Debugging Symbols For The SQLCE Dlls While Developing Native Applications
Jun 26, 2007
Hi,
I am developing a native C++ application using SQLCE (.NET is not a current option). Am having a problem while using multiple accessors for multiple blobs in a table. After I read the data for the first blob & try to read the data for the second one, I get an error in one of the dlls (something about using heap data that was freed). Where can I get symbol data so that I can use something like Windbg to resolve my problem.
At the moment I am working on an asp.net 2.0 application where we use sql server 2005 as database server. We are building this web application with 5 developers in paralel and we noticed that when one developer is debugging the application (hanging in a breakpoint), other developers get a sql time-out exception.
Yes we are using Transactions (System.Transactions namespace) but we have totally no idea why this side-effect is occuring.
I have written a very basic C# console test app to check the performance and reliability of SQLCE on Windows CE 5.0 (source code below). Running this on different Windows CE 5.0 devices, I always get a 0xc0000005 native exception error when reaching 25592 inserts. It doesn't matter whether the database is empty or not when the test is run, it always fails at that exact number of inserts. Given that I would expect a managed application not to be able to generate native exceptions anyway, and can't really see any reason why it would in this case, I'm at a bit of a loss as to what's going wrong... Any ideas?
Using: VS2005 w/ SP1 Windows CE 5.0 (on custom SH4 platform and HTC WM5 smartphone) .NET CF 2.0 w/ SP1 and post SP1 patch SQLCE 3.0.3600.0
TIA
PS. The same code (with some SQLCE 3.0 specific bits removed - version and result set for checking table existence) works perfectly under .NET CF 1.0 and SQLCE 2.0).
Source code:
using System.Data; using System.Data.SqlServerCe;
namespace TestDB { class Program { static void Main(string[] args) { SqlCeConnection sqlConnection = new SqlCeConnection(); SqlCeCommand sqlCommand = sqlConnection.CreateCommand(); SqlCeResultSet sqlResult;
Hi, I have developed a Smart Device Application using VB.NET 2003 on top of Windows Mobile 2003 platform which is running on Symbol PPT 8846, a model used in our construction sites for gathering data bar-coded on Pipes, trucks...etc. This application uses SQL CE as its back-end database and since its difficult to cover our sites with WI-FI coverage, most of the time the application is running offline. As for that, on a daily basis, synchronization is done in the offices before the system is released into sites. I have been doing several implementations in several projects and till now everything is running fine but until I got a native exception on exporting the data back into the server database. The server database or main database is using Fox Pro and this is what led me to build a Web Service for communication between SQL CE and Fox Pro. Anyways, going back to that mysterious exception, I did some of my intensive debug on what caused it. As a start, I went through the code line by line to check if there was a memory leak from P/Invokes; but I was shocked that the exception was raised from "SQLCEDataAdapter.Fill(Dataset)" function. First thought came to mind was to hard reset and to re-install the application but no luck. Since it was about SQLCE, I moved towards checking the data found in the SQLCE database and tried to de-fragment the data found under the table needed for export. What I mean by de-fragmenting is that I grouped the data under different classes or families and created different tables depending on these classes. Then tried exporting again and Bingo the data was exported except one record...That was so weird!! huh? (The database had 515 records) So I went for the Query Analyzer to try to view that record but no hope, it was taking too long to view the record, I just left it for more than 15 minutes and still no response from the Analyzer...it was so strange since there was only one record in that table!!!?!!! As going further, I was so curious why this record causing that native and inability to be viewed by the Analyzer?? I did testing on the column-level of that record and found out that you can view all the columns except two : nvarchar(200) and nvarchar (20)....I was able to resolve this problem with an SQL statement to update both columns with empty or dummy values...!!!!! But after this resolution, I really don't know how it could be controlled later on!! and why it happened?? I would be glad if anyone can give me any advise on why such problem popped out and especially on the column-level in SQL CE?? And how to overcome it?
Thanks for your time and effort,
Looking forward to hear from as soon as possible...
