Deadlocked On Thread | Communication Buffer
Oct 19, 2005
Sql version
Microsoft SQL Server 2000 - 8.00.818 (Intel X86)
May 31 2003 16:08:15
Copyright (c) 1988-2003 Microsoft Corporation
Standard Edition on Windows NT 5.0 (Build 2195: Service Pack 4)
I have dts running 24 X 7 every 5 minutes
I noticed DTS failed few times a day with error
Step Error Source: Microsoft OLE DB Provider for SQL Server
Step Error Description:Transaction (Process ID 74) was deadlocked on thread | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
Step Error code: 80004005
Step Error Help File:
Step Error Help Context ID:0
The is no entry about in Server server log files.
will trace identify deadlock and why deadlock info not entred into log file ?
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Jan 2, 2006
In an SSIS package I am continually getting the same error:
"Transaction (Process ID 58) was deadlocked on thread | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly.
The package is attempting to do a simple Execute SQL Task. Since this seems like a database and not integration services issue, does anybody have any thoughts or insight into this error and where to begin troubleshooting?
Thanks,
Adrian
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Apr 18, 2012
I encountered the following error while attempting to preview an RDL report I was developing in VS2010 using SSDT:"The size necessary to buffer the XML content exceeded the buffer quota"
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Oct 7, 2015
We have a set of reports with same header section in all the reports. So while developing a new report i used to copy that header section to the new report with same dataset names (without any change) , but while rendering the report it is throwing error " The size necessary to buffer the XML content exceeded the buffer quota".
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Apr 28, 2006
Hi
I have a master package that executes a series of sub packages run from a SQL Agent job. One of those sub packages has been stable for a week, running at least once per day, but it just failed despite having been run once already today with the same set of input data.
There were a series of errors showing in the event log for the Execute Package Task starting with "Buffer Type 15 had a size of 0 bytes.", then "The buffer manager failed to create a new buffer type.", then "The Data Flow task cannot register a buffer type. The type had 32 columns and was for execution tree 3.", then "The layout failed validation." and finally "Error 0xC0012050 while loading package file "C:[Package].dtsx". Package failed validation from the ExecutePackage task. The package cannot run.".
SQLIS.com reports the constant for the error code as DTS_E_REMOTEPACKAGEVALIDATION ( http://wiki.sqlis.com/default.aspx/SQLISWiki/0xC0012050.html ).
I then ran the package on my dev machine in BIDS and it worked fine, so I re-ran the job on the server and this time that package executed ok, but another one fell over but did not put anything in the event log.
Does any one have any idea what happened?
TIA . . . Ed
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Mar 6, 2008
Good day everyone,
I'm experiencing a completely random warning from any given row count component within any given data flow task. It occurs sporadically. Whilst distracting, I don't see any adverse effects to the data after the packages complete. Can someone weigh in on this warning and let me know if it is indeed benign or what I maybe able to do to fix it?
Here's the warning:
"A call to the ProcessInput method for input 75997 on component "CNT Rows sent for STG table" (75995) unexpectedly kept a reference to the buffer it was passed. The refcount on that buffer was 4 before the call, and 5 after the call returned."
Thanks,
Langston
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Feb 9, 2000
When I execute a select with an inner join my query is bombing out calling me a deadlock victim. I know what deadlocking is, but I am only doing a select.
Why would a select lock records?
Could anyone explain what locking occurs when a select is fired with a join?
Thanks
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Nov 10, 2006
Hi,
I got the following error when I try running my “comments.aspx� page with visual studio 2005Exception Details: System.Data.SqlClient.SqlException: Transaction (Process ID 83) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
fExecuteQuery(String commandText, String dataSetName) +90 fExecuteQuerySet(String commandText, String dataSetName) +36 ASP.comments_aspx.GetNarComment() +618 ASP.comments_aspx.Page_Load(Object sender, EventArgs e) +476 System.Web.UI.Control.OnLoad(EventArgs e) +67 System.Web.UI.BasePage.OnLoad(EventArgs e) +1013 System.Web.UI.PopupPage.OnLoad(EventArgs e) +4 System.Web.UI.Control.LoadRecursive() +35
System.Web.UI.Page.ProcessRequestMain() +750
The segment code was the problem sits in file "comments.aspx"::
…
string cmdText=��;
cmdText = string.Format(@"-- Get All Narative comments fo all students in the course from @selectedTermID down to its child terms
exec aagGetStudentSectionComments @companyID={0}, @sectionID={1}, @selectedTermID={2}, @StudentID={3}
", _companyID, sectionID, selectedTermID, studentID);
ds = fExecuteQuerySet(cmdText, "getMySet");
…
// the 2 functions to deal with ADO.NET to be called in above code segment
// return a dataset.
