rollback

问题 I have a code like below public abstract class AffltTransactionService implements IAffltTransactionService { .... @Override @Transactional public void processTransactions(List<? extends AffltTransaction> transactions) { for (AffltTransaction transaction : transactions) { if (transaction != null) { processTransaction(transaction); } } } private void processTransaction(AffltTransaction transaction) { try { processTransactionInternal(transaction); } catch (Exception exception) {

问题 I've read the online php manual but I'm still not sure of the way these two functions work: mysqli::commit & mysqli::rollback. The first thing I have to do is to: $mysqli->autocommit(FALSE); Then I make some queries: $mysqli->query("..."); $mysqli->query("..."); $mysqli->query("..."); Then I commit the transaction consisting of these 3 queries by doing: $mysqli->commit(); BUT in the unfortunate case in which one of these queries does not work, do all 3 queries get cancelled or do I have to

问题 I updated my PhpMyAdmin database engine from MyISAM to INNODB to allow rollback. This is my SQL query : START TRANSACTION; UPDATE jkm_content SET state=0 WHERE title IN ('title-1','title2'); And the result : start transaction;# MySQL returned an empty result set (i.e. zero rows). UPDATE jkm_content SET state=1 WHERE title IN ('title-1','title2');# 2 rows affected. 1) So the statement informs me that 2 rows are affected but the change doesn't appear anywhere (neither in my DB nor in the

问题 I accidentally deleted some huge number of rows from a table... How can I roll it back? I executed the query using PuTTY. I'll be grateful if any of you can guide me safely out of this... 回答1: If you didn't commit the transaction yet, try rollback . If you have already committed the transaction (by commit or by exiting the command line client), you must restore the data from your last backup. 回答2: If you haven't made a backup, you are pretty much fudged. 回答3: A "rollback" only works if you

问题 I've had the following TFS issue: I've created the new branch from MAIN branch. During the time some changesets (let specify them from CS-1 to CS-2) have happened on the new branch. In one moment I had modification on MAIN branch and this modification has been merged on the new branch (new changeset on branch: CS-3). After that, new branch was having several changes (which produced changesets from CS-4 to CS-5). Also, I did a rollback of CS-3 and as result the new changeset CS-6 has been

问题 I am call two methods, the first one update a table and the next one insert a record in another table. When the second transaction fails the EJB is not doing the rollback of the first transaction. This is my backing bean: @ManagedBean @ViewScoped public class TransactionTestBean implements Serializable { @EJB private TransactionTestService service; public String loadView() { return "/test/transactionTest"; } public void test() { try { service.updateTest(); } catch (Exception e) { } } } The

问题 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 e) { //Roll back all changes including the two previous users. } Or maybe this is done automatically, meaning that if error occurs, committing changes are canceled for all the changes. is it? 回答1: OK I

问题 I need to make MySQL server to rollback transaction immediately after its client disconnected, because each client works concurrently. The problem can be reproduced like these (using an innodb table type) On Client A: START TRANSACTION; SELECT MAX(ID) FROM tblone FOR UPDATE; #... then disconnect your connection to the server On Client B: START TRANSACTION; SELECT MAX(ID) FROM tblone FOR UPDATE; #... lock wait time out will occur here I had set MySQL's server option like innodb_rollback_on

问题 I'd like to rollback a change I made recently in TFS. In Subversion, this was pretty straightforward. However, it seems to be an incredible headache in TFS: Option 1: Get Prior Version Manually get prior version of each file Check out for edit Fail - the checkout (in VS2008) forces me to get the latest version Option 2: Get TFS Power Tools Download Team Foundation Power Tools Issue rollback command from cmd line Fail - it won't work if there are any other pending changes Option 3: Manually

问题 In SQL Server, if a transaction involving the inserting of a new row gets rolled back, a number is skipped in the identity field. For example, if the highest ID in the Foos table is 99, then we try to insert a new Foo record but roll back, then ID 100 gets 'used up' and the next Foo row will be numbered 101. Is there any way this behaviour can be changed so that identity fields are guaranteed to be sequential? 回答1: What you are after will never work with identity columns. They are designed to