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 have found that when I'm debugging a custom component in BIDS that I've created in another instance of Visual Studio, every time I rebuild the component I have to shutdown and restart BIDS and then reattach to the BIDS process. Which is pretty time consuming... And if I find a small error in my custom component when debugging then I don't seem to be allowed to make any changes to the code unless I stop debugging and go through the process above.
Am I missing something here? Or do I really have to manually go through these steps every time I want to change code in the component I'm debugging?
Can I automate the process with MSBuild or NAnt? If so, is there an example of this anywhere?
I am currently upgrading our ppc app (written in .net 2003) to .net 2005 and from sqlce 2.0 to 3.0. The new application runs out memory(storage) when handling lots of data transactions (both in case of using sqlcedatareader, and dataset ). There is no memory leak issue here, sqlce 3.0 simply uses a lot more (3 times more) memory than sqlce 2.0.
Our applicaton runs fine using sqlce 2.0 and .net 2003, but fail due to memory shortage
with the upgrades(which has the same code). Anyone can shed some lights on this issue?
I require Api call or any ways to find the installed path of SQL SERVER 2005.
This is required becauses you application register set of extended procedures. As part of SQL SERVER 2005 we found that the dll has to be registered with full path in general <b> "c:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLBinn" </b> since customers may install the server in any drive , i require to find the installed path.
I`m developing a web site with many grids, these grids obtains the data from a SQL Server 2005 DB which data is stored in XML Format... many times when the page load is done, this message appears :
File or assembly name Microsoft.Data.SqlXml, or one of its dependencies, was not found.
But when I access a second time to the same page, the data is displayed normally..
Can anyone tell me is it possible to register and access .NET dlls from Stored procedures and how to call those methods in those dlls from Stored procedures
Is there a way to use a custom component programmatically (I'm using C# to create and run my packages) without installing a compiled .dll of the class into the SQL folders and the GAC? For instance, can I instantiate my custom component and somehow pass it to be used in a task in my code.
Does anyone have any instructions on how to go about uprading a .sdf file from sqlce 2.0 to sqlce 3.0?
I found this on an msdn website (link: http://www.microsoft.com/sql/editions/sqlmobile/upgrading.mspx) but as you can see its very lacking on detail. (I included the link and content referring to upgrading the database files so you won't have to go to the link to see the part referring to upgrading the database.) I tried to run the upgrade.exe on my device but it doesn't explain how you're supposed to point it to the .sdf that you are trying to update. Here is the content on the above web page.
Upgrading Database Files You can upgrade a database created with an earlier version of SQL Server CE 2.0 to a database created with SQL Server Mobile by using the SQL Server Mobile Database Upgrade tool (upgrade.exe). The Database Upgrade tool runs on a smart device.
When you run the SQL Server Mobile Database Upgrade tool, the new SQL Server Mobile database is created on the smart device. The new database, with the file name extension .sdf, contains all the data that was in the source database. You need to reinitialize the upgraded database to continue using it for replication.
Note: If you are using replication or remote data access (RDA) as a connectivity solution before upgrading to SQL Server Mobile, you must synchronize the source SQL Server CE database (subscription database) with the SQL Server database (Publisher). The reason for synchronizing before upgrading to SQL Server Mobile is to ensure that any changes that exist in the tables on the SQL Server CE database are updated on the SQL Server database, because after the upgrade you must resubscribe or repull using the new database.
I'm just wondering what the effect of including a form in a dll would have on a system? I created a dll that actually has a hidden form in it and is called from a stored procedure using SQL Server 2000. I needed some of the functionality of the richTextBox control, only I didn't want to actually display the form with the box on it. This seems to work when called from a stored procedure (the method called returns correct values and the form never shows up on the server), but are there any inherent problems with this I'm not aware of? I wouldn't think it would be a memory leak and we're not too worried about security. I'm using this as a shortcut around having to write something that converts rich text into plain text and allows us to search the document for keywords. I know this might be a ghetto way around it, but it seems to work.
I am developing a Script Task for my SSIS package to transfer a file via FTP over SSH (SFTP). I have a nice set of Assemblies/DLLs (purchased from IP*Works) that gives me the added functionality of SSH.