public DataSet fExecuteQuery(string commandText, string dataSetName)
{
DataSet mds = new DataSet();
SqlDataAdapter da = new SqlDataAdapter(commandText, _cn);
da.SelectCommand.CommandTimeout = 600; // 600 seconds
da.Fill(mds, dataSetName);
return mds; // return dataset
}
// Assume para commandText contains sql query which returns a table or more.
// return a DataSet.
public DataSet fExecuteQuerySet(string commandText, string dataSetName)
{
DataSet mds = new DataSet();
mds = fExecuteQuery(commandText, dataSetName);
return mds; // return DataSet
}
Please give me the reason why that dealock happens?Thanks in advance
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Apr 10, 2000
The errormessage after a deadlock gives very little information: "Your transaction (process ID #12) was deadlocked with another process and has been chosen as the deadlock victim. Rerun your transaction."
But what resources, ie tables, indexes etc, are really deadlocked?
Is it possible to set a switch or something to log all relevant information about a deadlock for later investigation?
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Feb 27, 2006
ive seen this Deadlock Error message out on the internet being discussed, but no solution being offered.
i have a windows service that's running Select Statements [one at a time] - so unless there's some command in sql server that would re-run these - it could be a problem for me.
now if im running this select proc manually - of course i see the message and re-run the process, but how can this be accomplished programatically.
see msg below:
Transaction (Process ID 106) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
thanks for any help on this
rik
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Nov 7, 2007
Hi, i get this error while i manually execute dts. But when i execute dts on my .aspx page, i can't handle this error on "... catch(Exception ex) {... }" part. catch (Exception ex) {
return ex.Message ; //DtsPackage.OnError += new PackageEvents_OnErrorEventHandler(DtsPackage_OnError);
} Here is dts message in a text file. Step 'DTSStep_DTSDataPumpTask_3' failedStep Error Source: Microsoft OLE DB Provider for SQL ServerStep Error Description:Transaction (Process ID 124) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.Step Error code: 80004005Step Error Help File:Step Error Help Context ID:0 Any idea?
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Nov 29, 2004
;)
Hello Everybody,
My name is Fabio and I post from Italy.
First, I don't know if this argument was already discussed in the past, but I'm new in this group so ...
Second I'm not so expert in DB due to the fact that I'm using SQL for the first time in my life ...
I use a store procedure to pass to every single user in my intranet (more than 150), details of different clients taken from an SQL table containing around 30.000 names.
Users have an ASP page displaying the information Selected in the DB.
This means that 150 users display info of 150 different clients.
To to this I use this code in store procedure:
CREATE PROCEDURE sp_assign_name
@iduser int
AS
if exists(select top 1 * from recallornotes where tmkoperator= @iduser)
update nominativitelecom set tmkmotrecall=convert(nvarchar(1), tmkstatus), tmkstatus=7 where id in (select top 1 id from recallornotes where tmkoperator=@iduser)
else
begin
if exists(select top 1 id from nonotes)
update nominativitelecom set tmkmotrecall=convert(nvarchar(1), tmkstatus), tmkstatus=7, tmkoperator =@iduser where id in (select top 1 id from nonotes with (UPDLOCK) order by NewID())
end
GO
This is working quite well when the number of users are more ore less around 50/60, when the number grows, on the IIS server (Pentium IV server, with Win 2000 in English, MS SQL 2000, and 1 Giga of ram), a file called DLLHOST.exe start to use the 100% of the CPU, and the users cannot display any other ASP page on their screens.
It is not a virus (some newsgroup report this problem connect to a worm virus, but we have latest antivirus files installed and spyware detect/delete on).
The SQL log reports this error:
"transaction (process id 69) was deadlocked on (lock) resources with another process and has been chosen as the deadlock victim. rerun the transaction".
Is there a way to avoid the conflict that occur when different users are trying to select the same record in the DB ?
