I would like to make use of nested transactions using SQLAlchemy (in postgres), but I want to write an independent function that doesn't care if the session already has a transaction or not -- it can start a nested transaction or outer transaction appropriately. Questio...
If the concurrency model is based on the snapshot idea where one reads only states/values that were valid at the point the transaction begins but no change that has changed later on, it is very important that on commit the full read set of the current transaction is also validated. Since ...
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I have been asked by many customers and partners, especially those migrating from Oracle, this question: how to create an autonomous transaction in SQL Server? It turns out to be a tricky thing to do since SQL Server doesn't have built-in autonomous transaction support like Orac...
return this.query('ROLLBACK', cb); }; Just do 'start transaction' query, then your sql, then 'commit' query and then release connection.Tagliatti closed this Jul 18, 2016 Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment Assignees...
threadB.Start(); } public void TransactionAThread() { String threadName = Thread.CurrentThread.Name; Console.WriteLine("In thread: {0}", threadName); using (SqlConnection con = new SqlConnection(connectionString)) { con.Open(); SqlCommand cmd = GetStoredProcedureCommandWithParame...
("@" + SyncSession.SyncRowCount, SqlDbType.Int).Direction = ParameterDirection.Output; customerDeletes.Parameters.Add("@CustomerId", SqlDbType.UniqueIdentifier); customerDeletes.Connection = serverConn; customerSyncAdapter.DeleteCommand = customerDeletes; //Add the SyncAdapter to the server ...
we check if any rows were updated at all. If not, a message will be printed. In reality, you can take other actions such as throwing an error message withRAISERROR, send an e-mail or kick of some stored procedure. The transaction is used in the example to roll back the update, so...
Microsoft SQL Server transaction logs tend to grow over time and can sometimes fill all the free space on the server drive. To avoid this, you should take regular transaction log backups or use transaction log truncate and shrink operations in SQL Server. ...
Alternatively, if you do not want automatic failover and you prefer to emphasize performance over availability, turn off transaction safety. For more information, seeHow to: Change Transaction Safety in a Database Mirroring Session (Transact-SQL). ...