Distributed Transactions Between Servers On Different VLANs

Oct 18, 2006

Hi there,

I have two SQL servers, SERVERA and SERVERB. They are on two different VLAN's within our corporate network. They are physically only about 5 feet apart. SERVERA is SQL2005 while SERVERB is SQL2000. I am running a distruted transaction as a result of an insert on SERVERA which then causes a Stored procedure stored on SERVERA to insert a record on a table on SERVERB. I know my syntax is correct, 'cause I can get the Process to work between two servers (one SQL2000 and the other SQL2005) on the same VLAN. But when I run it in the problem environment, I get the following error message:

SQL Execution Error

Executed SQL Statement: INSERT INTO Tablea(recordid, recordtext) values(3, 'Testagain')

Error source: .Net SQLClient Data Provider

Error Message: The operation could not be performed because OLE DB provider "SQLNCL1" for linked server "SERVERB" was unable to being a distributed transaction.



I have checked to make sure that MSDTC is running and it is on both servers.

Any help would be greatly appreciated. Thanks! - Eric-



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How To Distributed Transactions

May 6, 2004

Hello,

does the .NET framework support distributed transactions somehow?

The SqlConnection/SqlTransaction classes doesn't seem to support them...

TIA. -julio

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May 24, 2001

Hi to everyone!
Any experience handling a Store Procedure that has distribution transactions?
Here is a story.

We have a store procedure #1 that inserts or updates data in two tables A and B on SQL Server 7.0 then it calls another store procedure #2 that:
1. updates C table in the same database on SQL Server from Oracle Server
2. deletes that record on Oracle Server
3. inserts a record on Oracle from table A
4. inserts the same record into table D on SQL Server from Oracle Server.

People who wrote store procedure #1 put Commit Tran before executing #2.
The questions are:
1. Is it correct that we don't have Commit Tran for #2?
2. What do you think about Nested Begin - Commit Tran?

Any help is highly appreciated.
Sima

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Aug 3, 1998

Does SQL Server actually support distributed transactions over, say, two tables in different databases but that reside on the same server? When I try to execute such a transaction in which one part of the transaction violates referential integrity and hence should not be executed, causing the rest of the transaction to, supposedly, rollback, the transaction does not roll back but instead produces an error message and executes the second, valid half of the transaction anyway.
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Mar 27, 2006

Hi There

I realize this is probably a basic question or at least i hope so but i cannot get distributed transactions working.

BOL is just driving me in circles.
I am running SS2000, MSDTC is up and running on the server.

I have added a trigger to a table where on insert or update the triggers fires and inserts a row to a remote server.

When i execute the update or insert i get the error:
Cannot start a distributed transaction.

I have tried stating BEGIN DISTRIBUTED TRANSACTION before the update but i get the same error, i have also read up on SET REMOTE_PROC_TRANSACTIONS, but this is not a remote sp.

Can anyone please reccomend a good link as to how to get distributed transactions to work.

Thanx

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Dec 12, 2001

I am using SQL server 7.0 and i have created oracle8i linked server(Using MSDAORA as provider) in it.
When i run distributed queries between SQl server and Oracle server it works fine.But when i try to run distributed transaction between two servers ( BEGIN DISTRIBUTED TRANSACTION..)it reports an error saying Distributed transactions are not supported by MSDAORA.

My question is; is it possible to run distributed transaction between SQL server and oracle server (where oracle server is a linked server in my SQL server)?


Actually i want to run this transaction in DTS package which updates and transfers data amongst various servers.


Thanx


Regards,

Rahul

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Nov 10, 2004

We just upgraded from SQL 7 to 2000 and for some reason I am unable to perform distributed transactions. I keep getting the following error:

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Nov 5, 2001

I am attempting to update an oracle table from a insert trigger on my SQL table. When using a trigger to run a sql command against the ole db oracle client (linked server) a distributed transaction is initiated and i get a message stating. "The operation could not be performed because the OLE DB provider 'MSDAORA' was unable to begin a distributed transaction."

I can update the oracle table through a query however just not throught a distributed transaction.

However according to all the documentation i can find it states that I should be able to perform this.

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Jan 22, 2008



Hello,

I've been redirected here from the Transaction Programming forum becuase I have e peculiar issue with SQL 2005 running INSERT stored procs from multiple WCF services all withing a TransactionScope.

The original post is http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2720665&SiteID=1&mode=1

The story goes, I have SRVC A with starts a TransactionScope which in turn calls SRVC B & C in sequence based on processing rules.

SRVC A is a Sequential Workflow which Starts and Completes the TransactionScope
SRVC B Creates a new Customer into the database
SRVC C Creates new Accounts for that Customer and Initialises the accounts with funds


The DB Tables underneath are Customer, Account and AccountLog

DDL




Code Block
CREATE TABLE [Member].[Customers](

[CustomerId] [int] IDENTITY(1,1) NOT NULL,
[Name] [varchar](32) NOT NULL,
[CreatedUtc] [datetime] NOT NULL ,


CONSTRAINT [PK_Customer] PRIMARY KEY CLUSTERED
(

[CustomerId] ASC
)

CREATE TABLE [Bank].[Accounts](

[AccountId] [int] IDENTITY(1,1) NOT NULL,
[CustomerId] [int] NOT NULL,
[CurrentBalance] [money] NOT NULL,
[LastUpdateDate] [datetime] NULL,
[CreatedDate] [datetime] NOT NULL,
[timestamp] [timestamp] NOT NULL,
CONSTRAINT [PK_Bank_Account] PRIMARY KEY CLUSTERED
(

[AccountId] ASC
)

