Does SQL Server CE Support System.Transactions?
Feb 15, 2007
Hi,
I've tried to enclose a few database operations in a TransactionScope block but it looks like SQL Server CE RM does ignores ambiental transaction.
Here is the code:
static void TestTxn() {
// Command to insert an integer in a table with a single integer column
string cmdPassText = "INSERT TESTTABLE (INTFIELD) VALUES(1)";
// Command to force field type mismatch exception
string cmdFailText = "INSERT TESTTABLE (INTFIELD) VALUES('Foo')";
using (TransactionScope scope = new TransactionScope()) {
using (SqlCeConnection conn = new SqlCeConnection("DataSource = 'Test.sdf'")) {
try {
conn.Open();
SqlCeCommand cmdPass = new SqlCeCommand(cmdPassText, conn);
returnValue = cmdPass.ExecuteNonQuery();
SqlCeCommand cmdFail = new SqlCeCommand(cmdFailText, conn);
returnValue = cmdFail.ExecuteNonQuery();
}
catch (Exception ex){
Console.WriteLine("Command failed");
Console.WriteLine("Exception Message: {0}", ex.Message);
}
}
scope.Complete();
}
}
After first command suceeds and seccond command failes table still has one affected row after transaction.
Am I doing something wrong or System.Transactions.Transaction is not supported with SQL Server CE RM?
Thanks,
Aleksandar
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Apr 12, 2006
I want to use transactions to protect my tasks. I have ten tasks that need to be completed in a single package. If any of the tasks fail - I need the entire process to rollback.
I have 5 execute sql tasks to truncate groups of tables in my destination database.
After each of the single truncate tasks - I use data flow tasks to copy the data from the source to the destination db.
Both dbs are on the same server.
I am basically copying the entire db - with the exception of a few tables.
package.transactionOption = required ,
and all tasks transactionOptions are set to supported.
Several questions. It seems to hang on the first data flow task - the output window stops, etc.
If I set package.transactionOption = supported - The package will execute.
If I create an error on the thrid truncate task - all previous tasks will complete - the package will fail on step 3 and the truncation for this step is not commited.
I am partially there. Can anyone help point me in the right direction? I need the entire process to commit if all tasks are successful or rollback if any fail.
thank-you in advance
Kim
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Mar 27, 2006
hello
i have a problem when i try to begin transaction in sql
this is the massege
"SqlConnection does not support parallel transactions."
but the connection dosent have another transAction
what can i do
thanks
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Oct 12, 2007
I have code that creates a SQL Mobile database on a server. It has worked in many environments, but I have one customer experiencing an issue. It will not create the database on their server. I would appreciate any thoughts.
The exact error message I get is "the operating system does not support encryption"
I am getting it on the line: SQLCeEngine.CreateDatabase()
Here is the code:
SQLCeEngine = New SqlServerCe.SqlCeEngine(SQLConnectionString)
ReturnValue += ": Declare new"
SQLCeEngine.CreateDatabase()
ReturnValue += ":Create"
SQLCeEngine.Dispose()
ReturnValue += ": Dispose"
Here is the error message I get from our application- the part after Err: is the actual error message from the system:
Data Source = D:EVADATAWebServiceDownloads est;Password=test;Persist Security Info=False;: Declare new:Error!:Err:The operating system does not support encryption.
When I go into SQL Express and create a SQL Mobile database using it, it can be created. So, I have to believe it can be done on the server, but I don't know why the code can not do it.
(e.g. FileConnect Object ExplorerServer Type: SQL Server compact Edition and create a database). The database is successfully created if I do it manually this way. It even creates fine if I select the 'Encrypt' button.
The machine is a Windows 2000 Server sp4 version 5.00.2195
SQL 2000 is installed
SQL 2005 Express is installed
I ran the SQLServerCE31-EN.msi file and it is installed. (I have also re-run and repaired it)
I have also copied over the newest version of our code from scratch.
