Performance Between SQL Server CE 2.0 And SQL Server Mobile 2005
Oct 3, 2007
We have recently updated an application from SQL Server CE 2.0 to SQL Server Mobile 2005 and we are seeing a huge decrease in performance? Is this normal? Database query that used to take 8 or 9 seconds are now around 20 secs, the database is only about 5 MB and the two tables in this particular query have 20 rows and 14K rows respectively. The query is basically:
select * from table1 join table2 on table1.myint = table2.myint
myint is the Primary Key of table2 and I have even created an index on myint for table1, any ideas?
When I try and connecto to SQL CE I always get an invalid operation exception. I"m afraid that I did not follow the proper install for Orcas Beta 2. I can't remember if I was supposed to uninstall SQL Mobile 2005 first or not.
All I know is when I try and use my SQL CE I can't connecto to a DB / sdf file ?
Any help would be appreciated I"m just starting to use SQL CE.
I don't understand why I am having this error. It does create the database on AddSubscription() method but it is failing opening the database on Synchronise(). I have also tried uninstalling and then reinstalling all the SQL Mobile components in the following order.
I am developping a non-managed C++ application for PocketPC using a SQL Server mobile database.
The application is compiled for PocketPC 2003 and uses SQL Server Mobile v2. I use Visual Studio 2005. But I need to compile the application for Windows Mobile 5.0 devices. So I installed the WM5 SDK and had the WM5 into my project configuration.
The "ssceoledb.h" which I include incluses the "transact.h" file. But my problem is that this file is only provided with the PocketPC 2003 SDK and not in the WM5 SDK. So I cannot use the WM5 configuration project with SQL Server. I also tried with the last SQL Server Mobile 2005 (ie v3.0) and the "ssceoledb30.h" also includes "transact.h".
Did I miss something to install ? Do you know how I can resolve the problem ?
I have been experiencing some difficulties with poorly performing synchronizations using replication from SQL Server 2005 to SQL Server Mobile running on Windows Mobile 5 devices. Currently there are two main databases (each client will only use one of them), the 1st one has around 500,000 rows, and the 2nd has about 1,200,000 rows. The initial synchronization for the 1st database takes around 45 minutes, and for the 2nd, around 2.5 hours. This is quite long, but we have comforted our clients by saying that this is a one time delay, and that further synchronizations will be much quicker. Well, synchronizing the data after this is usually quite speedy, however, things get bad rather quickly when the number of changes increases.
In normal cases, the client will have at most a few thousand changes and all is well, the synchronization will typically be under a few minutes - no big deal. Once in a while though, there are a substantial number of changes to the database (from the SQL Server 2005 side), perhaps around 50,000 changes. When this happens, the synchronization process doesn't seem to ever finish (I've left it over the weekend and come back to find it still synchronizing). For the record, there seems to be a level at which the database will finish synchronizing, but be agonizingly slow - around 10,000 to 20,000 records will finish eventually (but take a few hours, at which point it's faster to just blow away the database and start again from scratch). This is obviously not acceptable, and I need to find a way to resolve this. Does anyone have any thoughts?
While on this topic, why does this synchronization process take so long anyways? The snapshot creation (even for the database with millions of rows) finishes in a couple minutes, and the actual transfer of data shouldn't take more than a few minutes. The device can't possibly be storing the database content in memory (the SDF file ends up being between 40MB and 100MB), but when I watch network activity, there tends to be an initial busy period, then a periodic and fairly small spike every few seconds until the process completes, so the connection isn't being saturated at all.
At this point, I am almost considering breaking the nice database design I have and creating combined logical records to see if reducing the number of rows may help. I'd really prefer not to have to go this route though, so if anyone has any suggestions, I'd really appreciate some feedback.
I am looking for a detailed tutorial that explains how to set-up merge replication services for a major project. I have seen all of the claims that SQL Mobile Server 2005 is able to connect to a merge publication with SQL Server 2000. However, where are the tutorials? I must have a proof of concept in a few days to quote this project. Can anybody help with this issue? Thanks!
