Using Access As A Frontend For Sql Compact Edition
May 9, 2007
I have a ms acssess db acting as a frontend to a Sql Server 2005 db. I have need to have the db setup as a standalone to distribute with the application for times when the 2005 server is unreachable. I have a created CE db that replicates the 2005 version.
What I want to do now is put the CE db on the desktop with the MS access frontend. Based on a user's preferences the connection would direct to the CE version.
The CE engine is loaded on the desktop, I have modified the ADODb connection string to point to the CE db. When I run it I get an error that says: "The provider can't be found. It may not be properly installed."
Here's the connection string:cnxn: ConnectionString = "Provider=microsoft.sqlserver.mobile.oledb.3.1;Data Source=spcd.sdf;User ID=;Password=;"
Am I trying to do something that just isn't going to happen?
Rick
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Apr 10, 2008
Is there a way to import the table definitions and data from an Access database into the 3.5 compact edition? I have no clue where to start. I have a .Net application that uses an Access database to store data. I want to create a windows mobile application for collecting the data and syncing with the PC application. Is the 3.5 compact edition the way to go? How do I get started? I don't even know how to open the interface for the database.
I'm certainly no newbie to programming, but the SQL Server and Windows Mobile stuff is like starting all over in some ways.
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Nov 7, 2007
Is there any way to convert an Access or SQL server 2005 database to SQL server 2005 compact edition database??
Thank you very much!!
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May 5, 2008
Hello,
we've got a SQL Server 2005 which replicates with an SQL Server Compact 3.5. Every 10 to 20 synchronisations we're getting the error mentioned above. A Soft reset of the device helps to make the synchronization working again.
Why is this error happening and how can we resolve this?
BTW, we've also running system that replicates with an SQL Server Compact 3.0 without having this problems.
Thanks,
Markus
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Mar 11, 2008
Hi there,
everything is ok for first run. but i leave the program relogin
than that error occured ppc2003 second edition devices. Windows mobile 5.0 device works fine.
can anybody help me?
VS2005 ver 8.0.50727
SSCE31VSTools-ENU.exe loaded
SSCE31SDK-ENU.msi loaded
machine 1
SQL 2005 loaded
machine 2
http://192.168.20.22/ssce/sqlcesa30.dll
"Microsoft SQL Server Compact Edition Server Agent" looks fine
pocket pc side
C:Program FilesMicrosoft SQL Server Compact Editionv3.1SDKinwce400armv4
.net cf 2.0 sp2
sqlce30.dev.ENU.ppc.wce4.armv4.CAB
sqlce30.ppc.wce4.armv4.CAB
sqlce30.repl.ppc.wce4.armv4.CAB installed too.
my code
---------------------------------------------
Dim RdaStr As String = "Provider=SQLOLEDB; Data Source=" + Server + ";Initial Catalog=" + DataBase + ";Integrated Security=SSPI"
Dim rda As SqlCeRemoteDataAccess
Try
rda = New SqlCeRemoteDataAccess "THIS LINE GIVES ME THAT ERROR
Catch ex As Exception
MsgBox(ex.ToString)
Application.Exit()
End Try
Try
rda.InternetLogin = [String].Empty
rda.InternetPassword = [String].Empty
rda.InternetUrl = "http://" + IP_no + "/ssce/sqlcesa30.dll"
rda.LocalConnectionString = ConnectString
Catch ex As Exception
MsgBox("Bağlantı hatası..")
Application.Exit()
End Try
------------------------------------------------------------------------------
i added the following code to very beginning of my code too.
that code lock my device
Declare Function LoadLibrary Lib "coredll" Alias "LoadLibrary" (ByVal lpLibFileName As String) As IntPtr
Dim pt As IntPtr
pt = LoadLibrary("\windowssqlceca30.dll")
pt = LoadLibrary("\windowssqlceoledb30.dll")
pt = LoadLibrary(\windowssqlcecompact30.dll)
-----------------------------------------------------------------------------
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Jul 26, 2007
Hello,
I just installed SQL Server Compact Edition, since I am considering using it instead of SQL Server Express for a local database in my application. The documentation mentioned that I could use SQL Server Management Studio Express to connect to the Compact Edition and create and manipulate databases.
To try to connect, I run Management Studio and bring up the "Connect to Server" dialog. Unfortunately, the pull-down list of "Server name"s does not include the SQL Server Compact Edition server. I do not know how to type in the server name manually, so I cannot connect.