SQL Server mgmt Studio: 9.00.3042.00
MDAC 2000.085.1128.00
MSXML 2.3 3.1 4.0 5.0 6.0
IE 6.0.2800.1106
.NET Framework 2.0.50727.42
Operating System 5.0.2195
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Jul 17, 2006
This is my code in vb.net with Sql transactionI am using insertcommand and update command for executing the sqlqueryin consecutive transactions as follows.How can I achive parallel transactions in sql------------------start of code---------------------trybID = Convert.ToInt32(Session("batchID")) strSQL = "" strSQL = "Insert into sessiondelayed (batchid,ActualEndDate) values (" & bID & ",'" & Format(d1, "MM/dd/yyyy") & "')"
sqlCon = New System.Data.SqlClient.SqlConnection(ConfigurationSettings.AppSettings("conString"))
Dim s1 As String = sqlCon.ConnectionString.ToString sqlDaEndDate = New System.Data.SqlClient.SqlDataAdapter("Select * from sessiondelayed", sqlCon) dsEndDate = New DataSet sqlDaEndDate.Fill(dsEndDate)
dbcommandBuilder = New SqlClient.SqlCommandBuilder(sqlDaEndDate)
'sqlCon.BeginTransaction() 'sqlDaEndDate.InsertCommand.Transaction = tr If sqlCon.State = ConnectionState.Closed Then sqlCon.Open() End If sqlDaEndDate.InsertCommand = sqlCon.CreateCommand() tr = sqlCon.BeginTransaction(IsolationLevel.ReadCommitted) sqlDaEndDate.InsertCommand.Connection = sqlCon sqlDaEndDate.InsertCommand.Transaction = tr sqlDaEndDate.InsertCommand.CommandText = strSQL sqlDaEndDate.InsertCommand.CommandType = CommandType.Text
sqlDaEndDate.InsertCommand.ExecuteNonQuery() tr.Commit() sqlDaEndDate.Update(dsEndDate) sqlCon.Close() End If Catch es As Exception
Dim s2 As String = es.Message If sqlCon.State = ConnectionState.Closed Then sqlCon.Open() End If strSQL = " update SessionDelayed set ActualEndDate= '" & Format(d1, "MM/dd/yyyy") & "' where batchid=" & bID & "" sqlDaEndDate.UpdateCommand = sqlCon.CreateCommand() tr1 = sqlCon.BeginTransaction(IsolationLevel.ReadCommitted) sqlDaEndDate.UpdateCommand.Connection = sqlCon sqlDaEndDate.UpdateCommand.Transaction = tr1 sqlDaEndDate.UpdateCommand.CommandText = strSQL sqlDaEndDate.UpdateCommand.CommandType = CommandType.Text sqlDaEndDate.UpdateCommand.ExecuteNonQuery() tr1.Commit() sqlDaEndDate.Update(dsEndDate) sqlCon.Close()
End Try
'-------------End----------------
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Aug 23, 2006
I'm trying to run an SSIS package. The package runs on an SQL 2005 server on Win2k3 server. The package tries to connect to another win2k3 server with sql 2000 to retrieve some data. However, I recieve the errormessage shown in the topic.
I found info about modifying the MSDTC security settings under "component services" and did so. I made sure everything was allowed. However, the result was the same. Does anyone have any other idéa about what could cause this problem?
PS. The package works fine if I set up both databases on the same physical machine...
Regards Andreas
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Oct 14, 2005
Hi,
I've been doing some work with nested TransactionScope classes and timeouts and I'm getting some strange results that I can't quite explain. I'm hoping that I've done something foolish in my code, since that will be by far the easiest fix :)
The scenario is that I have a stored procedure that may block indefinately (arguably not great, but it's outside of my control) - in the example below, it does a simple "waitfor" to pause for 3 seconds. There is a intermediate data layer between my application code and the database that wraps all database calls in a TransactionScope (essentially the ExecCommand method in the example). At the application layer, we create a TransactionScope with a timeout, then call into the data layer to perform the query (the application layer is the Main method in the example).
The behaviour I'm seeing is that the initial call will block within SQL Server until the current executing SQL command completes (in this case, the waitfor). At that point, the batch is terminated and control returns to the C#. Within the C# there are no errors until the outer TransactionScope is disposed; the only apparent way of detecting that the batch didn't complete is to examine the Transaction.Current.TransactionInformation.Status property. I can just about live with that (although would have prefered that the ExecuteNonQuery had thrown); the example checks this status property and throws an exception if it's bad.
