dotConnect for DB2 Documentation
Devart.Data.DB2 Namespace / DB2Transaction Class
Members Example

In This Topic
    DB2Transaction Class
    In This Topic
    Represents a SQL transaction to be made in the DB2 database.
    Syntax
    'Declaration
     
    Public Class DB2Transaction 
       Inherits Devart.Common.DbTransactionBase
       Implements System.Data.IDbTransactionSystem.IDisposable 
    Remarks

    The application creates a DB2Transaction object by calling DB2Connection.BeginTransaction on the DB2Connection object. All subsequent operations associated with the transaction (for example, committing or aborting the transaction), are performed on the DB2Transaction object.

    The correlation between DB2Connection and DB2Transaction is always 1:1.

    Example
    The following example creates a DB2Connection and a DB2Transaction. It also demonstrates how to use the DB2Connection.BeginTransaction, Commit, and Rollback methods.
    public static void RunDB2Transaction(string myConnString) {
            using (DB2Connection db2Connection = new DB2Connection(myConnString)) {
                    db2Connection.Open();
                    // Start a local transaction
                    DB2Transaction myTrans = db2Connection.BeginTransaction(System.Data.IsolationLevel.ReadCommitted);
                    DB2Command db2Command = db2Connection.CreateCommand();
                    try {
                            db2Command.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(52, 'DEVELOPMENT')";
                            db2Command.ExecuteNonQuery();
                            db2Command.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(62, 'PRODUCTION')";
                            db2Command.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 {
                            db2Command.Dispose();
                            myTrans.Dispose();
                    }
        }
    }
    Public Shared Sub RunDB2Transaction(myConnString As String)
            Using db2Connection As New DB2Connection(myConnString)
                    db2Connection.Open()
                    ' Start a local transaction
                    Dim myTrans As DB2Transaction = db2Connection.BeginTransaction(System.Data.IsolationLevel.ReadCommitted)
                    Dim db2Command As DB2Command = db2Connection.CreateCommand()
                    Try
                            db2Command.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(52, 'DEVELOPMENT')"
                            db2Command.ExecuteNonQuery()
                            db2Command.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(62, 'PRODUCTION')"
                            db2Command.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
                            db2Command.Dispose()
                            myTrans.Dispose()
                    End Try
        End Using
    End Sub
    Inheritance Hierarchy

    System.Object
       System.MarshalByRefObject
          System.Data.Common.DbTransaction
             Devart.Common.DbTransactionBase
                Devart.Data.DB2.DB2Transaction

    Requirements

    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

    See Also