Reversing Transactions In The SQL Transaction Log
Mar 24, 2008
Okay, another esoteric question for ya:
My client recently (well, the middle of January, anyway) attempted to restore their year-end backup to do some reporting, only to find that the backup file was corrupted and unrestorable. They do have earlier monthly backups, but they do not keep transaction log backups past those monthly backups (i.e. transaction log backups for November are discarded once the monthly full backup has been completed).
My question is this: is there any way to restore the month-end backup from January, then read the transaction log backups for the month of January to undo January's transactions?
This is a highly business-critical issue; they are going to be in a lot of hot water with the SEC if they can't produce the financials stored in the DB.
This is a SQL 2000 SP4 database.
Thanks!
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Mar 24, 2008
Okay, another esoteric question for ya:
My client recently (well, the middle of January, anyway) attempted to restore their year-end backup to do some reporting, only to find that the backup file was corrupted and unrestorable. They do have earlier monthly backups, but they do not keep transaction log backups past those monthly backups (i.e. transaction log backups for November are discarded once the monthly full backup has been completed).
My question is this: is there any way to restore the month-end backup from January, then read the transaction log backups for the month of January to undo January's transactions?
This is a highly business-critical issue; they are going to be in a lot of hot water with the SEC if they can't produce the financials stored in the DB.
This is a SQL 2000 SP4 database.
Thanks!
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Nov 14, 2006
I'm receiving the below error when trying to implement Execute SQL Task.
"The ROLLBACK TRANSACTION request has no corresponding BEGIN TRANSACTION." This error also happens on COMMIT as well and there is a preceding Execute SQL Task with BEGIN TRANSACTION tranname WITH MARK 'tran'
I know I can change the transaction option property from "supported" to "required" however I want to mark the transaction. I was copying the way Import/Export Wizard does it however I'm unable to figure out why it works and why mine doesn't work.
Anyone know of the reason?
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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 10, 2007
Greetings,
I have a requirement from the client that specifies to rollback every insert/update that happenned in the package if any task (control or data flow) fails.
I'm certain the SSIS package-level transactions take care of this, however, in this package, there is an OLE DB Transformation that executes a stored procedure which has a transaction in itself.
so to draw a quick picture...
Package
{
Transaction1
{
Data Flow
{
OLE DB Transformation
{
Stored Procedure
{
Transaction2
{
}
}
}
}
}
}
Here's my question:
What would happen if an error occured in the stored procedure (Transaction2)?
Does it behave like SQL Server 2005 where, given a scenario of nested transactions, the innermost transaction is comitted and the outermost transaction is rolled back?
I'm hoping that if the stored procedure decides to rollback Transaction 2 via error handling or if an SQL error occurs that I can rollback Transaction 2 and log an entry in the audit log.
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Apr 22, 2014
I have a update trigger. In this trigger I need to insert few records in 3 tables. If error comes in any of these inserts then previous inserts to get committed. This trigger was written in Sybase and it was possible to create transaction and commit the transactions.
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Jul 20, 2005
We are having a really big problem with a zombie process/transactionthat is blocking other processes. When looking at Lock/ProcessIDunder Current Activity I see a bunch of processes that are blocked byprocess 94 and process 94 is blocked by process -2. I assume -2 is azombie that has an open transaction. I cannot find this process tokill and it seems that this transaction is surviving databaserestarts. I know which table is locked up and when I run a select *from this table it never returns. Does anyone have any ideas as tohow to kill is transaction.Any help is appreciated.A. Tillman
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Jun 14, 2007
I'm trying to create a transaction replication from SQL Server 2000 to 2005. Basic replication between the servers works just fine. However, what I want to accomplish is to be able to skip some of the transactions. Example - from time to time we want to purge some of the historical data from the main database (the publisher). We don't want the same purging to occur on the destination database, which will be used for reporting purposes and needs to include all the historical information. I wanted to simply stop the replication log reader, purge the records, backup the transaction log with truncation and then restart the reader. The only problem - the truncation on the replicated database keeps the transactions of the purging until they are replicated, so the transaction log backup doesn't help. Any ideas would be greatly appreciated!
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Mar 5, 2015
I vaguely remember reading somewhere that all distributed transactions are executed at Serializable Isolation Level "under the covers."