So far, so good. It all goes very wrong if I attempt to make another call. If the connection has the "connection reset" property set to false, then the second call fails immediately with a "transaction in doubt" error. If the "connection reset" property is set to true, then the second call completes successfully, except the database doesn't get called! (In profiler, you see the exec os sp_reset_connection, but that's all). It all looks as if I've not tidied up properly, but I'm not sure what I've missed. To add some spice, putting a 1 second sleep before the Execute makes everything work as expected.
The sample code is below; sorry if it's a little large. There a connection string right at the top that you may need to tweak. It creates a stored procedure in the initial catalog; see line 95 for details - it's nothing offensive! The sample compiles just fine from the command line with no special options needed.
Finally, I'm running .Net v2.0.50727 and the Sept. CTP of SQL Server 2005.
Here's hoping someone can tell me what I've done wrong!
Cheers,
Steve
using System;
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Jun 4, 2002
We are trying to determine what SQL Server 2000 Edition is required for our environment. We really don't need any of the features that Enterprise Edition offers over Standard Edition, except that our disk storage is on a System Area Network (SAN). BOL says that SAN is not supported under Standard Edition, but I am under the impression, that if we are not using distributed queries or replication, then Enterprise Edition is not neccessary.
Any help?
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Jul 10, 2006
Hi All,
Iam using HP iPAq hw6500 series PDA. My application in installed in the PDA and when i try to open the application by taping on the application icon, Iam getting the following error.
Error: 0x80004005 E_FAIL
Native Error: (25080)
Description: The operating system does not support encryption. [,,,,,]
Interface defining error: IID_IDBInitialize
Param. 0: 0
Param. 1: 0
Param. 2: 0
Param. 3:
Param. 4:
Param. 5:
The application is builded on embedded VC++4.0
Can anyone help to figure out the possible reason for this error?
Thanks & Regards
Rajeev
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Sep 27, 2007
Hi,
We are using SQL Server Compact Edition v3.1. We have 2 users running on Windows XP with Service Pack 2, who are getting errors that the Operating System does not support encryption when creating a new database. The problem is not with the code, one of the users installed the same software on a different Windows XP system and the software operates correctly. We also have many other installations that are working properly as well, so it appears to be something specific to these 2 computers.
We've had the user try repairing their .NET Framework 2.0 install, in addition to confirming that the
Crypt32.DLL and CryptUI.DLL dependencies are both present and of the correct version in WindowsSystem32. We've also verified that the users do have write access in the directory we are trying to create the database.
Is there something we can do to fix encryption on these users systems or something the users may have done to disable encryption?
Thanks
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Apr 4, 2006
Taht is my code. I have a defined common transaction.
In my call path, I use:
using (IDbConnection connection = GetConnection ()) {
retval = q.Find (connection, out DataParticleList);
connection.Close ();
}
DetermineDataParticles ((DataParticle[]) DataParticleList.ToArray (typeof(DataParticle)));
And then, in Determine DataParticles, I do:
using (TransactionScope scope = new TransactionScope (_Transaction)) {
using (IDbConnection connection = GetConnection ()){
again. As both are using a TransactionScope that - uses the same transaction, and as the first connection has been closed - should the whole thing not reuse the same connection? GetConnection () has the same connection string.
I get a promotion to DTC in the second GetConnection (). That indicates that a new connection is being opened (and attached), and not the first one being used. Any hint on why that is? What can I change for this? I would really like this not to be promoted upward to DTC. It makes no sense to me.
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Oct 12, 2007
I read the online document, It seems that SSCE3.5 could support windows xp 64 bit operating system with WOW. but SSCE3.0 did not mention.
my appliaction is using SSCE3.0 on windows xp 32 bit operating system right now. I want it to be also used on windows xp 64 bit. but it seems that SSCE3.0 does not support it.
could anyone please give some suggestion? any idea and suggestion will be appreciated.