In other terms, which process will you use in the same situation to select one record per user ?
Thanks in advance for your precious help,
Fabio
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May 30, 2006
Hi All,
please throw in any ideas as it matter of urgency.
We have rebuild our 24/7 heavy loaded website using ASP.NET 2.0 and SQL 2005 (we have one active-passive cluster for main activity and 2 active-active clusters to browse static data).
Main cluster is publisher and distributor for replication of data (small subset of it and it works fine).
Hardware is pretty tough - 16 zeons 32G ram, NetApp SAN.
We had no troubles in first 3 days but now it gives us some headache.
Yesterday it failed and website was unavailable for about 5 min. Today happened the same.
SQL Server rebooted - no failover occured - just rebooted on the same physical box as it was before.
The first message I can see :
All schedulers on Node 0 appear deadlocked due to a large number of worker threads waiting on LCK_M_IS. Process Utilization 0%%.
We didnt have any significant lock issues before and havent been expecting them. Yesterday db failed in the morning - which is not a peak time.
Is anyone can advise on what I have to do to find out the real source of the problem. Is it the same for both incidents ?
P.S. We have 3d party monitoring our db and also we have NetApp software doing Snapshot backups on the SAN.
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Nov 7, 2007
Hi, i get this error while i manually execute dts. But when i execute dts on my .aspx page, i can't handle this error on "... catch(Exception ex) {... }" part.
catch (Exception ex)
{
return ex.Message ;
//DtsPackage.OnError += new PackageEvents_OnErrorEventHandler(DtsPackage_OnError);
} Here is dts message in a text file.
Step 'DTSStep_DTSDataPumpTask_3' failed
Step Error Source: Microsoft OLE DB Provider for SQL Server
Step Error Description:Transaction (Process ID 124) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
Step Error code: 80004005
Step Error Help File:
Step Error Help Context ID:0
Any idea?
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Apr 6, 2007
The scenario is as follows: I have a source with many rows. Each row has a column called max_qty_value. I need to perform a calculation using another column called qty. This calculation is something similar to dividing qty/(ceiling) max_qty_value. Once I have that number I need to write an additional duplicate row for each value from the prior calculation performed. For example, 15/4 = 4. I need to write 4 rows to the same target table as in line information for a purchase order.
The multicast transform appears to only support fixed and/or predetermined outputs. How do I design this logic in SSIS to write out dynamic number of rows to a target table.
Any ideas would be greatly appreciated.
thanks
John
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Oct 5, 2007
Hi:
On a production SQL2000 STD sp4 server,
1. I have dropped 10 tables with each around 1-2 gb in DB ABC
2. I had run DBCC ShrinkDatabase (ABC, 20) and it is failed after running 133 hours this morning. Yes, 133 hours.
It ran 72 hours last month and shrinked from 200 gb to 180 gb.
Thus, I expected it should be <= 72 hours to fnish since 10 more tables are dropped ?
Msg 1205 Transaction (Process ID 75) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
DBCC shrinkDatabase will cause deadlocking? how to avoid it?
Is there other ways to speed up?
thanks
-D
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Jun 27, 2007
Hi, i am getting this error when i am running a stored procedure.
Transaction (Process ID XXXX) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
i think so it is getting this error becasue it blocking it self at one point in the SP
DECLARE cty_Cursor CURSOR FOR
SELECT Country FROM TB_Country
declare @cty varchar(2)
OPEN cty_Cursor;
FETCH NEXT FROM cty_Cursor into @cty;
WHILE @@FETCH_STATUS = 0
BEGIN
EXEC SP_DO_SOMETHING @cty
FETCH NEXT FROM cty_Cursor into @cty;
END;
CLOSE cty_Cursor;
DEALLOCATE cty_Cursor;
i think so it calls the SP then before SP finsih its working it calls it back from cursor with other argument.
how we can make it sure it finish it execution before it is being called again. i think so we need some sort of lock here but i am not able to find right solution . please anyone suggest something.
Regards,
Haroon
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Jun 2, 2015
Is there a way to write a script ,keep the script in SQL Agent job , run the  job to keep track of Blocked and deadlocked queries and store them in any Table or with triggers?with out Profiler,Audit,activitymonitor ?Â
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Feb 28, 2004
Hi,
I have created vb6 app to connect to sql server 2000 db, and now i have a new requirement: to publish this app on web, but I should use an exising vb6 application that includes all buisness logic and all communication with database: quieries, stored procedures, etc.