1. Is this true?
2. What does "under the covers" mean in this case; i.e. will I not see the isolation level represented accurately in requests?
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Oct 23, 2015
I'm investigating a poorly performing procedure that I have never seen before. The procedure sets the transaction isolation level, and I suspect it might be doing so incorrectly, but I can't be sure. I'm pasting a bastardized version of the proc below, with all the names changed and the SQL mucked up enough to get through the corporate web filters.
The transaction isolation level is set, but there is no explicit transaction. Am I right that there are two implicit transactions in this procedure and each of them uses snapshot isolation?
SET NOCOUNT ON;
SET TRANSACTION ISOLATION LEVEL SNAPSHOT;
DECLARE @l_some_type varchar(20),
@some_type_code varchar(3),
@error int,
@error_msg varchar(50);
[Code] .....
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Nov 1, 2007
Goofed up and ran an update query. It messed up all the data in a single table. I'm trying not to restore the table from a previous backup since the backup is more than 20 GB. It's going to take forever to restore it. Any advice would be much appreciated!
Thanks!
Charles.
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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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Mar 19, 2007
create a function to reverese a string pass it abcd and it returns dcba
you can't use the built in reverese function...
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Apr 5, 2006
Hi,How can I remove a part of string from complete string in SQL?this is something i want to do:update aceset PICTURE = PICTURE - '\SHWETABHShwetabhI'But here ' - ' is not allowed.How can I remove the string \SHWETABHShwetabhI from the columnPICTURE?Regards,Shwetabh
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Feb 26, 2004
Any idea how I can *blush* get my database server registration wizard back after checking the box next to the prompt "From now on I want to perform this task without using a wizard"?
I KNOW it said "from now on", but I didn't think it MEANT it ;)
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Nov 5, 2007
I have a stored procedure which returns 3 different kind of values. I am checking whether a certain value entered by user is present in one of the columns of database table. Accordingly the SP returns 1 if present, -1 if not present and third value is SQL server 2005 error.But the problem is that I am only getting -1 everytime even if the value is present.I executed the SP alone to find out if it is the one which is returning the INCORRECT value. I found that that SP is returning the correct value.Therefore I came to the conclusion that it is the Table ADapter which got corrupted.I deleted the TableAdapter and created it again, but then it didn't solve the problem.I have now run out of ideas.
The code of the SP is:ALTER PROCEDURE spcheck_ServerName
(@Server_Name nvarchar(50)
)
ASDECLARE @Result int
IF EXISTS
(
SELECT
NULL
FROMServerDetails WITH (UPDLOCK)
WHERE
[SERVER NAME] = @Server_Name
)
BEGINSELECT @Result = 1
END
ELSE
BEGIN
SELECT @Result = -1
END
IF @@ERROR <> NULL
BEGIN
SELECT @Result = @@ERROR
END
RETURN @Result
And I am calling the tableAdapter method in the code behind file of the web form in the following manner:private int chkServerName(string sname1)
{
try
{Serverlist1TableAdapters.SERVERDETAILSTableAdapter nwAdapter = new Serverlist1TableAdapters.SERVERDETAILSTableAdapter();
int snval = (int)nwAdapter.spcheck_SName(sname1);return snval;
}catch (Exception ex)
{return ex.GetHashCode();
}
}
Any help will be greatly appreciated.
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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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May 31, 2008
Hi All
I'm getting this when executing the code below. Going from W2K/SQL2k SP4 to XP/SQL2k SP4 over a dial-up link.
If I take away the begin tran and commit it works, but of course, if one statement fails I want a rollback. I'm executing this from a Delphi app, but I get the same from Qry Analyser.
I've tried both with and without the Set XACT . . ., and also tried with Set Implicit_Transactions off.
set XACT_ABORT ON
Begin distributed Tran
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.TRANSACTIONMAIN
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.TRANSACTIONMAIN
set REPFLAG = 0 where REPFLAG = 1 and DONE = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.WBENTRY
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.WBENTRY
set REPFLAG = 0 where REPFLAG = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.FIXED
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.FIXED
set REPFLAG = 0 where REPFLAG = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.ALTCHARGE
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.ALTCHARGE
set REPFLAG = 0 where REPFLAG = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.TSAUDIT
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.TSAUDIT
set REPFLAG = 0 where REPFLAG = 1
COMMIT TRAN
It's got me stumped, so any ideas gratefully received.Thx
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Feb 22, 2007
I have a design a SSIS Package for ETL Process. In my package i have to read the data from the tables and then insert into the another table of same structure.
for reading the data i have write the Dynamic TSQL based on some condition and based on that it is using 25 different function to populate the data into different 25 column. Tsql returning correct data and is working fine in Enterprise manager. But in my SSIS package it show me time out ERROR.
