Hi,
How do we set credentials or contex to a thread.
I create a new thread and within that thread if I am use a connetion string with Integrated Security=True" to talk to the SQL Server, however it seems that the new thread's context/identity is blank and hence failing the SQL Server connection.
Please help.
Thanks
is there a step by step paper to get there? here is what i need to consider. I Iwill have many customers that will need their own set of records and access pages "branded for their company" each customer will have many clients. I am hosting this application on a windows 2003 server with SQL 2005 server enterprise.
I am using windows authentication, I have created a username in windows, then i added the windows user in SQL management studio in security, granted "DB Read" and "DB write" and again under the database security tab. still from the web authentication fails. i must be nissing a step or two?
I expect to set up a username for each database as i setup new customers.
Hello !
I am owrking in java developmenton solaris using weblogic6.0
Does any body know how to access sql server data from solaris.
If some body knows that, can you please post me the steps
that i need to do it.
Thanks
Veena
Hi,I have a Sybase dataserver containing lots of (huge) tables that Iwould like to access from SQL Server (two different applications,using two different datasources, now want to talk to each other). MSAccess has a feature for 'linking' external data. Can I do similarstuff in SQL Server?Basically, I am trying to avoid having to duplicate the data in boththe dataservers and worry about keeping them in sync.Regards,Tanveer
View 3 Replies View RelatedHI,
I need some help regarding the data access.
I needs to access some data from tables which are in oracle and load it into sql server tables.
Please let me know the process for this.
Thanks in advance.
Hi,
I am trying to access the View through linked server connection .The linked server connection is between two sql server 2005.
The problem is I am not able to access 2 columns of nvarchar datatype of length 255, from the view through select statement.
I do a SELECT col1,col2 from VIEW,then getting the following error .
Cannot get the data of the row from the OLE DB provider "SQLNCLI" for linked server "SRVXPR". Could not convert the data value due to reasons other than sign mismatch or overflow.
Then I tried with
Select cast(Col1 as nvarchar) ,
cast(col2 as nvarchar) from VIEW,
I am able to get the values.
The collation type is same for all underlying tables and also for the servers.
Is there any restrictions in handling nvarchar data thru linked server/ anyother size limitation.
I don't want to use cast as this will lead to performance problem.
Thanks,
Philip
Hi
We are building a near real time application in Windows Forms, that stores data in SQL Compact Edition.
The client receives messages via UDP socket and performs insert / update operations to the db accordingly, and the requirement is to update a data grid with the changes.
We tried querying the db and receive a ResultsSet which is sensitive and scrollable, and bind a ResultSetView to the Grid. But, since the updates are made from another thread, the grid is not being refreshed.
What is the best approach for achieving this?
Thanks in advance,
Guy Burstein
http://blogs.microsoft.co.il/blogs/bursteg
Hi guys,
The default Engine Thread property of a data flow task is set to 5, is this the best setting? what if I would like to run complex data flow tasks on multi-processor machines, should I increase the engine thread? If so, then what is the recommended Engine Thread number for running complex data flow tasks in a multi processor system?
Even if i am running simple data flow tasks on a multi processor machine, should I change the engine thread?
Thanks!
Kervy
Hello there
I have a customer that wants to start using SQL Server 7.0 instead of Oracle, but they have a lot of Oracle applications (made in Developer 2000 and Forms). Due to the big effort needed to convert those applications (to Visual Basic), they want to be able somehow to migrate only data from Oracle to SQL Server, and then use some tool that will allow them to use the same applications with the SQL Server 7.0 engine.
I found on the "SQL Server Developer's Kit" a document describing the process of migrating data and applications from Oracle to SQL Server. There is a mention to an Oracle tool called "Oracle Gateway to SQL Server" that will translate calls received by the Oracle engine to the SQL Server engine, but this approach will still require the existence of Oracle servers (which is the thing the customer no longer wants).