) ON [PRIMARY]
GO
ALTER TABLE [Bank].[Accounts] WITH CHECK ADD CONSTRAINT [FK_Account_Customer] FOREIGN KEY([CustomerId])
REFERENCES [Member].[Customers] ([CustomerId])

CREATE TABLE [Bank].[AccountLog](

[AccountLogId] [int] IDENTITY(1,1) NOT NULL,
[AccountId] [int] NOT NULL,
[Amount] [money] NOT NULL,
[UtcDate] [datetime] NOT NULL,
CONSTRAINT [PK_Bank_AccountLog] PRIMARY KEY CLUSTERED
(

[AccountLogId] ASC
)
) ON [PRIMARY]
GO
ALTER TABLE [Bank].[AccountLog] WITH CHECK ADD CONSTRAINT [FK_AccountLog_Account] FOREIGN KEY([AccountId])
REFERENCES [Bank].[Accounts] ([AccountId])






NB. I've removed most fields not essential for this example.

So from SRVC A I invoke SRVC B and the Customer is created, however when I get to SRVC C and the accounts are to be created I get a lock. Only when the Transaction aborts due to timeout, do I see in SQL Profiler that the call to the SP that created the Account is executed but eventually rolls back as it is part of the distributed transaction.

Now, If I set the Isolation level in the TransactionScope to ReadUncommitted (urgh) the problem remains. When I set the IsolationLevel to Read Uncommitted in the SP that creates the account the problem remains but when I remove the FK constraint the problem disappers. The other curious thing is that with the Customer -> Account FK removed and when SRVC C calls to insert funds into the AccountLog which also updates an aggregated total in the Account from within the same transaction scope and with Account -> AccountLog FK constraints in place there is no locking even with Isolation Serializable.

I'm quite at a loss as to what could be causing these issues. If anyone has any suggestions I would greatly appreciate any help.

Thanks

Andy

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Oct 17, 2006

Hi there,

We have two servers, one (we'll call 'SERVERA') has SQL2005 running on it. The second (we'll call 'YELLOWSTEONE') is running both SQL2000 and SQL2005 on it. The SQL instances on YELLOWSTONE are 'YELLOWSTONESQL2000' and 'YELLOWSTONESQL2005'. As a linked server, I have an entry for YELLOWSTONE which then links to the SQL Server of YELLOWSTONESQL2000 on the server network name of YELLOWSTONE. By them selves they seem to run fine. However, if I have trigger that Runs on SERVERA to do a distributed transaction on 'YELLOWSTONESQL2000', I get the following error:

OLE DB provider "SQLNCLI" for linked server "YELLOWSTONE" returned message "Login timeout expired".

OLE DB provider "SQLNCLI" for linked server "YELLOWSTONE" returned message "An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections.".

Msg 2, Level 16, State 1, Line 0

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If You can provide me any assistance, I would greatly appreciate it. Thanks! - Eric -

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Error:
OLE DB provider "SQLNCLI10" for linked server "SERVERNAME.REDMOND.CORP.MICROSOFT.COM" returned message "No transaction is active.".
Msg 7391, Level 16, State 2, Line 3
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begin distributed transaction
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 ROLLBACK
 
Source server :   
Microsoft SQL Server 2008 (RTM) - 10.0.1779.0 (X64)
       Nov 12 2008 12:10:04
       Copyright (c) 1988-2008 Microsoft Corporation
       Enterprise Edition (64-bit) on Windows NT 6.0 <X64> (Build 6001: Service Pack 1) (VM)
 
Target server :   
Microsoft SQL Server 2008 (RTM) - 10.0.1600.22 (Intel X86)
       Jul  9 2008 14:43:34
       Copyright (c) 1988-2008 Microsoft Corporation
       Enterprise Edition on Windows NT 5.2 <X86> (Build 3790: Service Pack 2)

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BEGIN

BEGIN TRANSACTION

BEGIN TRY

---
procedure stuff here
---
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END TRY



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SET @ErrorNumber = ERROR_NUMBER()

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END CATCH



END


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If I had a table F0101, datasource = AS400JDE and linked server of AS400

How would I query it.

I gave tried AS400.AS400JDE.DBO.F0101, but i get the following error message.
OLE DB provider 'MSDASQL' does not contain table '"as400jde"."dbo"."f0101"'.

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Distributed Queries

Jan 20, 2000

i added a linked sql 7 production server to my sql 7 development server so i could perform some data comparisons between the two
servers. after i linked in the server, i was able to see all the icons for the various tables in the production server. i went to query
analyzer and executed the following openquery:

select * from openquery(itdev_s08, 'select * from dbo.tablename')

it returned all the rows in the table. however, i want to comapre several different values so i needed a better way to query.
i then decided to try the distrbuted query below:

select * from linkedserver.dbname.dbo.tablename

however instead of a result set i got the error message below:

Server: Msg 7314, Level 16, State 1, Line 1
OLE DB provider 'SQLOLEDB' does not contain table '"dbname"."dbo"."tablename"'.

i went to BOL and it told me the only reason i would get this error is if the object did not exist or if i did not have permission
to use it. however, i know the object exists and i have the appropriate permission becuase i can obtain a result set from the
first query in the same query analyzer window. is my syntax incorrect? what am i doing wrong?

thanks!
tammy moisan

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Distributed Query

Feb 4, 2004

Hi,

I am trying to execute a proc on Linked Server. Now as the Linked server name starts with 2, all of the following fails...

Any help to make it work highly appreciated...

exec [2Kxyz.SQLJobMon.dbo.usp_SQLAlertSMTPEmail]

exec 2Kxyz.SQLJobMon.dbo.usp_SQLAlertSMTPEmail

exec "2Kxyz.SQLJobMon.dbo.usp_SQLAlertSMTPEmail"

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