To implement this, i create a client :HTML interface and server: asp file that receives an input from client and calls vb6 functions with parameters he received from client. My question is: how can i call from asp application a vb6 application?
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May 5, 2008
I have a database where it will be simple to calculate needed data. Specifically I need to calculate the sum of several columns based on a number of WHERE constraints. I can write the SQL statements - up to a point. The point is the transition to VB. For a simple example
Select sum(Costs) from Research where (Code = 01213).
Now somewhere I have floatiing around in the machine I have my answer but how do I get the SQL results as a variable I can equate to my Visual Basic variable Total_Research_Costs?
Please also let me know if I have won the stupid question of the month?
Thanks for your help.
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Apr 14, 2008
Whe I try to save the package to sql server. I am getting the below error.. there is no error in a package..
"The save to sql server method has encountered OLE DB error code 0X800004005(communication link failure) in ssis"
What is wrong? and how can i fix it?
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Oct 8, 2001
I need to get two servers to talk to each other so they can run queries on each other. Any info?
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Aug 13, 2000
We are developing an ASP ad component for our web site. For the past one week
we are testing the component in real environment. All of a sudden we are getting the following error message.
Microsoft OLE DB Provider for ODBC Drivers error '80004005'
[Microsoft][ODBC SQL Server Driver]Communication link failure
We are using SQL Server 7.0 with Windows NT4 SP4, IIS and ASP
We are not using any complex joins or view updation. We are using ADODB connection variable with an application scope to establish the connection. When we try to use the connection object to open a Recordset, this error occured. We colsed the connection and destroyed the ApplicationScope Connection object and re-created the object with out any success.
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Apr 10, 2007
I get ODBC Error 823 when I try to access data from Crystal reports and I/O error, communication link failure...from query analyzer. But the weird thing is it is on and off. If I keep keep clicking 4 times in a row it happens 5 time or 7th time. It is alo only on one of the big tables. They are all stored on same primary filegroup?
Any ideas on what this might be? When I checked BOL it said disk error. The network team doesn't seem to agree. How can I make sure it is hardware or software problem?
Please help.
B.T.W we have SQL 2000 Enterprise.
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Jul 20, 2005
Hello,We are the authors of an application written in PowerBuilder (typeClient-Server, database MSSQLServer2000).After some time (1 hour) of client inactivity happens disconnect from serverand aplication reports error 'Communication link failure ...'Please, would you help me, if exists some way how to set up an interval ofthe connectivity between Client and Server. I wasn´t able to find it out inany help or manual.Thank you very much in advance!Pavel
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Aug 2, 2007
I am trying to setup an alert system for our new application. Idea is to create triggers on the tables that we need updates about. When a table changes trigger will be fired and that will send a change data message to a service on a
different sql server. That service will process the message and create an event in the notification services database. Notification service will later send an email or sms etc depeding on what is required.
Currently i got the message exchange working between two service in the same database. Now I am working on exchanging message between two SQL Servers with no luck. Can anyone please post an article on how to setup communications between two services on different servers.
I did try to expose service broker as an endpoint and create a route on the other server to call it? (This don't work)
Thanks,
Fahad
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Aug 14, 2007
Hi...
We had a setup that used to work up until about a month ago, and I'm just getting around to investigating it. A previously functioning Service Broker app exchanging messages between 2 boxes in a dev/qa environment stopped delivering messages.
Both endpoints are set up to use AUTHENTICATION=WINDOWS and have connect granted to public on both.
The sender side has all the messages piling up in the sys.transmission_queue. When I profile the exchanges, I see initiator -> target connection then the target trace gets
10054(An existing connection was forcibly closed by the remote host.)
and the initiator trace gets
Connection handshake failed. An OS call failed: (80090350) 0x80090350(The system detected a possible attempt to compromise security. Please ensure that you can contact the
server that authenticated you.). State 66.
I've checked that the login that's used to run the target Sql Server instance is in the security list for the initiator instance. I've checked that I can log into the initiator instance with the creds for that account. Both machines can see the domain controller.