To even get Visual Studio for Applications to see it in the reference list, I copied the DLL (nsoftware.IPWorksSSH.Sftp.dll) to the C:WINDOWSMicrosoft.NETFrameworkv2.0.50727 directory, added it in the references for the script, and added the Imports nsoftware.IPWorksSSH.Sftp line in the script.
As described in: http://sqljunkies.com/WebLog/knight_reign/archive/2005/07/07/16018.aspx
Yet, when I try to run the SSIS package I get a DTS Script Task Runtime Error:
Could not load file or assembly 'nsoftware.IPWorksSSH.Sftp, Version=7.1.2203.0, Culture=neutral, PublicKeyToken=cdc168f89cffe9cf' or one of its dependencies. The system cannot find the file specified.
I tried to move the DLL to the bin directory in the SSIS Package, but that did not help.
Hi All,I am trying to insert symbols in a field of a table. I am using the datatype nvarchar for the field.However when i tried to insert a statement with the symbol pi, it comes out as following:(A) 100? cm2 (B) 140? cm2 (C) 200? cm2All the pi symbol are converted to ?.Can ne 1 tell me how i can store such strings in the field.Thanks
I am creating a Project schedule using a stored procedure. The character is currently set to '>'. I would like to replace this with the 'black square', character code '25A0'. Is this possible? Here's part of my code: QBar = CASE WHEN EstStartDate >= @ZFromDate AND EstDeliveryDate <= @ZToDate THEN Replicate(' ',Datediff(day,@ZFromDate,EstStartDate)) + Replicate('>',Datediff(day,EstStartDate,EstDeliveryDate) + 1)
Hi All, I am trying to insert symbols in a field of a table.
I am using the datatype nvarchar for the field. However when i tried to insert a statement with the symbol pi, it comes out as following: (A) 100? cm2 (B) 140? cm2 (C) 200? cm2
All the pi symbol are converted to ?.
Can ne 1 tell me how i can store such strings in the field.
Here's the output when I type .reload in windbg (minus warning messages):
20:266> .reload
DBGHELP: C:Program FilesMicrosoft Visual Studio 8SmartDevicesSDKSQL ServerMobilev3.0wce500armv4isqlceqp30.dll - OK DBGENG: C:Program FilesMicrosoft Visual Studio 8SmartDevicesSDKSQL ServerMobilev3.0wce500armv4isqlceqp30.dll - Mapped image memory SYMSRV: C:SDKsMS_SymbolFilessqlceqp30.pdb79F8C010CB11435E99474335288548601sqlceqp30.pdb not found SYMSRV: C:SDKsMS_SymbolFilessqlceqp30.pdb79F8C010CB11435E99474335288548601sqlceqp30.pdb not found SYMSRV: http://msdl.microsoft.com/download/symbols/sqlceqp30.pdb/79F8C010CB11435E99474335288548601/sqlceqp30.pdb not found DBGHELP: sqlceqp30.pdb - file not found *** ERROR: Symbol file could not be found. Defaulted to export symbols for sqlceqp30.dll - DBGHELP: sqlceqp30 - export symbols
Why can't it find the .pdb file on the symbol server and where else should I look?
I started to working on a project. I dont have a lot experiences except basic information. I just want to ask can I use symbols in primary key column like 2015/1234 etc. for file numbers. These are file numbers and must be unique so i decided to make them primary keys but im not sure that i can use symbols.
I've been having an issue with the integration of a third-party DLL into a custom data flow component.
The company sent me a C# project that generates a simple console application. The project includes a class that calls their DLL with DllImport. The console application runs fine.
I created a stand-alone class using the C# class they sent to expose the methods of their DLL. In my custom component, I'm referencing this class to pass data to and from their DLL.
The first method from that stand-alone class that my component encounters simply gets their installation path from the registry and does not use DllImport. That path retrieval works fine. The next method calls a function that is declared with DllImport. Each time the call fails with "System.DllNotFoundException = {"Unable to load DLL AMZip.dll': Exception from HRESULT: 0xE06D7363"}".
