rollback

问题 Let's say we have a code like the following (I got the code frome here): @Transactional private def unitaryOperationUpdate { Integer roleId = params.roleSelector.toInteger() def roleInstance = Role.findById(roleId) UserRol.removeAll userInstance UserRol.create userInstance, roleInstance } If some error happened between removeAll and create, how could we check ourselves if the rollback is working properly? 来源： https://stackoverflow.com/questions/18548026/how-to-check-if-a-transactional-method

问题 I'm not sure if I'm asking the correct question to begin with, apologies in advanced. Question I am wondering if it is possible to have some type of handler to rollback an erroneous transaction in Hibernate. I am having a problem which, whenever an error comes up during a batch update from Hibernate the "SET TRANSACTION must be first statement of transaction" error comes up and I would not be able to do any other query after that. Thanks :) 回答1: Hibernate don't have an automatic transaction

问题 I am using mule request response VM and need the rollback messages to be reprocessed by VM in case of some exceptions, say connection issues. However, the rollback exception strategy does not appear to work when I use exchange pattern as request response for VM. The reason I used request response is I need way to know when all my VM messages have been processed and initiate another task after that. I think the behavior is that when there is an exception, the rollback strategy catches the

问题 If I update to the iPhone SDK 3.2 beta, will I then be able to rollback to iPhone SDK 3.1.2 (xcode 3.2.1) ? 回答1: You can install new SDKs in non-/Developer paths. This is what you should do with any new, NDA-PROTECTED SDKs. Perhaps /Developer-Beta. 来源： https://stackoverflow.com/questions/2151159/how-to-rollback-from-ipad-beta-sdk-to-iphone-sdk-3-1

问题 The Mysqli documentation indicates that if the call autocommit(false) returns true, it was successful in disabling the automatic committing of queries. Still, if I try to rollback the transaction, created like the following code, the information remains deleted. $dbConn= new mysqli($host, $user, $pass, $db) or die('Could not connect'); $dbConn->autcocommit(false); //returns true $dbConn->query($deleteQuery); $dbConn->query($deleteQuery2); $dbConn->rollback(); What could go wrong in this

问题 I have an Items table & an Items_Log table to log all changes to the Item table. CREATE TABLE [dbo].[Items] ( [item_id] [int] IDENTITY(1,1) NOT NULL, [item_name] [varchar](50) NOT NULL, [item_desc] [varchar](250) NULL, [modified_by_id] [int] NOT NULL, [modified_date] [datetime] NOT NULL ) CREATE TABLE [dbo].[Items_Log] ( [item_log_id] [int] IDENTITY(1,1) NOT NULL, [item_id] [int] NOT NULL, [item_name] [varchar](50) NOT NULL, [item_desc] [varchar](250) NULL, [modified_by_id] [int] NOT NULL,

问题 I need to rollback a specific table as I forgot to mention foreign key. and I dont want my data loss from all tables. My framework is Laravel 5.4 Thanks in Advance Everyone 回答1: Migrations are meant to be applied and rolled back in a specific order. Therefore there is no "proper" way of reapplying an arbitrary migration. In any case there are at least two options: "Fail forward" - create a subsequent migration that creates a necessary FK and apply it. This is the only proper way if you are

问题 I have a windows forms application that executes some sql scripts in a database at the click of a button.These sql scripts do user creation, and giving some permissions like data execute, data read/write etc.. Here is my sample c# code for doing this: script1 = "CREATE USER " + username + " FROM LOGIN " + username; script2 = @"CREATE ROLE [db_execute] AUTHORIZATION [dbo] GRANT EXECUTE TO [db_execute]"; script3 = @"DECLARE @rolename varchar(max) SET @rolename ='{0}' EXEC sp_addrolemember N'db

问题 I have rolled back already using this command git reset --hard HEAD^ to some previous commit, all I want to do is rollforward I know this isn't the correct term to what would be my commit that I did latest. Whats happening is a bunch of files were deleted when I used that command and now I don't know how to get back. I am using github is there a way to just pull down from github and overwrite the current directory? 回答1: Looking at your question, the commit you want to retrieve is the current

问题 I'm trying to setup a dummy example of jdbc transaction to test commit and rollback. Here I've got : an http entrypoint to start flow, an insert on db a component that throw and exception an update on db. I expect that after component exception insert were rollback but it doesn't. Debugging mule source I've seen that in class BeginAndResolveTransactionInterceptor the insert statement terminate with a commit because resolveStartedTransaction property is set to true. This is why in default