I've googled on the "forcibly closed" message in the target trace but all I've found so far says that it's either
1) mismatched security
2) no connect on the endpoints
3) expired certificates.
None of which appear to apply here. Haven't found any message mixing "forcibly closed" with the latter message.
Any ideas?
Thanks
Mark
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Mar 7, 2007
I am running an SSIS packsge across 2 servers. There at 33 Mil rows being copied over. At 5.6 mil rows I get this
[OLE DB Source [1]] Error: An OLE DB error has occurred. Error code: 0x80004005. An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Protocol error in TDS stream". An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Communication link failure". An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "TCP Provider: An existing connection was forcibly closed by the remote host. ". An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Communication link failure". An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "TCP Provider: An existing connection was forcibly closed by the remote host. ". An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Communication link failure". An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "TCP Provider: The specified network name is no longer available. ".
[DTS.Pipeline] Error: The PrimeOutput method on component "OLE DB Source" (1) returned error code 0xC0202009. The component returned a failure code when the pipeline engine called PrimeOutput(). The meaning of the failure code is defined by the component, but the error is fatal and the pipeline stopped executing.
Is there any known cause of this?
Thanks
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Aug 28, 2006
Hai,
Iam using VC++ application to connect remote database(MSSQL) through network.
Everything works fine, if the network connection is active. If the network breaks and resumes, the application throws "Communication Link Failure" and do not get connected even after the network is resumed.
Client :
* Windows 2000 Professional
* MDAC 2.5
* VC++, using framework- CRecordset to access database
* PEER to PEER network configuration
* DSN through ODBC
Server :
* Windows 2000 Professional
* MDAC 2.8
* MSSQL Server
how to resume the database connection ??
Any one help me????
Thanks in advance,
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Jun 14, 2007
Hi Y'all,
When i alter 1 single value in my sql server 2000 sometimes i get following error:
1) [MICROSOFT][ODBC SQL SERVER DRIVER] Communication link failure
After clicking away:
2)CANNOT START MORE TRANSACTION ON THIS SESSION
Maybe someone can help me out on this?
Thanks!
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May 22, 2000
We replicate from London to New York and Hong Kong. The New York replication is working fine but everytime we try the Hong Kong replication it starts doing it but when it gets to the bulk copying stage it'll still keep going but on a random table will suddenly fail with a communication link failure message ?? It used to do this and because it keeps trying it used to eventually succeed but recently it never succeeds ?? It keeps trying but we end up having to stop it as it just doesn't succeed anymore ?? Our link to Hong Kong appears fine, we can ping and PC Duo into their servers.
Any ideas would be greatly appreciated as we can't think what it may be ??
thanks
Paul
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Sep 2, 2004
We have been seeing random inexplicable communication link failures when communicating with a Win2K SQL server for a while now. After a very detailed analysis of the various causes of the problem (network, name lookups, etc.), we've narrowed it down to possibly the ODBC driver. We are using TCP/IP.
I've stuck a packet sniffer on the connection between the SQL server and the client and in almost all cases, the connection suddenly terminates with the client sending a TCP reset to the server.
Looking at the packet traces further, it seems like in about 60% of the cases, there is period of activity on the TCP connection, then some inactivity during which there is a constant stream of TCP keepalives between the client and server and then suddenly the client resets the TCP connection.
Now, we can usually correlate this TCP reset to some new activity initiated on the client application, so could this be related to connection pooling in the ODBC? Thats the only inference I can obtain.
We are running Win2K SP3a on the server.
Any ideas on what else to look for or how to debug this further? I have 10GB of packet traces and can provide more details on the connection traces if necessary. The problem also is that we have ~100 clients constantly communicating with the SQL server and we will see anywhere from 10-20 random CLFs in a day.
I've searched the archives extensively and this does seem to be a problem for many people, but a few of them seem to have had genuine network problems and we've pretty much ruled that out since there are other simultaneous TCP connections between the client and the server and they seem to be okay.
Thanks,
TN
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Nov 15, 2007
Dear All,
I am facing one problem on my SQL server 2000.
While accessing some records from the database I am getting this error:
Microsoft OLE DB Provider for ODBC Drivers error '80004005'
[Microsoft][ODBC SQL Server Driver]Unable to load communication module. Driver has not been correctly installed.
I am using ODBC connection with sql authentication
How to solve this issue.
with regards
Shaji
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