I have increase and decrease the time to catch the error but it is still there i have tried to set 0 for commandout Properties.
if i'm using the 0 for commandtime out then i'm getting the Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.
and
Failed to open a fastload rowset for "[dbo].[P@@#$%$%%%]". Check that the object exists in the database.
Please help me it's very urgent.
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Feb 6, 2007
I am getting this error :Distributed transaction completed. Either enlist this session in a new
transaction or the NULL transaction. Description:
An unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the error and
where it originated in the code. Exception Details:
System.Data.OleDb.OleDbException: Distributed transaction completed. Either
enlist this session in a new transaction or the NULL transaction.have anybody idea?!
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Dec 22, 2006
i have a sequence container in my my sequence container i have a script task for drop the existing tables. This seq. container connected to another seq. container. all these are in for each loop container when i run the package it's work fine for 1st looop but it gives me error for second execution.
Message is like this:
Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.
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Jan 8, 2008
Hi,
i am getting this error "Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.".
my transations have been done using LINKED SERVER. when i manually call the store procedure from Server 1 it works but when i call it through Service broker it dosen't work and gives me this error.
Thanks in advance.
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Jun 10, 2015
I have Full database backup upto previous day and transaction logfile of Today transaction. my database has crashed. I have restored previous day's Full backup. I have faced difficulty to restore today's transaction from today's transaction log. What are the steps to restore full database back and one day's transaction log file. Note: there is no differential database backup and transaction backup.
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Jul 11, 2007
I want to list out the pending transaction for transaction replication by publication.
Help needed.
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Jul 27, 2015
I created a Calculated measure in cube something like this : ([TransType].[TransTypeHierarchy].[TransTypeCategoryParent].&[SPEND],[Measures].[Transaction Amount]). To get only spend transactions. Now, I want to slice this measure with same hierarchy to find the amount distribution across different transaction types under spend transaction. But this query behaving like the measure doesn't have relation with measure.
you can think this as below query:
WITH
MEMBER SPEND AS ([TransType].[TransTypeHierarchy].[TransTypeCategoryParent].&[SPEND],[Measures].[Transaction Amount])
SELECT NON EMPTY {SPEND} ON 0
,NON EMPTY ([TransType].[TransTypeHierarchy].[TransTypeCategoryParent]) ON 1
FROM [CUBE]
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Jun 1, 2007
Hi
How do I make use of begin transaction and commit transaction in SSIS.
As am not able to commit changes due to certain update commands I want to explicitly write begin and commit statements. but when i make use of begin and commit in OLEDB commnad stage it throws an error as follows:
Hresult:0x80004005
descriptionyntax error or access violation.
its definately not an syntax error as i executed it in sql server. also when i use it in execute sql task out side the dataflow container it doesnt throw any error but still this task doesnt serve my purpose of saving/ commiting update chanages in the database.
Thanks,
Prashant
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Oct 10, 2005
Error returned when trying to commit the transaction to a database that is a replication distributor. (sql2005 ctp16)
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Jun 1, 2006
Hi,
I am having some problem with SSIS transaction. Eventhought I tried to imitate the concept that Jamie presented at http://www.sqlservercentral.com/columnists/jthomson/transactionsinsqlserver2005integrationservices.asp
. My workflow is as followed
*********************************
For Each ADO.Record in Oracle (transaction=not supported)
If (Certain_Field_Value = 'A')
Lookup Data in SQL DB with values from Oracle (transaction=not supported)
DO Sequence A (Start a Transaction , transaction=required)
INSERT/UPDATE some records in SQLDB(transaction=supported)
Finish Sequence A ( transaction should stop here)
UPDATE Oracle DB ( Execute SQLTask, transaction=not supported)
If (Certain_Field_Value = 'B')
Lookup Data in SQL DB with values from Oracle (transaction=not supported)
DO Sequence B (Start a Transaction , transaction = required)
INSERT/UPDATE some records in SQLDB (transaction=supported)
Finish Sequence A ( transaction should stop here)
UPDATE Oracle DB ( Execute SQLTask, transaction=not supported)
If (Certain_Field_Value = 'C')
------------
------------
End ForEach Loop
*************************************
My requirements are that I want separate transaction for each Sequence A, B, C, etc... If Sequence A transaction fails, the other should still be continuing with another transaction.