After installing MSDE(with SP4) and SQL Server 2000 SP4 Replication Components, the SQL Server 2005 Mobile Server Tools installation fails when running the System Configuration Check with a SQL Server requirement Error.
"You must first install the Replication Components for SQL Server 2000 SP 3a or higher or the SQL Server 2005 Replication Components"
Am I getting this error because I'm using the Desktop Engine version of the SQL Server 2000??
I'm creating a prototype of a PDA app using CF.Net 2.0 and SQL Server Mobile for a prospective client and I've gone through and designed, built and populated a database using SQL Server 2005... and then realised where I really need it is on the PDA! Without going through all the pain of setting up SQL replication or writing all the code is there a way to export a 2005 database to SQL Server Mobile so it results in an .SDF file?
I know I can script each table out and run it via the SS2005 management studio when connected to a local .sdf file then copy that to the PDA but the thing is I really want to keep my test data so I don't have to re-enter it again.
TIA for any help... there must be a way to do this but I'm quite new to SQL Server Mobile and 2005.
Is there any way to measure bandwith usage during merge replication between sql server 2005 and sql server mobile 2005 running on a cradled wm5 mobile device.
Attaching the windows performance monitor to the network connection established over usb would work although I was wondering if there was something specific for this case integrated into Sql server 2005 / sql server mobile 2005 / Sql server management studio / third party tools that i could use ?
I have a central database server that is runnning on SQL 2005 standard edition and Windows server 2003 standard as OS.
I realise that I can use SQL statements to encrypt and decrypt the data inside the standard SQL.
However, how do I read and write the data via an web application coded in C#.net and is also running on the same machine?
Another issue is, I need to replicate some of the data in this SQL standard over to a SQL mobile running on a mobile device running on Windows CE 5.0.
The mobile device also needs to read and write data to the encrypted data via a C#.net application.
Question is, with all these requirements to be met, can I use AES? I know that AES is not available on Windows XP and Windows Server 2000 and I cant find AES in the .net compact framework.
how do i go about ensuring security? how do I ensure that the symmetric key is the same both on the SQL standard and SQL mobile?
I have some SQL CE database .sdf file on my handheld, and I was trying to connect to that file via SQL Server 2005 Management Studio, and it does not work. I am wondering if there is any good tool that I can use on desktop to connect to sqlce .sdf database file on my handheld?
I just want to display all the data of a Single table into a Data Grid, I know that we can drag and drop the table on to a form and datagrid is generated, but here I want to retrive those values through my code, how should i do that
I am getting following errors while running the program Error 1) Error No. 28037, MS SQL Server 2005 Evrywhere Edition Error: A request to send data to the computer running IIS has failed. For more information see HRESULT Error 2) Error No. 0, SQL Server 2005 Evrywhere Edition ADO.Net Data Provider Error: The specified table does not exist [ JobLists ].
Can anybody please tell me, where I went wrong ??? In this code anywhere else????
Note: While adding a Data Source of SQL Server 2005 Mobile Edition, I have added that .sdf file into my project, thats why I have written the Data Source as : .DbFile.sdf
@"Data Source = .DbDotNetCF.sdf";
The code is as follows:
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Data.SqlServerCe;
namespace DeviceApplication1 { public partial class Form1 : Form { string filename = @".DbDotNetCF.sdf";
private DataSet dsJobLists;
public Form1() { InitializeComponent(); }
private void DeleteDB() { if (System.IO.File.Exists(filename)) { System.IO.File.Delete(filename); } }
private void Sync() { SqlCeReplication repl = new SqlCeReplication();
if (DbDotNetCFDataSetUtil.DesignerUtil.IsRunTime()) { // TODO: Delete this line of code to remove the default AutoFill for 'dbDotNetCFDataSet.JobLists'. this.jobListsTableAdapter.Fill(this.dbDotNetCFDataSet.JobLists); } } } }
I have created a merge replication correctlly( I suppose, there were no errros) Please help
I'm trying to connect to Desktop SQL Server 2000 from Windows mobile PC Emulator (VS 2005). I need a direct connection using connection string to SQL Server 2000 through local wireless network without IIS.
