rollback

easy transactions using spring jdbc ?

I am working on a java app that uses Spring IOC and JDBC Template classes. I have a DAO class that has 4 methods : m1() to m4(). m1 performs multiple inserts and updates on table t1, m2 on table t2, m3 on t3, etc. The dao methods are used as follows: while(true) { //process & generate data dao.m1(data1); dao.m2(data2); dao.m3(...

How to raise an ActiveRecord::Rollback exception and return a value together?

I have a model that uses a acts_as_nested_set fork, and I've added a method to the model to save the model and move the node into the set in one transaction. This method calls a validation method to make sure the move is valid, which returns true or false. If the validation fails, I want my save method to raise ActiveRecord::Rollback to ...

How to rollback a transaction in Entity Framework.

string[] usersToAdd = new string[] { "asd", "asdert", "gasdff6" }; using (Entities context = new Entities()) { foreach (string user in usersToAdd) { context.AddToUsers(new User { Name = user }); } try { context.SaveChanges(); //Exception thrown: user 'gasdff6' already exist. } catch (Exception ...

In mercurial, how do I apply a reverse-patch to a particular file?

Related to http://stackoverflow.com/questions/1078881/mercurial-merging-one-file-between-branches-in-one-repo , I'm trying to perform a backout operation on a single file, even though that file was one of many participants in the revision being backed out. HG being the changeset-oriented tool that it is, it doesn't want to operate on fi...

Who is right? - SQL Rollback Question

Hi together, a few minutes ago I had a discussion with my boss and want now more meanings, if I am wrong or he is. Following problem is given: After a fast change from a colleague a stored procedure went wrong. (I think for the theory here is no more information requiered) We decide to provide the correct version in an Update Script: ...

IDbTransaction Rollback Timeout

I am dealing with an interesting situation where I perform many database updates in a single transaction. If these updates fail for any reason, the transaction is rolled-back. IDbTransaction transaction try { transaction = connection.BeginTransaction(); // do lots of updates (where at least one fails) transaction.Commit();...

Rollback insert statement.

Hi, I have inserted some records in one of my table which are upto 5000. But now i realize that these records should not be inserted in this table. I can't delete the records one by one. Or can't distinguish the inserted records for the previous records in the table. How can i rollback this insert statement, so that my table return t...

Access Transactions in Code with Commit and Rollback

I've been asked to try to roll back some database changes if there was an error. Before I even start trying to use a TRANSACTION with either COMMIT or ROLLBACK, could someone tell me if I can do the following in MS Access? void Start() { try { AccessDatabaseOpen(); // Opens the access database foreach (File in FileList) { ...

Custom Installer class , rollback method never called.

Hi guys. I am having an installer class , Here is a snippet: [RunInstaller(true)] public partial class ServerWrapInstaller : Installer { public override void Install(IDictionary stateSaver) { EventLog.WriteEntry("Installer", "Install", EventLogEntryType.Information); base.Install(stateSaver); } public o...

Implement data rollback in existing CRUD app

I have an existing CRUD app that I have been tasked with implementing "tomb stoning". I need a way to allow a user to roll a given page of data back to the previous state. Say I have First Name, Last Name, and Social Security Number on a page in this app. User A updates the Last Name field. Later, User B notices that the New Last Nam...

Allowing user to rollback from db audit trail with SQLAlchemy

I'm starting to use SQLAlchemy for a new project where I was planning to implement an audit trail similar to the one proposed on this quiestions: http://stackoverflow.com/questions/328898/implementing-audit-trail-for-objects-in-c http://stackoverflow.com/questions/315240/audit-trails-and-implementing-sox-hipaa-etc-best-practices-for-se...

NullPointerException while adding data to the database from online page

Hi All, I am getting a NullPointerException Exception while adding data from the online JSP page. The error description is as follows: javax.transaction.TransactionRolledbackException: CORBA TRANSACTION_ROLLEDBACK 0x0 No; nested exception is: org.omg.CORBA.TRANSACTION_ROLLEDBACK: javax.transaction.TransactionRolledbackException: ; ne...

Problem with Rolling back a linq2sql insert transaction in C#

Hi, i am trying to insert the contents of a CSV file into a database table using linq2SQL. I want to be able to rollback the transaction if ANY of the inserts fail but when i try with this code i get the following error at - db.Transaction.Commit() System.InvalidOperationException was unhandled: This SqlTransaction has completed; it is...

Version Roll Back

I am doing a concept in linux in which i want to do version rollback for an app installed in linux. Is it possible?? For eg I have an application named X with version 1.1 I get an update. It changes it to version 1.2 I note what all the packages in the app going to be modified. Then i save them and apply the changes. Now after sometime ...

How do you prevent database changes inside a Rails ActiveRecord before_create filter from getting rolled back when it returns false?

I've added a before_create filter to one of my Rails ActiveRecord models and inside that filter I'm doing some database updates. Sometimes I return false from the filter to prevent the creation of the target model, but that is causing all the other database changes I made (while inside the filter) to get rolled back. How can I preven...

Hibernate constraint violation/error rolling back

I have encountered a strange error with hibernate, most likely due to improper use of it, but I was wondering if there is any way to find the root cause of it and perhaps remedy it. Currently I have a class hierarchy that looks like: @Entity @Inheritance(strategy = InheritanceType.JOINED) @Table(name = "tbl_class_a) public ClassA { ...

duplicate key error does not cancel/rollback mysql transaction

When in a mysql innodb transaction, I would expect a duplicate key error to cause a rollback. It doesn't, instead it simply throws an error and continues on to the next command. Once the COMMIT command is reached, the transaction will be committed, sans the duplicate key causing command. Is this the expected behaviour? If so, how would ...

Dealing with RollbackException in Java

Hey, Is there any way to "replay" transaction? I mean, sometimes I get RollbackException and rollback the transaction. Can I then "clone" the transaction and try again, or once rollback is called, transaction is lost? I really need the changes, and really don't want to trace every change for rerunning later... thanks, udi ...

Recover from SQL batch-abort errors inside a transaction? Alternative?

I'm looking for a way to continue execution of a transaction despite errors while inserting low-priority data. It seems like real nested transaction could be a solution, but they aren't supported by SQL Server 2005/2008. Another solution would be to have logic to decide if an error is critical or not, but it would seem that's not possibl...

How implement Rollback feature ?

I want to create a C# application in which copy some files in two diffrent folders(already contains older version files) and also run sql scripts. During whole process if any exception generate i need to rollback all the changes. For sql scripts, transation can be used but how implement files copying process with rollback? ...