The second option mentioned on that document, and the one that seems more attractive, is the use of Oracle "Open Client Adapter" (OCA) that will allow Developer 2000 applications to communicate directly to SQL Server via ODBC. However, I have been unable to find (on the Oracle site) any documentation regarding this tool.
Has anynoe heard or used such tool (OCA) ? Any comments, tips, drawbacks, experience you could share ? Any other idea on how a thing like that could be accomplished ? Perhaps a third-party application that can act as a gateway between the Forms app and ODBC/SQL Server, or that will be able to generate VB code from a Developer 2000/Forms app...
Any help will be appreciated.
Please respond directly to me, as I am not a member of the distribution list.
Luis Francisco Silva
Hi JayH (or anyone). Another week...a new set of problems. I obviously need to learn .net syntax, but because of project deadlines in converting from DTS to SSIS it is hard for me to stop and do that. So, if someone could help me some easy syntax, I would really appreciate it.
In DTS, there was a VBScript that copied a set of flat files from one directory to an archive directory after modifying the file name. In SSIS, the directory and archive directory will be specified in the config file. So, I need a .net script that retrieves a file, renames it and copies it to a different directory.
Linda
Here is the old VBScript Code:
Public Sub Main()
Option Explicit
Function Main()
Dim MovementDataDir
Dim MovementArchiveDataDir
Dim MovementDataFile
Dim MovementArchiveDataFile
Dim FileNameRoot
Dim FileNameExtension, DecimalLocation
Dim CurMonth, CurDay
Dim FileApplicationDate
Dim fso ' File System Object
Dim folder
Dim FileCollection
Dim MovementFile
'======================================================================
'Create text strings of today's date to be appended to the archived file.
FileApplicationDate = Now
CurMonth = Month(FileApplicationDate)
CurDay = Day(FileApplicationDate)
If Len(CurMonth) = 1 Then
CurMonth = "0" & CurMonth
End If
If Len(CurDay) = 1 Then
CurDay = "0" & CurDay
End If
FileApplicationDate = CurMonth & CurDay & Year(FileApplicationDate)
'=====================================================================
' Set the movement data directory from the global variable.
MovementDataDir = DTSGlobalVariables("gsMovementDataDir").Value
MovementArchiveDataDir = DTSGlobalVariables("gsMovementDataArchiveDir").Value
fso = CreateObject("Scripting.FileSystemObject")
folder = fso.GetFolder(MovementDataDir)
FileCollection = folder.Files
' Loop through all files in the data directory.
For Each MovementFile In FileCollection
' Get the full path name of the current data file.
MovementDataFile = MovementDataDir & "" & MovementFile.Name
' Get the full path name of the archive data file.
MovementArchiveDataFile = MovementArchiveDataDir & "" & MovementFile.Name
DecimalLocation = InStr(1, MovementArchiveDataFile, ".")
FileNameExtension = Mid(MovementArchiveDataFile, DecimalLocation, Len(MovementArchiveDataFile) - DecimalLocation + 1)
FileNameRoot = Mid(MovementArchiveDataFile, 1, DecimalLocation - 1)
MovementArchiveDataFile = FileNameRoot & "_" & FileApplicationDate & FileNameExtension
If (fso.FileExists(MovementDataFile)) Then
fso.CopyFile(MovementDataFile, MovementArchiveDataFile)
' If the archive file was coppied, then delete the old copy.
If (fso.FileExists(MovementArchiveDataFile)) Then
fso.DeleteFile(MovementDataFile)
End If
End If
Next
fso = Nothing
folder = Nothing
FileCollection = Nothing
Main = DTSTaskExecResult_Success
End Function
Hi boys and girls,
all of the sudden two days ago there are error messages started to appear in SQL Log, the server slows down substantially during these errors occurance:
SQL Server could not spawn process_loginread thread.
and
ERROR: Launch of System Task 'OnDemand' failed!
Any ideas of the best way to troubleshoot/reproduce it?