To install Compact Edition, I downloaded it and ran "SQLServerCE31-EN.msi". This installed, and I assume registered, a number of DLLs in "C:Program FilesMicrosoft SQL Server Compact Editionv3.1".
Is there perhaps an additional step that I left out to complete the installation?
Might I need an upgrade to some other components? My Management Studio Version is:
- Microsoft SQL Server Management Studio Express 9.00.2047.00
I would appreciate any help you can provide.
Thank you,
WTW
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Mar 5, 2007
hi can you help me?
i need to make an access frontend to read specific queries from my sql server 2005 express backend.
how can i do this?
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Sep 27, 2007
I am attempting to use the SQL Server 2008 Developer Edition (Management Studio) to create/manage a Compact Edition 3.5 database. My problem is that I cannot even create/open the compact database in Management Studio. Any help would be GREATLY appreciated. TIA
Problem Creating the Compact Database:
Open 2008 Management Studio
From menu choose File | Connect Object Explorer...
Choose SQL Server Compact Edition as the Server type.
Choose <New Database...> as the Database file.
Browse to folder where file will be created (C:MyDatabase#1.sdf was used in my example)
Leave all other field as default selections OR make changes, either way it does not work.
Click OK.
At this point the OK button just becomes disabled and nothing happens.
Problem Opening An Existing Compact Database:
Open 2008 Management Studio
From menu choose File | Connect Object Explorer...
Choose SQL Server Compact Edition as the Server type.
Choose <Browse for more...> as the Database file and locate a ".sdf" file that I created using VS2008.
Enter password, if any.
Click OK.
The following exception is displayed:
TITLE: Connect to Server
------------------------------
Cannot connect to C:Documents and SettingsdarrinbMy DocumentsVisual Studio 2008ProjectsTestSQLCompactEdition35TestSQLCompactEdition35AFS.sdf.
------------------------------
ADDITIONAL INFORMATION: Failed to retrieve data for this request. (Microsoft.SqlServer.SmoEnum) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&LinkId=20476
------------------------------
Could not load file or assembly 'Microsoft.SqlServerCe.Enumerator, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) (mscorlib)
------------------------------
BUTTONS: OK
------------------------------
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Jun 22, 2004
Hi,
we are having performance problems with a pure MS Access database across a WAN.
As a test we want to setup a MSSQL server , move the data to the server and run the MS Access clients through a ODBC interface.
The application uses much SQL methods to get the data ( docmd.runsql commands ). Only a few native queries are used.
Will this help the performance ?
If not , what do i need to do to get a better performance ?
It is a lot of work to build a new application so if it is possible whith the existing code it would be very nice .
Thanks in advance.
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Dec 2, 2006
I have a database with a sql backend and an access frontend. I put it in a folder on the network for users to access. First, they were getting errors like not being able to access the database if someone else had it open and not being able to perform certain functionality. It was suggested that i put a mde on each of the users pc. i gave them all access to their own front ends on the folder because they use different pcs. this solved the problem. however, i need a way to perform updates without manually creating mdes for every user. i used to work for a co that there was one mde was put into a folder on the network with a config file. The users access the database through CITRIX. Whenever they accessed the shortcut on the server, it created the users their own front end. Whenever we need to provide updates, we simply made a new mde from the mdb and whenever the user accessed the database again, they would have the latest mde and it would created an update frontend for the user. Does anyone know of such an utility or know what I am referring too? I encounted several suggestions like a batch file; but they refer to putting the file and the mde on each users pc. This is not how i'm set up. Thanks
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Nov 14, 2007
Hello everybody,
Wrote before but did not go any answer , try again.
I have two question about SQL compact edition (SQLCE) (.sdf) and SQL Express edition (SQLED) (.mdf).
I have been testing SQLED and have many tables and data in it.
I want know to test SQLCD and hopefully be able to communicate with the SQLED.
For this reason I was wondering the following:
1. IIs it possible to move all the tables and it constratints into the SQLCE from the SQED ?
2. Another possibility I was thinking about was to use some tables in the SQLED in the SQLCE and move data between these two databases through RDA .
However, does this two versions aloud this kind of communciation...between them....?
Thanks in forehand,
Matilde
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Jun 15, 2001
Hello. I have an Access 97 frontend and a SQL 7 backend. When I try to open up the linked SQL tables in the frontend I recieve the error " This recordset is not updatable" from Access. I have the permissions in SQL set at this point to public having all permissions but it still does not change my problem. Does anyone know the answer?
