'Declaration Public Overloads Shadows Function BeginTransaction() As MySqlTransaction
public new MySqlTransaction BeginTransaction()
Return Value
An object representing the new transaction.
'Declaration Public Overloads Shadows Function BeginTransaction() As MySqlTransaction
public new MySqlTransaction BeginTransaction()
To ensure that the dotConnect for MySQL transaction management model performs correctly, avoid using other transaction management models, such as those provided by MySQL.
In MySQL, only InnoDB and BDB (BerkeleyDB) table formats support transactions. Other standard storage engines ignore transactions and can not rollback data modifications.
public void RunMySqlTransaction(string myConnString) { MySqlConnection myConnection = new MySqlConnection(myConnString); myConnection.Open(); MySqlCommand myCommand = new MySqlCommand(); myCommand.Connection = myConnection; MySqlTransaction myTrans; // Start a local transaction myTrans = myConnection.BeginTransaction(); // Assign transaction object for a pending local transaction myCommand.Transaction = myTrans; try { myCommand.CommandText = "INSERT INTO Test.Dept(DeptNo, DName) Values(50, 'DEVELOPMENT')"; myCommand.ExecuteNonQuery(); myCommand.CommandText = "INSERT INTO Test.Dept(DeptNo, DName) Values(60, 'PRODUCTION')"; myCommand.ExecuteNonQuery(); myTrans.Commit(); Console.WriteLine("Both records are written to database."); } catch(Exception e) { myTrans.Rollback(); Console.WriteLine(e.ToString()); Console.WriteLine("Neither record was written to database."); } finally { myConnection.Close(); } }
Public Sub RunMySqlTransaction(myConnString As String) Dim myConnection As New MySqlConnection(myConnString) myConnection.Open() Dim myCommand As New MySqlCommand() myCommand.Connection = myConnection Dim myTrans As MySqlTransaction ' Start a local transaction myTrans = myConnection.BeginTransaction() ' Assign transaction object for a pending local transaction myCommand.Transaction = myTrans Try myCommand.CommandText = "INSERT INTO Test.Dept(DeptNo, DName) Values(50, 'DEVELOPMENT')" myCommand.ExecuteNonQuery() myCommand.CommandText = "INSERT INTO Test.Dept(DeptNo, DName) Values(60, 'PRODUCTION')" myCommand.ExecuteNonQuery() myTrans.Commit() Console.WriteLine("Both records are written to database.") Catch e As Exception myTrans.Rollback() Console.WriteLine(e.ToString()) Console.WriteLine("Neither record was written to database.") Finally myConnection.Close() End Try End Sub
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2