I run SQL2000 Ent on NT Server 2000 Advance. SP3a installed.
3.5Gb memmory allocated to the server with AWE anabled.
Any help appreciated.
Cheers.
Dim
Hope I'm not going to annoy anyone here too much but I'm looking for a place to post a job opening and was hoping that someone out there might know of a good site or two.
The job will be in the north Denver area.
Thanks! (And apologies if this is completely inappropriate behavior.)
Hi Everyone!
Just started looking into Assemblies within SQL Server in the hope of creating a multi-threaded application and when writing a basic test assembly I came across the following problem...
When I create a worker thread within my assembly I am unable to do the following in my newly created thread:
Stop on a breakpoint in VS2005
Use Debug.Writeline to output to the output window
I know the thread is running as I am able to write to the EventLog, but VS2005 seems to be unaware of any thread other than the main SQL server thread.
If anyone could tell me whether there it is possible to debug non-SQL server threads, whether I am doing something wrong, or whether I should be doing things differently that would be great!
Thanks in advance for any help!!
The code is as follows (apologies as its not very well written!):
using System;
using System.Data;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using Microsoft.SqlServer.Server;
using System.Threading;
using System.Diagnostics;
public partial class StoredProcedures
{
/// <summary>
/// This stored procedure starts the comms
/// </summary>
[Microsoft.SqlServer.Server.SqlProcedure]
public static void StartComms()
{
try
{
// Output some debug output to show the thread is running
Debug.WriteLine("Comms is starting");
// Create the thread to run in the main thread class
Thread zThread = new Thread(new ThreadStart(ThreadFunction));
// Start the thread running
zThread.Start();
// Sleep to let the other one run
Thread.Sleep(2000);
// Output some debug output to show the thread is running
Debug.WriteLine("Comms is about to wait for thread to finish");
// Wait for the thread to complete
zThread.Join();
// Output some debug output to show the thread is running
Debug.WriteLine("Comms is ending");
}
catch
{
throw;
}
}
/// <summary>
/// The main thread function
/// </summary>
public static void ThreadFunction()
{
try
{
// Flag to keep thread running
bool bRunning = true;
// While the thread is running
while (bRunning == true)
{
// Output some debug output to show the thread is running
Debug.WriteLine("Thread function running");
System.Diagnostics.EventLog.WriteEntry("SQLServerThreadTest",
"Thread function is running");
// Sleep for two seconds
Thread.Sleep(5000);
}
}
catch
{
throw;
}
}
};
The reason I had to start a new thread was that the old thread seems to be closed. There is no "Reply" button showing.
I still have the same problem. The last post asked if I was sure I was using SQLExpress.
I only have SQLEXPress and I have never had anything else. Therefore the question becomes - Why does the system seem to think I have another version?
Alan
Hi,
Here I will describe my problem.
1. We are loading large amount of data from database on background thread which is starting on Application_start event in global.aspx.cs file.The data is later cached for subsquent request to improve the performance.
2. Now when we put the application on web farm garden, it is not able to load the application.
3. We are sending the request the servers through Router kind of application.
4 This application is working fine on single server enviornment.
Please help us.
Ajay Kumar Dwivedi
I have an MVC asp.net application that stores many records in a table on sql server, in its own system. used the system for 2 months, worked fine accessing, changing data.
Now that other users are logging in? there is cross coupling going on. one user gets the data from another users sql search.
In the mvc app it had used the get async method to read the ID record from the db, i set that to synchronous. no effect; the user makes their own login id but that does nt matter either.
we recently got a scenario that we need to get the data from oracle tables which is installed on third party servers. we have sqlserver installed on ourservers. so they have created a DBLINK in oracle server to our sqlserver and published the DBLINK name.
what are the next steps that i need to follow on my sqlserver in order to access the oracle tables ?
We have an application that runs Jobs, each of which affect ## number of child objects (usually around 1M). When a thread gets to 5000 updated child objects it bulk inserts into a table called ActionLog with the child Id and JobId.