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Nov 9, 2005
Hi All,
I have recently migrated from Access to SQL Server. I have come across a strange problem. I have got a table in my database whihc is not linked to any other table, but does include data and is used from time to time for reports. It is more used as a sort of lookup table. Now I had the frontend in Access and I have retained it. So I connect all the SQL Server tables via ODBC to Access. The problem with this table is for some reason it wont allow to add new records on Access side. You can just view the contents, but cannot add anything to it e.g a new record, etc. I tried giving explicit permissions of Select, Insert, update, etc. but still no result. There are other look up tables as well, that have the same problem. Can anybody tell me why this is so and is there any way to fix it?
Regards:
Prathmesh
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Feb 1, 2008
My company is currently using access to manage equipment in 4-5 different locations. I want to move this to a sql database and have a front-end to do the same thing access is doing now.
Should I use access as a front-end or should I develop a custom front end using vb?
Just a fyi
5-7 tables
7-9 queries
10 or so reports and the front end is currently a switchboard that links to many other forms.
I'm looking for advice.
TIA
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Feb 23, 2006
I am creating a Access frontend to some SQL Server Tables. One of these tables has an int type field and several money type fields. I am trying to populate the table based on text boxes on an Access form. Because of other reasons instead of just using the SQL table as the record source of the form I am using "INSERT INTO" statements to update the data.
Here is my problem if I leave the textfields that are supposed to populate the int and money fields blank I get an syntax error message on the INSERT statement. If I populate the textfields with a 0 the INSERT works fine.
The int field and money fields are defined to accept nulls so why is the blank textfield generating an error message instead of inserting a null into the table?
Any help or guidance would be greatly appreciated.
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Jan 27, 2006
I have a website which runs off a Access database which I am currentlyconverting to sql server database. I would like to still use my accessfront end for reporting and queries..I created an odbc connection on my computer to the remote sql serverand created a link in access to my sql server tables. All my report andQueries run fine I just have one problem it keeps on prompting me forther password of the remote sqlserver database. I check the odbcconnection and I see the password is not saved in there even though Iput it in. Is there a way I can have the password saved. I do not wantkeep on having to enter the password.
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Sep 26, 2005
Ok, little frustrated hence the excessive exclamation points.
I'm designing a database in access to use a sql backend. Table structures are setup and am creating a view to join multiple tables together for data entry purposes. Tables are joined properly but when I add more than one join, ie adding more than two tables, I can't add records!?!
I checked the joins, it's not the table, since if I add one table its ok, remove table, add another table and that works, but when I add both tables together, it prevents me from adding records!
And another thing, when I have just two tables joined together and add a record, it comes up with this save changes, drop changes or cancel thingie!!! WTF!!!?
Is there something simple i'm missing or is it my table structure????
Thanks in advance!
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Jan 23, 2004
Hi, this is my first post (hopefully of many) on this board. Just wanted to say a quick hello before I dive into my question. :)
As the title suggested, I have to develop a MS Access form app (yes, it has to be Access - I know it sucks) that will post and query data to and from a remote SQL Server db. While I have no problem linking the two through the default ODBC drivers, my question is security. Some (actually most all) of the data being passed back and forth is sensative information, and I would like to know the best way to keep it safe.
If anybody has any suggestions, instructions, or can redirect me to a good FAQ site on the subject, I would be most appreciative. I have already done a search on these forums for an answer, but have sadly come up short.
Thanks to all in advance!
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Dec 27, 2007
I have a sql server 2005 db.
Is there anyway I can link access to be used as a frontend by my client for viewing the data?
is this possible through linked table manager?
Please advise?
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Jan 7, 2008
Hi,
We are new Access users and trying to take our database live...here are some of the problems we're facing.
When we split our Access database into a Backend and Frontends, a couple of strange things happened in the Frontend:
1.) When we run our queries, multiple copies of the same record are displayed (this is wrong).
2.) When we look at those queries in design view, the field names are preceded by Expr1, Expr2, Expr3, etc.
We have a large number of queries. How can we fix this problem?
Also, if anyone knows any websites or resources that can help us understand what things like Expr1 mean (a reference) that would be helpful too!
Thank You!!!