I've copied this DLL to countless locations (e.g., the PipelineComponents directory, the project/solution bin directory) and included these paths in all manner of path variables.
What am I missing here? Their DLL is not strong named (does this matter since I'm using DllImport?), my stand-alone class is, and of course, the custom component itself is. I appreciate the help.
I am new to SSC . I have a table that has NO.OF WORKING HOURS for 30 days. I am trying to convert all the values into INT as MINS to generate a SSRS report.
Note: There are some records with negative value (-4h15m)
I am importing csv files into sql 2000 using odbcbcp and am getting the '' symbols when there are null values. Has anyone ever seen this? Or know how I can prevent this from happening? I am required to use odbcbcp to import this data.
Please can anyone help me - I am trying to establish whether there are any reserved symbols in SQL passwords
eg % £ " $ ( / < * etc
The SQL BOL has a list of reserved words but I cannot find a list of reserved symbols.
We have a problem where by for example if the main part of the password is "test" and my user wants to add a punctuation mark into this we get "You are attempting to use an invalid character message"
Specifically
"test$" is accepted "$test" is not accepted None of "te+st" "+test" "test+" are accepted.
Has anyone else come across this and found a list of the logic that produces these results so I can point my users in the right direction?
I am going crazy trying to figure out how to do this. I have a flat file which I am massaging the data and loading into a table here is an example of a line out of the flat file:
My problem is that I have one field which is this address in a concatinated form. The fields that do not apply to this entry are suite#, floor# and other columns which are designated by the "" characters. The final concatinated addres field looks like this:
"550""""N""FAIR OAKS"""
I would like to remove the "" characters in the concatinated string. I just don't know the best way to do this? I was told DTS had a way of removing the "" from the flat file source. Since I have not used DTS extensively I am not sure if this is true. I was wondering how in SSIS I could go about removing the "" marks without removing the "" say if someone is quoted eg. John said "This is only a test". Removing the quotation marks in this instance would be changing the data. I am not sure how to do this and any help or advice is greatly appreciated!
Hello, Kind of a .Net question, although specifically related to VSA.
We have a script task that references an external DLL. That DLL is a proxy for a web service and it takes its configuration info (e.g. location of the web service) from a configuration file.
We have created a quick-and dirty test harness exe to consume data using the proxy and it works fine. All you need to do is dump the proxy, the config file and the test harness exe into a folder.
This doesn't work so well when you substitute SSIS for the test harness. We are trying to use a script task which references the proxy DLL to get a response from the web service but when we execute we get:
"Cannot find default endpoint element that references contract 'blah blah blah' in the ServiceModel client configuration section. This might be because no configuration file was found for your application..." [See a screenshot here: http://cid-550f681dad532637.skydrive.live.com/self.aspx/Public/Misc/ssis_script_task_config_error.JPG]
This makes sense of course, right? The DLL needs the config file. However, where do you put the config file so that the DLL (which, remember, is running inside SSIS) can find it? We've tried putting it in the same folder as the .dtsx file, in the same folder as dtexec.exe...nothing works.
To try and debug we put the following code into the script task:
Code Snippet Dim rst_Path As String rst_Path = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName.CodeBase) MsgBox(rst_Path)
and the resultant message box was contained "file:C:WINDOWSassemblyGAC_MSILMicrosoft_VsaVb8.0.0.0__<GUID>"
which makes complete sense of course.
So, my question is, how can we configure this whole kaboodle of "stuff" so that it works?
I would like to develop WAP using ASP.NET which can connect to the Database( MS SQL Server ). Is it possible to do it? I try to find the tutorial but I cannot find it.
Another thing I want to ask is can I connect the WAP to the web services that I create using ASP.NET, anyone can tell me how to do it.
I need to create a query that will pull all of the records that are statused as 'OUT' from my RECORDS table and then get the last (chronologically) 'OUT' record from my IN/OUT table for each record it pulled from RECORDS.
I can get the records out of RECORDS without any problems but I don't know how to set up a query that will pull the last chronological 'OUT' record from my IN/OUT table. Is there a way to do this in SQL?