When the job is complete a sproc SUMs the children from the ActionLog table:
select sum(id) from ACTIONLOG where JOBID = @JobId;
It then updates the Jobs table AffectedObjectCount column with the sum(*) from above.
Instead of writing to the ActionLog table and calculating the SUM at the end I would like to do this 'real time'. After the bulk insert I would like to update the AffectedObjectCount column with the number of rows that were just bulk inserted. I tried this in the past and ran into major contention issues. There are usually 20 threads running a job so there exists a lot of potential for deadlocks.
Is there a recommended way to handle updating one column on one row from multiple threads? What is the best practice for a counter like this?
Hello All,
Suddenly, the sql server is down, in the log file, C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLLOGERRORLOG, I found the record as follows,
2007-03-05 15:40:31.59 Logon Error: 17189, Severity: 16, State: 1.
2007-03-05 15:40:31.59 Logon SQL Server failed with error code 0xc0000000 to spawn a thread to process a new login or connection. Check the SQL Server error log and the Windows event logs for information about possible related problems. [CLIENT: 172.21.123.48]
What else I can do to further investigate?
Thanks
Spencer
I have a SQLDataSource returning data for a formview. This should be a simple question that I cannot find an answer to. The SQLDataSource is returning only one row of data. How do I access the value of one of the columns?Thanks for the information.
View 3 Replies View RelatedHello Everyone,
Is it possible to write a query that can access data in differnt database so I have "trainee" and "training" databases. In want to access one training table in trainee database through a query. How can I do this.
Thanks.
Does anyone have code to access data? I want to create a sqldatasource control on the page, but would like to programmatically/manually/code-behind-wise to fill in my queries and their parameters. Thanks!
View 6 Replies View RelatedI am using a drap and drop SQLDataSource control. Everything works like I am wanting it to, but I want to check a value from one of the fields that I have retrieved. I am lost as how to retreive just the field. If I have to create another dataset to do the work what is the point of using the drag and drop control? I would really like to just access the dataset fields as needed.
View 2 Replies View RelatedThere has to be a better way (less code) to grab the data in one field than:string sql0 = "Select PSI from agentRate where agent='" + agent + "'";
SqlCommand command0 = new SqlCommand(sql0, conn2);SqlDataReader dr0 = command0.ExecuteReader();
string PSI="";while (dr0.Read())
{PSI = (string)dr0["PSI"];
}
dr0.Close();
Any Thoughts?
Hello sir,I have installed .net1.1version on windows2003 operating system.I have also installed sqlserver2000 on the same system.My problem is that when i am trying to get data from sqlserver from asp.net program i am getting error as 'access denied to user NT AUTHORITY/NETWORK USER'.I request you to kindly suggest me with an appropriate solution.Thanking you.Please email me on:-aanandkumar786@yahoo.com
View 1 Replies View RelatedHi,
I need to access data across my sql servers . All the servers are 6.5. Think MS DTC is the solution. But how to implement the same. Can somebody give me step by step instructions.
Thanks in Advance.
Cheers
There is any tools or products that allow Oracle Users to access SQL 2000 data in realtime? I know how to go in the opposite direction using linked servers, but am not sure on this direction,
Thanks
David
I've been trying to use the integrations services to access AS400 data with almost no success. Any suggestions or help you can give me would be appreciated. Some of the issues I can't make sense of are the following.
View 11 Replies View Related
Hi,
My source is Excel and one column has data in different languages. But when i try loading it to my Database errant data gets loaded.
I tried loading data to Flat file with no success.
Thanks in advance.
First let me give you a little back ground on me. I'm very new to the ASP, ASP.NET, Visual Studio, Sql Server, Frameworks....thing. I am coming over from a PHP/MySql background of over 5 years. The change over to VBScript and VB has been to tough and I have a basic liking for the Visual Studio 2005 and the ease of putting things together. However, I have come across something that to me seems like it should be relatively simple, but haven't been able to find the documentation or samples to describe what I'm looking to do.
