle Lite database that is being retired. The powers that be have chosen to move the data to a Microsoft SQL Server Compact database instead. After sepending a good amount of time moving everything over to the SQL CE database, I am now tasked with getting the Delphi application to play nice with the new databases. The people who are supposed to be smarter than I am (my boss), tell me that I should be able to simply modify the connection and everything should be back in order. However, I have been
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