From: liupengwyy@gmail.com   
      
   On Saturday, April 27, 2013 3:11:56 PM UTC+8, Peng Liu wrote:   
   > My C++ code accesses SQL Server by ODBC driver 2.x, and calls   
   >    
   > SQLSetConnectAttr( pMSSQLHandles->hDbc, SQL_ATTR_AUTOCOMMIT, S   
   L_AUTOCOMMIT_OFF, 0 );   
   >    
   > to set the  transaction to implicit transaction. I also call SQLEndTran() to   
   commit the transaction.   
   >    
   >    
   >    
   > After my application starts， in SQL Server 2008 Managment Studio, run   
   "DBCC OPENTRAN", no active open transaction is reported. And "select   
   @@TRANCOUNT" return 0.    
   >    
   >    
   >    
   > However, if run   
   >    
   > select * from sys.dm_tran_session_transactions   
   >    
   > we can see there is one record， and we can also find the transaction   
   corresponding to this record in sys.dm_tran_active_transactions.   
   >    
   >    
   >    
   > Below SQL script will return 1 records.   
   >    
   > select s.dbid, s.spid,s.loginame, s.status,d.name,s.last_batch   
   datediff(minute,s.last_batch,GETDATE()) as IdleTimeInMin,    
   >    
   >     s.open_tran,t.text   
   >    
   > from sys.sysprocesses s   
   >    
   > join sys.databases d on d.database_id = s.dbid   
   >    
   > cross apply sys.dm_exec_sql_text (s.sql_handle) t   
   >    
   > where d.name = 'XXX' and s.loginame <> 'sa'   
   >    
   > order by s.last_batch   
   >    
   >    
   >    
   > I am curious that which method is the exact one to get all the not-committed   
   transactions.   
   >    
   > What is the meaning of the records in dm_tran_active_transactions,   
   dm_tran_session_transactions and dm_tran_database_transactions?   
   >    
   > What is difference between Open transaction and active transaction?   
   >    
   >    
   >    
   > Thanks in advance.   
      
   Besides, after I start my application, on the SQL Server Management Studio,   
   right click the database node, select Reports->Standard Reports->All   
   transactions, the report said that there is one active transaction.   
      
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