Bellow is the code that I use. After executing this code I get an error on line Conn.Open(). Error says SQL Server does not exist or access denied. SQL is un and running, and I can log in using SA username from the desktop. Even if I chance IP for another SQL server in my connection string I still get the same error. There is no firewall of any kind running.
Dim connectionSTR As String = "Persist Security Info=False;Integrated Security=False;Server=192.168.0.202,1433;initial catalog=MyDB;user id=sa;password=;"
Dim Conn As SqlConnection
Conn = New SqlConnection(connectionSTR)
Conn.Open()
If Conn.State = ConnectionState.Open Then MessageBox.Show("Open") End If
About my environment: SQL Server 2000 is running on Desktop PC with Windows XP SP2. Application which I need to connect to SQL Server is in Visual Studio 2005. I execute the application in Windows Mobile PC Emulator and try to connect to SQL Server from emulator.
I'm attempting to use RDA to synchronize a pocket pc emulator with SQL Server 2005 database by following tutorial http://msdn2.microsoft.com/en-us/library/aa454892.aspx, which uses AdvWorksMobile database that comes with SQL Server 2005.
When get to testing of "To test application features " ( step 4 of the merge replication setup lab ), I am receiving SQLCe Exception errors.
ORIGINALLY, I was able to deploy an application and view the local database on the emulator, but once I clicked "InitSinc" button, I received an error.
"Failure to connect to SQL Server with provided connection information. SQL Server does not" exist, access is denied because the SQL user is not a valid user on the SQL Server, or the password is incorrect. Found this error listed in Server Agent Errors log http://technet.microsoft.com/en-us/library/ms172357.aspx, but it wasn't very helpful since it doesn't provide any suggestions on fixing the problems.
I am brand new to SQL CE Server , mobile programming and .NET framework in general so please bare with me
All the connections / security settings, etc that were set up were taken from a tutorial so I am not sure what SQLCeServer is complaining about. Reading up on the error on the web didn't help, it all pointed to making sure that the snapshot folder had correct permissions set up. I verified that MACHINENAMEUISR_MACHINENAME guest user had Read rights to the database so I don't think that piece is the problem. Otherwise ,Merge publication has been setup in Microsoft SQL Server Management Studio by following the tutorial.
I am trying to run this sync on my home pc so there should be no issues with any user permissions
I have IIS installed
I did NOT have SQL Server Agent running in management studio at this time
I am trying to run this tutorial on an XP machine, which is my regular home PC so I dont think there are any special networking settings to consider
I am able to hit http://localhost/AdvWorksMobile/sqlcesa30.dll from my pc OK, but when I try to hit it from a cradled emulator ( after replacing "localhost" with "MACHINE_NAME" ), Internet Explorer on the emulator gives me a "Cannot Connect With Current Settings" error message. This part wasn't part of tutorial but decided so not sure if I am supposed to be able to hit it from my emulator..so I am not sure if the fact that I can't hit it is related to the problem. AFTER STARTING SQL SERVER AGENTin Microsoft SQL Server Management Studio, I killed the application, and after relaunching it, it hits "The Specified table does not exist [Vendor]" error. This time it doesn't even launch first - that is I dont even get to pressing "InitSinc" button. Debugger is showing that this error is hit on the following line in AdvWorksMobile.AddWorksDataSetTableAdapters
int returnValue = this.Adapter.Fill(dataTable);
I am not sure why the errors changed on me after starting SQL Server Agent. What can I do to fix this connection problem?
I am developing a mobile application in which i have to create a database..
My database contains relationships between its tables.. I would like to know what is the best solution for developing the database?? SQL mobile edition or RMS!!!
If you say RMS, how should i create the relationships between my tables??
Could someone pl explain how is SQL Server mobile 2005 licensed. Do we need to buy license for each device ? or CAL?
In my app, I need a database which is accessed by .net compact framework app. synchronization is also done by our own app, no direct communication from sql server mobile to sql server db. we have a server side .net app which talks to the sql server and a windows mobile app which talks to the sql mobile db, these two .net apps talk to each other like:
sql server mobile db <--->.net compact framework app <--->.net desktop app <-->sql server 2005
Needless to say, there would be multiple devices having the above setup. However only one desktop side app and database. In this scenario, how would licensing be calculated?