But I am getting an error regarding the OLEDB Error in next Task (e.g in Certain_Field_Value = 'B') "Lookup Data in SQL DB with values from Oracle ", the error message is ".......Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction. ".
What is it that I am doing wrong?
Regards
KyawAM
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Nov 28, 2004
I'm getting this error:
The operation could not be performed because the OLE DB provider 'SQLOLEDB' was unable to begin a distributed transaction.
[OLE/DB provider returned message: New transaction cannot enlist in the specified transaction coordinator. ]
OLE DB error trace [OLE/DB Provider 'SQLOLEDB' ITransactionJoin::JoinTransaction returned 0x8004d00a].
http://support.microsoft.com/kb/839279 this didn't help
any suggestions?
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Oct 11, 2000
I am executing a stored procedure something like this
Create Procedure TEST
@test1
@test2
AS
BeGIN TRANSACTION ONE
SELECT...
UPDATE..
....
....
....
TRUNCATE
etc and lot of Select,update and delete statements like this
.....
COMMIT TRANSACTION ONE
The Block of code which I have b/w BEGIN TRANSACTION AND COMMIT TRANSACTION ..Will it be rolled back
if it encounters any errors in the SELECT,UPPDATE,DELETE ..statements which I have with the transaction one.
IF not How do I roll back if it encounters any erros b/w the BEGIN TRANSACTION and END TRANSACTION.
Thanks
micky
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Apr 18, 2005
Hi all,
In my ASP application, I've been using this code:
----------------------------------------------
dim conn, connectionstring
connectionstring= "Provider=SQLOLEDB.1; Data Source = blahblah; Initial Catalog = abc; User Id = osss; Password=xxx"
set conn = server.CreateObject("adodb.connection")
conn.open connectionstring
----------------------------------------------
It's just basically to set up the connection to the SQL server, it works on my other pages, but on a few pages, the last line (conn.open connectionstring) triggers this error:
"Microsoft OLE DB Provider for SQL Server error '8004d00a'
New transaction cannot enlist in the specified transaction coordinator. "
I've never encountered this error before and I couldn't think of any solution... please help!!!
Thanks so much,
Annie
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Sep 24, 2007
I had thought that if any statement failed within a BEING TRANS .. COMMIT TRANS block, then all the statements would be rolled back. But I am seeing different behavior (SQL Server 2000 8.00.2039)
For instance, run these statements to set up a test:
--DROP TABLE testTable1
--DROP TABLE testTable2
CREATE TABLE testTable1 (f1 varchar(1))
CREATE TABLE testTable2 (f1 varchar(1))
CREATE UNIQUE INDEX idx_tmptmp ON testTable1 (f1)
insert into testTable1(f1) values ('a')
So table testTable1 has a unique index on it..
Now try to run these statements:
--DELETE FROM testTable2
BEGIN TRANSACTION
insert into testTable1(f1) values ('a')
insert into testTable2(f1) values ('a')
COMMIT TRANSACTION
SELECT * FROM testTable2
..the first insert fails on the unique index.. but the second insert succeeds. Shouldn't the second insert roll back? How can I make two operations atomic?
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Feb 1, 2007
Hi,On My local SQL server I have added a linked server to another SQLserver (remoteserver) in another Windows NT Domain.When I run this codeselect count(*) from remoteserver.mosaics.dbo.LocationThis works fine.However when I usebegin transactionselect count(*) from remoteserver.mosaics.dbo.LocationIt errors out saying thatThe operation could not be performed because the OLE DB provider'SQLOLEDB' was unable to begin a distributed transaction.New transaction cannot enlist in the specified transactioncoordinator. ]OLE DB error trace [OLE/DB Provider 'SQLOLEDB'ITransactionJoin::JoinTransaction returned 0x8004d00a].My question is even though I am just reading data from theremoteserver, why does the local transaction get promoted to adistributed transaction.Any help will be grately appreciated.TIA...Rohit
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