rollback

问题 I'm working on an existing table that has data similar to: ID | Name | OldValue | NewValue these columns have data that is similar to: 14 | name | 'x=>y / zs / z where the old and new values show a change between values. What I'd like to do is split these so that this is the result: 15 | name | 'x=>y' | 'x=>s' 16 | name | 'z I need to safely split this row into two separate rows and then delete the existing data making sure that I'm able to roll back any changes should it hit the fan. My

问题 I incorrectly made a push to heroku and used heroku rollback to roll it back to a previous version. That worked fine in that my heroku app is now serving the rolled back version. But when a colleague who had pulled the "corrupted" push tried to checkout the "correct" version after the rollback, his git checkout from master branch is giving him the "corrupted" version and not the rolled back version. Any idea why Heroku rolled back the application but not the master git repo? 回答1: Ideally you

问题 I incorrectly made a push to heroku and used heroku rollback to roll it back to a previous version. That worked fine in that my heroku app is now serving the rolled back version. But when a colleague who had pulled the "corrupted" push tried to checkout the "correct" version after the rollback, his git checkout from master branch is giving him the "corrupted" version and not the rolled back version. Any idea why Heroku rolled back the application but not the master git repo? 回答1: Ideally you

问题 Is it possible to tell Spring to rollback for exception MyException as well as RuntimeException in the XML configuration while using @transactional ? I know it is possible to set the rollback for in the annotation but it seems redundant if I have lots of services that would all set the same exceptions. I saw peoples suggesting to create a custom transactional annotation but I'd prefer not to use a custom annotation and stick with a Spring one. I know that its possible to use advices but never

问题 I'm using MySQL 5.0.27 and am trying to get transactions to work. I followed this tutorial: http://dev.mysql.com/doc/refman/5.0/es/connector-net-examples-mysqltransaction.html and still cannot get these to work. The table I am trying to update is InnoDB and have tried to execute 'set autocommit=0' but it doesn't seem to be doing anything.... The code I've written is the following: public int transactionUpdate() { MySqlConnection connection = new MySqlConnection(connStr); connection.Open();

问题 I'm a beginner (actually complete newbie) to SQL transactions, so I may be missing something obvious. I have this SQL code, that I'm trying to run through phpMyAdmin : START TRANSACTION; INSERT INTO `users` VALUES(NULL, 'User A', 'user.a@example.com', '4', 'User A'); INSERT INTO `users` VALUES(NULL, 'User B', 'user.b@example.com', '3', 'User B'); ALTER TABLE `users` CHANGE `level` `level` TINYINT(3) UNSIGNED NOT NULL; ALTER TABLE `users` CHANGE `number` `number` INT(10) UNSIGNED NOT NULL;

问题 I'm using Hibernate + spring + @Transactional annotations to handle transactions in my application. Transaction manager is declared as follows: <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory"/> </bean> <tx:annotation-driven transaction-manager="transactionManager"/> This works well in most cases, but I've found a problem where I have 2 methods, both annotated @Transactional: package temp

问题 Automated instant rollback is an important feature of enterprise-grade deployment mechanisms. Currently, it's not possible to achieve this using Magento's built-in installation tools. Given that Magento's core_resource mechanism allows for the sequential execution of setup scripts for installation or upgrade of modules (via execution of SQL and also PHP), it seems logical IMHO that it should support the same process in reverse. Now, some obvious reasons not to support it: It would be

问题 I spent hours triying to do a rollback with EJB. I have a CDI controller where I want to remove some object. When I try to remove in EJB I get an exception and I Try to do rollback, but It does not work. Every SQL which has been execute with commit before get the exception does not rollback. Obviusly It is not because I get another exception when I try to do the rollback in BMT. Otherwise when I tried with CMT I get an exception of hibernate but I get the same results that BMT. My controller

问题 How Oracle Database rollback to the beginning of the PL/SQL block, but not the earlier DML instructions (I think all this come under one single transaction). Because when I try to ROLLBACK creating an exception handler all the instructions until last COMMIT are rolled back. create table mytable (num int not null primary key); insert into mytable values(1); // My ROLLBACK, rollbacks to here. begin // Oracle exception handler rollbacks to here. insert into mytable values(3); begin insert into