I have a working Pocket PC 2003 app that uses RDA to exchange data with SQL Server 2000. I'm attempting to port it to a Windows CE 5.0 device. (I'll be porting to Mobile 5 in the near future, but the gadget I have at the moment is CE).
I installed SQL Server 2005 Mobile Edition on the computer running IIS according to package directions, and used the wizard to set up a virtual directory with sscesa30.dll.
The directory I was previously using with sscesa20.dll is still there, and still works.
I set up the virtual directory to use basic authentication without SSL. (I know that's not advisable). I have confirmed that I can reach the URL using the username and password I supplied to the wizard.
When I try to pull data I get the following:
------------------- SQL CE Exception Error Code: 80004005 Message : An error has occurred on the computer running IIS. Try restarting the IIS server. Minor Err.: 28022 Source : Microsoft SQL Server 2005 Mobile Edition
I have tried restarting IIS without effect. Any clues?
This very same string, and variations of it, work in a vs2005 winforms app, but not a windows mobile 5. I'm (obviously) using system.data.sqlclient. MS documentation says it's supported on both platforms with no syntax changes. Any suggestions?
I have use this guide to make a application for windows mobile 5.0. http://msdn.microsoft.com/vstudio/tour/vs2005_guided_tour/VS2005pro/Smart_Client/DataBinder.htm Everything is work. I can add, remove data in the dataset. But i can't update the sql server database. can somebody tell me whats wrong? Nitro.
I Have a smart device application developed in VS 2003 (VB.Net) and Sql server ce 2.0. Now I have upgraded the application to VS 2005 (VB.Net). My question is, Can the Application developed in VS 2005 can communicate with Sql server ce 2.0 and Sql server 2000 sp4 or Do I need to change the Sql server ce 2.0 to sql server 3.0 to work with windows Mobile 5 and Pocket PC 2003 SE devices ?
I'm currently investigating the feasibility of having SQL Mobile on a number of devices running Windows CE. These devices will have to synchronize with the server (either using merge replication or RDA) over GPRS. The problem I have is that some of these devices will never be online. Is there are a way of synching these offline devices? The model I had in mind was using a USB key (or some other storage device) to download the latest updates from an online device and transferring this data to the offline device, and vice versa e.g. from offline to online and then merging. Is this feasible?
I have a question: is the SQL Server 2005 mobile edition free? or is it necessary to buy a licence when i use it combinated with a comercial program which i have delevoped by myself and i sell it?
I have a Fujitsu-Siemens LOOX 520 running WM 5 version 5.1.70 on which I am trying to create a Server 2005 Mobile database.
I have installed the following files on the Pocket PC after a hard reset to make sure the unit was in its vanilla state:
NETCFv2.wm.armv4i.cab
sqlce30.dev.ENU.ppc.wce5.armv4i.CAB
sqlce30.ppc.wce5.armv4i.CAB
sqlce30.repl.ppc.wce5.armv4i.CAB
All the files appeared to succesfully install. Connecting to the device in VS2005 works with no problems. Creating a small test app in VB.NET and running it on the device works no problems, so the device is satisfactorily connected to VS2005.
My problem is this:
When I try to create an SQL Server 2005 Mobile database on the device using Add Connection under the Data Sources window in Visual Studio 2005 Professional (RTM version), I get the following error:
"Microsoft SQL Server 2005 Mobile Edition and/or .NET Compact Framework v2.0 is not properly installed on your mobile device or the device is not responding."
Trying the same thing in Microsoft SQL Server Management Studio gives the same error, but a little bit of extra information:
"Microsoft SQL Server 2005 Mobile Edition and/or .NET Compact Framework v2.0 is not properly installed on your mobile device or the device is not responding. (SQL Server Mobile Edition ADO.NET Data Provider)"
As far as I can see, everything IS installed OK, so why is VS2005 not working?
I am looking for a reporting software to create reports (Invoices, Receipts) for PocketPC 2003 using Visual Studio 2005 and SQL Server 2005 Mobile Edition. Any recommendations will be appreciated.