Thanks.
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Oct 4, 2007
I'm implementing a transactional receive from SSB queue. I used System.Transactions.TransactionScope to simplify the transaction management code. When I used the "WAITFOR (RECEIVE ...), TIMEOUT 100" statment I get TransactionAbortedException when I try to open the second connection under the same TransactionScope block.
Note that when I remove the WAITFOR and just doing RECEIVE everything works fine and the transaction state is guaranteed.
Does anybody know if this a known issue with WAITFOR? Does it supposed to abort the transaction when the command completes?
See code below and stack traces I got.
Thanks,
Noam Helfman
Repro code:
Code Blockusing (TransactionScope txnScope = new
TransactionScope(TransactionScopeOption.RequiresNew))
{
using (SqlConnection conn1 = new SqlConnection(TestConnectionString))
{
conn1.Open();
using (SqlCommand command = conn1.CreateCommand())
{
command.CommandText =
"WAITFOR (RECEIVE TOP(1) message_body FROM TestReceiveQueue), TIMEOUT 100"; // <-- this causes TransactionAbortedException below
//command.CommandText = "RECEIVE TOP(1) message_body FROM TestReceiveQueue"; // <-- this works
command.CommandType = CommandType.Text;
using (SqlDataReader reader = command.ExecuteReader())
{
while (reader.Read())
{
byte[] message = (byte[])reader["message_body"];
}
}
}
using (SqlConnection conn2 = new SqlConnection(TestConnectionString))
{
conn2.Open(); // <-- TransactionAbortedException here
using (SqlCommand command = conn2.CreateCommand())
{
command.CommandText = string.Format("INSERT INTO tbl1 VALUES (1)");
command.CommandType = CommandType.Text;
command.ExecuteNonQuery();
}
}
txnScope.Complete();
}
}
...
Schema:
Code BlockCREATE QUEUE TestReceiveQueue WITH STATUS=ON ,RETENTION=OFF;
CREATE TABLE tbl1 (col1 int not null);
Stack traces:
Code Block
System.Data.SqlClient.SqlException: Cannot promote the transaction to a distributed transaction because there is an active save point in this transaction.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject
stateObj)
at System.Data.SqlClient.TdsParser.TdsExecuteTransactionManagerRequest(Byte[] buffer, TransactionManagerRequestType request, String transactionName, TransactionManagerIsolationLevel isoLevel, Int32 timeout, SqlInternalTransaction transaction, TdsParserStateObject stateObj)
at System.Data.SqlClient.SqlInternalConnectionTds.ExecuteTransactionYukon(TransactionRequest transactionRequest, String transactionName, IsolationLevel iso, SqlInternalTransaction internalTransaction)
at System.Data.SqlClient.SqlInternalConnectionTds.ExecuteTransaction(TransactionRequest transactionRequest, String name, IsolationLevel iso, SqlInternalTransaction internalTransaction)
at System.Data.SqlClient.SqlDelegatedTransaction.Promote()
System.Transactions.TransactionPromotionException: Failure while attempting to promote transaction.
at System.Data.SqlClient.SqlDelegatedTransaction.Promote()
at System.Transactions.TransactionStatePSPEOperation.PSPEPromote(InternalTransaction tx)
at System.Transactions.TransactionStateDelegatedBase.EnterState(InternalTransaction tx)
System.Transactions.TransactionAbortedException: The transaction has aborted.
at System.Transactions.TransactionStateAborted.CheckForFinishedTransaction(InternalTransaction tx)
at System.Transactions.EnlistableStates.Promote(InternalTransaction tx)
at System.Transactions.Transaction.Promote()
at System.Transactions.TransactionInterop.ConvertToOletxTransaction(Transaction transaction)
at System.Transactions.TransactionInterop.GetExportCookie(Transaction transaction, Byte[] whereabouts)
at System.Data.SqlClient.SqlInternalConnection.EnlistNonNull(Transaction tx)
at System.Data.SqlClient.SqlInternalConnection.Enlist(Transaction tx)
at System.Data.SqlClient.SqlInternalConnectionTds.Activate(Transaction transaction)
at System.Data.ProviderBase.DbConnectionInternal.ActivateConnection(Transaction transaction)
at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, dbConnectionFactory connectionFactory)
at System.Data.SqlClient.SqlConnection.Open()
at SqlServiceBrokerQueueTest.WAITFORBug() in SqlServiceBrokerQueueTest.cs:line 375
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Nov 19, 2007
A customer of my program is getting the SQL CE error message "The operating system does not support encryption".