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Jan 7, 2008
Hi,
We are not a very advanced group of access users and are trying to split our database for a research study...here is our question:
When we split our Access database into a Backend and Frontends, a couple of strange things happened in the Frontend:
1.) When we run our queries, multiple copies of the same record are displayed (this is wrong).
2.) When we look at those queries in design view, the field names are preceded by Expr1, Expr2, Expr3, etc.
We have a large number of queries. How can we fix this problem?
Also if anyone has a good source for trouble shooting this or simmilar difficulties we'd appriciate any spots or advice.
Thanks!
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Aug 19, 2007
Hello
I recently downloaded the sql mobile edition, and then I found out about the compact edition.
I understand that these are relational lite version of sql server that can run on mobile devices.
However, what is the difference between the CF and mobile edition? Why should I choice one over the other?
I have just heard about sql everywhere, seems there are all these edtions and how would you choice the right tool for the right job?
Many thanks if someone could explain further,
Steve
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Dec 11, 2007
Hello,
there are some limitations in SQL Server 2005 Mobile Edition - e.g. there is no TRUNCATE TABLE statement, the UPDATE .. FROM clause is not allowed etc. Are these limitations in Compact Edition too? Is T-SQL in these editions functionally equal or different? Is there any comparison of T-SQL features in both editions?
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Oct 5, 2007
I'm currently looking at adding a database to my company's WinCE 4.2 -based device, running applications coded with embedded CE 4.0. We want to start tracking potentially large quantities of user data (10K-30K 500 byte records) and are looking at a database engine to support this. The database would reside on the device although we would potentially dump the data from the devices to a central workstation that would be used to pull reports about the data across multiple devices. SQL Server Compact Edition sounds like a possible solution, but I'm unclear if it's supported on CE 4.2 or how to install it if it is. It's clearly supported on CE 5.0, but it may be a while before we upgrade to CE 5.0 or 6.0. I've seen references that say that SQL Server Compact Edition is the same as SQL Server Mobile Edition, and references that Mobile Edition is supported on CE 4.2, but I'm unclear if I can install and use SQL Server Compact Edition on CE 4.2 or if I'm on a wild goose chase. If not, can I use SQL Server Mobile Edition and migrate to SQL Server Compact Edition when we upgrade CE to 5.0 or 6.0? If not Mobile Edition, what about Microsoft SQL Server CE 2.0? Is that going too far back in the archives?
Thanks for any guidance/enlightenment you can offer.
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Feb 12, 2007
I am trying to make a simple example like sql management studio but stuck in the get table names part :) in first step. are there any easy way to get just table names from sdf file ?
I have tried to use SMO but no success.
Regards.
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Sep 25, 2007
I am writing an application that is designed for the desktop, or small group (3 or less) desktops. The application is being deployed using the Cassini web server as a complete "embedded" solution. I wanted to use SQL Server Compact because of its small footprint and because of the synchronization capabilities with SQLServer. Also, it is very easy to deploy vs. SQL Server Express. The idea behind this APP is that someone might use it locally and then decide to subscribe to the service and then connect the same application to a web services application.
That being said, and with knowledge of Microsoft's stance on SQL Compact under ASP.NET, I have most everything working and it works great except for one thing. When I add a SQLDataSource to the page and set the connection string to my file and the DataProvider to System.Data.SqlServerCe and then bind a data grid to the SQLDataSource, it runs fine on my development machine, but when I deploy to my clean test machine, I get an error when the page loads saying:
Unable to find the requested .Net Framework Data Provider. It may not be installed.
I can create a dataset in code (in fact,in several other places I do) and it works fine. It is just the SQLDataSource(s) that are throwing this error. I have a copy of System.Data.SqlServerCe.dll in the bin folder and I have all of the compact DLL's in the bin folder as well. I can't figure out what I need to do. I also have a reference to the System.Data.SqlServerCe in the web.config file.
Can anyone help?
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Sep 26, 2007
I am using SQL Server Compact Edition under ASP.NET. I am aware of the limitations and warnings from Microsoft for SSCE under ASP.NET, but this app is designed as a desktop deployed ASP.NET application running under the Cassini web browser. I wanted to use SQL Server Compact because of the RDA capabilities with SQL Server without the overhead of installing SQL Server Express. There would be 1-3 users at most running the application. SSCE seemed to make the most sense.