Rough Need:
1. Start with a form will a couple labels and a singe textbox to get the lookup date from an user.
2. Query one table/view based on the users choice of date and select only one field of returned data.(Doing this by itself is not a problem and I can display my results in a Gridview, but this is where it starts getting tricky and the gridviews won't work for me.)
3. If there is something returned, I need to start a HTML table layout or possibly some form of a Gridview(I don't see how I would use the Gridview) and start a loop, adding the first returned row from this query into the first cell.
4. Now, based on that same User Date and the returned row value from the previous query, I need to query another Table/view and return another single field, which might return 1 or multiple rows, which I need to start a loop to display unique items in cells under the first on above.
5. Based on the original User Date and each returned row from the first query, I need to query two other Table/views and get some additional information. 4-5 fields will be returned and be displayed on one row in the number of necessary columns.
6. This would finish the first row from the first query, so I would need to loop back up to see if there were any further results and continue looping until the get to the last of the results from the first query.
7. Finally, I would just need to close up the Table/gridview.
The basic results I'm looking for would be similar to the following:
Results for 10/11/2005
Field name 1
Field name 2
Field name 3
Field name 4
Field name 5
First Result from query 11 of 4 results from Query 2, but only 1 unique result
Info from Query 3
Info from Query 3
Info from Query 3
Info from Query 4
Info from Query 4
Info from Query 3
Info from Query 3.
Info from Query 3
Info from Query 4
Info from Query 4
Info from Query 3
Info from Query 3
Info from Query 3
Info from Query 4
Info from Query 4
Info from Query 3
Info from Query 3
Info from Query 3
Info from Query 4
Info from Query 4
Second Result from query 1First result from Query 2 after looping though the first query Second result from Query 2 after looping though the first query
Info from Query 3
Info from Query 3
Info from Query 3
Info from Query 4
Info from Query 4
Info from Query 3
Info from Query 3.
Info from Query 3
Info from Query 4
Info from Query 4
Info from Query 3
Info from Query 3
Info from Query 3
Info from Query 4
Info from Query 4
Info from Query 3
Info from Query 3
Info from Query 3
Info from Query 4
Info from Query 4
It seems me from what I have read and slowly figuring out, is that I should be able to directly access the DataSet returned by four SqlDataSources, one for each of the above querys and then just write my own VB to handle the necessary looping, table format and such. I can easily add the for SqlDataSources to the page and add a Gridview for each one and get 4 separate chunks of info, but can't see a way with GridViews to intermingle the info like displayed above.
So, if it can be done with Gridviews, then I would love to see how that is done. But, if someone could explain to me how I access the DataSets directly that I get from the 4 SqlDataSources, then that would be ok too. I have figured enough out with VB, that I can write the code to do my looping requirements, if I can just access the information I get back. Thanks for reading all the way through this long post.
Jack
Can anyone point me in the direction of code that will allow me to acce3ss the data held in an SQLDataSource.
The Control is link Selection Staement has been set at run, what I want to do is loop thru any data that is rertrieved, setting oter controls on the page depending on values
Thanks
Steve (I have not got much hair left, please help soon)
I was wondering if you guys know of a good site that talks about programmatically accessing and displaying data from a sql server 05 database in ASP.NET 2.0.I want to have a data adapter in a dataset, but I would like to create my own class file and pull the data from the adapter through code into the class. Is this the best way? Im wondering about the best practices while learning this new technology. Any articles provided would be appreciated. Thanks!
View 2 Replies View RelatedI have written 5 content-management systems and am getting a little bored writing a lot of the same functionality and tweaking it for different datamodels. Is there a way within .NET to have visibility of a database's structure (ie, data type, column names, foreign keys etc)? I'd like to write up a dynamically generated form for any given table, displaying appropriate form controls based on data type and foreign keys.
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