I've seen several threads on this issue, but none of them seem to apply to my problem. This is a Windows Forms application, so no device and no web service.
The OS is a German Windows XP - so there shouldn't be any issues regarding strong encryption. It even runs in Windows 2000 in our test VPC.
We're using SQL CE 2005.
Any ideas what I could check?
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Oct 12, 2007
I have created an .sdf database on my Desktop - and am able to open and close it just fine from my application program.
Whenever I try to:
Open it with the same program but installed on a different PC,
or:
Open it from a program running as a service on the development PC, I get the error
"The operating system does not support the Encryption Mode provided."
The working above is from the Version 3.5 Beta, but the same problem occurs with Version 3.1.
The Error code in Hex is 80004005
I can't find any reference to fixing this error - any ideas?
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Jan 5, 2006
I have XP Pro SP2 with MDAC 2.8.1022. It had a problem so I tried to reinstall MDAC and got a Fatal Setup Error. This setup does not support installing on this operating system. I downloaded MDAC 2.8 1177 and get the same error.
I thought of uninstalling/reinstalling SP2, but this is a 2 month old Dell Latitude 610 with factory installed XP. There is no Windows Service Pack 2 option listed in the Control Panel > Add/Remove Programs.
There's some other strange things, so I wonder if they are related.
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Dec 5, 2005
Reader Community
I've just started hosting my newly created Microsoft Visual Web Developer 2005 Express Edition web site. Unfortunately the Login group membership functions will not function correctly. Having contacted the web service hosting provider, They replied: "We do not support SQL express2005. The only way to use the extra functions of ASP.NET2 such as group membership is if it is using an SQL 2000 database to connect to. "
Is it possible to design web sites with Microsoft Visual Web Developer 2005 Express Edition that store membership details on an SQL 2000 database?
I've just paid £88 approx. $140 for a years subscription, have I chosen the wrong web service hosting provider?
Should I have designed the web site with a better web site design software tool that also makes designing membership login functionality easy, just as Microsoft Visual Web developer 2005 express edition?
Look forward to all comments?
Regards
Philip
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May 22, 2005
Hi there,
I have decided to move all my transaction handling from asp.net to stored procedures in a SQL Server 2000 database. I know the database is capable of rolling back the transactions just like myTransaction.Rollback() in asp.net. But what about exceptions? In asp.net, I am used to doing the following:
<code>Try 'execute commands myTransaction.Commit()Catch ex As Exception Response.Write(ex.Message) myTransaction.Rollback()End Try</code>Will the database inform me of any exceptions (and their messages)? Do I need to put anything explicit in my stored procedure other than rollback transaction?
Any help is greatly appreciated
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Apr 3, 2007
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SQL Server Edition Operating System Compatibility (Warning)
Messages
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* Some components of this edition of SQL Server are not supported on this operating system. For details, see 'Hardware and Software Requirements for Installing SQL Server 2005' in Microsoft SQL Server Books Online.
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Any work around for this issue?
P.S.: I didn't install VS.NET 2005 yet, can this solve the problem?
Thanks.
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Does Sql Server Compact Edition 3.5 support RDA synchronization with Sql Server 2000 database?
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Aug 21, 2006
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I am not running the webpage in a virtual directory but in
C:Inetpubwwwrootusercontrol
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System.Security.SecurityException: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)
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at System.Data.SqlClient.SqlConnectionFactory.PermissionDemand(DbConnection outerConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection,
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Demand
The type of the first permission that failed was:
System.Data.SqlClient.SqlClientPermission
The Zone of the assembly that failed was:
Trusted
I looked into the .net config utility but it says unrestricted and I tried adding it to the trusted internet zones in ie options security
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