That being said, I have everything working fine except for this. I have added several SQLDataSource controls to several web forms and then I have GridViews bound to these controls. I like using the controls because of the built in sorting, grouping and updating I can do. When I run this on my development machine, it runs fine. When I move to one of my clean test machines and install the app, the SQLDataSouce controls throw the following error:
Unable to find the requested .Net Framework Data Provider. It may not be installed
I have the System.Data.SqlServerCe.dll in the bin folder along with all of the files from the the SQLServer Compact 3.1 install, a reference to it in the web.config file etc. In fact, I have several other database related datasets and tableadapters that are created throughout the application and they all work fine and can access and display data from my sdf file. It seems to only be with the SQLDataSource controls.
Any help would be greatly appreciated.
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Jun 4, 2008
I'm trying to start an application in C# with visual Studio 2008 and I want to connect it to a SQL CE 3.5 Database (local .sdf file).
I only found samples or How-to guides that use the wizard to add the datasource and the way dragging the dataset to the form. All things binded to the database where you don't have to do coding.
I don't want to have the binding navigator bar, I just want to use text box, date picker and buttons and Save that to the database myself. That way I think it will be more easy for me to validate or manipulate data before the insertion in the DB.
Some time ago a make an ASP.net that was doing same kind of thing with an Access DB...
Hope this can help to show what i really want...
(sorry for my bad english....)
Nick
Code Snippet
Private Sub btnAskSql_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAskSql.Click
lblMsg.Text = ""
Dim MyDS As New DataSet
'txtRequest.Text is a SQL command like Select * from.....
MyDS = SQLRequest(txtRequest.Text)
Try
DG01.DataSource = MyDS.Tables(0).DefaultView
DG01.DataKeyField = "ID"
DG01.DataBind()
Catch ex As Exception
lblMsg.Text = Err.Description
Finally
End Try
End Sub
Function SQLRequest(ByVal TheRequest As String) As DataSet
Dim _Con As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Ole DB Services=-4; Data Source=" & Server.MapPath("Gifts.mdb") & ";")
Dim selectCMD As OleDbCommand = New OleDbCommand(TheRequest, _Con)
selectCMD.CommandTimeout = 30
Dim custDA As OleDbDataAdapter = New OleDbDataAdapter
custDA.SelectCommand = selectCMD
Dim TheDS1 As New DataSet
Try
custDA.Fill(TheDS1, "Request")
Catch ex As Exception
'oups
lblMsg.Text = Err.Description
Finally
_Con.Close()
End Try
Return TheDS1
End Function
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Mar 18, 2008
Hi all.
We are developing a desktop windows forms app that uses tha database as storage for application configuration.
It may be used by one user locally OR used locally by multiple but sharing the database.
Now, i'm really sure that I have read that sharing the .sdf file over a network is supported and thus have started developing against the 3.5 compact db (sdf file).
But when testing this scenario we get a message that sharing over network is not supported. I'm really surprised and frankly puzzled since I know I have read about this being supported.
So, can someone more into this subject exlpain to this to me? Is it supported, and if not, should we use the express version instead?
Also, if we have to change strategy, is there an easy migration path regarding development (app. is not even in beta stage so no migrations will be necessary with customers.).
Thankful for any help since this might cause a lot of extra work...
If this leads down the synchronization path, could someone please explain how this is set up. Is it one "master" that acts as a publisher?
If we would like to have the solution where several users access the same db-file (be it sdf or mdf), do we have any choice here?
/Regards
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Feb 7, 2007
i had read information about sce and i had not unsderstood a little thing:
is it possible or not to use a dataset with that version of sql server? i have a class that access the database with some functions and one of then return a dataset. the dataset is not to be used because it does not make sense with sql server compact edition or it cannot by use at all cause sql server compact edition does not support it?
thkx and by the way i think that it's a great product!
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Nov 21, 2006
Is it possible to run SQL Server Compact Edition as a standalone application from a DVD?
i.e. it would not leave anything installed on the users computer after the DVD was ejected.
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Jul 24, 2007
Dear all, Anybody knows where to download the beta release of SQL Compact Edition 3.5. Please provide the URL to download this 3.5 of SQL CE. Thanks Gops Sofist India gopalan@sofist.com
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Jan 9, 2007
Does the new SQL server Compact edition RC1 (release in Dec 2006) replace the Microsoft SQL Server 2005 Mobile Edition Device SDK?
OR is this an additional database for specific requirements.
Currently developing against MS SQL Server 2005 Mobile Edition Device SDK;; if I switch to the Compact edition; is there a migration wiarzrd or Upgrade wizard available?
-jawahar
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