transactions

问题 How do i restrict other users to update or insert in a table after a certain transaction has begun ? I tried this : MySqlConnection con = new MySqlConnection("server=localhost;database=data;user=root;pwd=;"); con.Open(); MySqlTransaction trans = con.BeginTransaction(); try { string sql = "insert INTO transaction_ledger (trans_id,voucher_id,voucher_number,trans_date,ledger_code,company_code,trans_type, trans_amount,primary_ledger,narration,ledger_parent,trans_type_name,ledger_ref_code,r_trans

问题 I am new to Authorize.NET. Is reference transaction possible in authorize.net. For example: User A comes and enters the Credit Card details for first time, he does the payment. Now for the second time onwards when he does the payment the details of the previous transaction has to be used (i.e. he will not be entering the details again, the first payment details has to be used by default) and payment has to be done. Is there any such option available in Authorize.NET CIM service. I am using

问题 I'm pretty new in T-SQL and I'm in trouble with some huge scripts with transactions, cursors and storage procedures. So, my code is something like this (this code is just an example of the structure of my scripts, in fact I have multiples procedures inside OuterProc cursor and multiple operations inside InnerProc cursor): create proc InnerProc as begin declare @Id int begin tran declare mycursor cursor local static read_only forward_only for select Id from MyOtherTable open mycursor fetch

问题 I'd like some help understanding transactions and indempotence. Note: If your app receives an exception when submitting a transaction, it does not always mean that the transaction failed. You can receive Timeout, TransactionFailedError, or InternalError exceptions in cases where transactions have been committed and eventually will be applied successfully. Whenever possible, make your Datastore transactions idempotent so that if you repeat a transaction, the end result will be the same. I have

问题 I'm learning jedis, I couldn't exactly find out what is the problem in this code. Can anyone help me.The exception occurs at the statement tx.exec() public class JedisFactory { public static void main (String [] args){ JedisPool pool = new JedisPool(new JedisPoolConfig(), "127.0.0.1", 6379); Jedis jedis = pool.getResource(); Pipeline pipeline = jedis.pipelined(); for(int i=0; i < 1000 ; i++){ pipeline.hincrBy("Id", i+"", i); } pipeline.exec(); pool.returnResource(jedis); jedis = pool

问题 I'm using Pyramid and got a strange issue. I do an ajax request AR in view A. If the request is done, the user is redirected to view B. If the user goes back to A, the ajax request AR will fail, because pyramid does not find any view for the request. If someone needs code, I'll post it ;-) Thx & Greetings Tobias Edit: Snippet of my init .py # adding all routes config.add_static_view('static', 'static', cache_max_age=3600) config.add_route('main_page', '/') config.add_route('main_contact', '

问题 def cancel begin to_bank = @transfer.main_to_bank to_bank.with_lock do to_bank.locked_balance -= @transfer.amount to_bank.available_balance += @transfer.amount to_bank.save! @transfer.cancel @transfer.save! end rescue ActiveRecord::ActiveRecordError => e redirect_to admin_transfer_url(@transfer), alert: "Error while cancelling." return end redirect_to admin_transfer_url(@transfer), notice: 'Transfer was successfully cancelled.' end I would want to refactor the above code to the Transfer model

问题 Never seen this on our local servers, but after deploying the MVC4 application and the SQL Server database to Azure we sometimes get the following exception, how to tackle this problem? [ArgumentException: Value does not fall within the expected range.] System.Transactions.Oletx.IDtcProxyShimFactory.ConnectToProxy(String nodeName, Guid resourceManagerIdentifier, IntPtr managedIdentifier, Boolean& nodeNameMatches, UInt32& whereaboutsSize, CoTaskMemHandle& whereaboutsBuffer,

问题 I want to find a way to control EF's underlying db connection & transaction to make sure my application is using only one connection at a time during one transaction (I will need to support both Oracle and SQL Server). I found this good article which comes with a lot of recommendations, but brings up (like all the other articles I have read) the TransactionScope . Well, I would like to stay away of TransactionScope , if possible... Could I have a solution for this playing with only pure

问题 I get this error Message: ORA-00060: deadlock detected while waiting for resource even though I am not using any explicit table locking and my isolation level is set to READ COMMITTED . I use multiple threads over the Spring TransactionTemplate with default propagation. In my business logic the data is separated so that two transaction will never have the same set of data. Therefor I don't need SERIALIZABLE Why can Oracle detect a deadlock? Deadlocks are impossible in this constellation, or