SqlTransaction.Rollback Yöntem

public:
 override void Rollback();

public:
 virtual void Rollback();

public override void Rollback ();

public void Rollback ();

override this.Rollback : unit -> unit

abstract member Rollback : unit -> unit
override this.Rollback : unit -> unit

Public Overrides Sub Rollback ()

Public Sub Rollback ()

Uygulamalar

Özel durumlar

Örnekler

Aşağıdaki örnek bir SqlConnection ve SqlTransactionoluşturur. Ayrıca , Commitve Rollback yöntemlerinin BeginTransactionnasıl kullanılacağını da gösterir. İşlem herhangi bir hatada geri alınır. Try / Catch hata işleme, işlemi işlemeye veya geri alma işlemine çalışırken oluşan hataları işlemek için kullanılır.

private static void ExecuteSqlTransaction(string connectionString)
{
    using (SqlConnection connection = new SqlConnection(connectionString))
    {
        connection.Open();

        SqlCommand command = connection.CreateCommand();
        SqlTransaction transaction;

        // Start a local transaction.
        transaction = connection.BeginTransaction();

        // Must assign both transaction object and connection
        // to Command object for a pending local transaction
        command.Connection = connection;
        command.Transaction = transaction;

        try
        {
            command.CommandText =
                "Insert into Region (RegionID, RegionDescription) VALUES (100, 'Description')";
            command.ExecuteNonQuery();
            command.CommandText =
                "Insert into Region (RegionID, RegionDescription) VALUES (101, 'Description')";
            command.ExecuteNonQuery();

            // Attempt to commit the transaction.
            transaction.Commit();
            Console.WriteLine("Both records are written to database.");
        }
        catch (Exception ex)
        {
            Console.WriteLine("Commit Exception Type: {0}", ex.GetType());
            Console.WriteLine("  Message: {0}", ex.Message);

            // Attempt to roll back the transaction.
            try
            {
                transaction.Rollback();
            }
            catch (Exception ex2)
            {
                // This catch block will handle any errors that may have occurred
                // on the server that would cause the rollback to fail, such as
                // a closed connection.
                Console.WriteLine("Rollback Exception Type: {0}", ex2.GetType());
                Console.WriteLine("  Message: {0}", ex2.Message);
            }
        }
    }
}

Private Sub ExecuteSqlTransaction(ByVal connectionString As String)
    Using connection As New SqlConnection(connectionString)
        connection.Open()

        Dim command As SqlCommand = connection.CreateCommand()
        Dim transaction As SqlTransaction

        ' Start a local transaction
        transaction = connection.BeginTransaction()

        ' Must assign both transaction object and connection
        ' to Command object for a pending local transaction.
        command.Connection = connection
        command.Transaction = transaction

        Try
            command.CommandText = _
              "Insert into Region (RegionID, RegionDescription) VALUES (100, 'Description')"
            command.ExecuteNonQuery()
            command.CommandText = _
              "Insert into Region (RegionID, RegionDescription) VALUES (101, 'Description')"

            command.ExecuteNonQuery()

            ' Attempt to commit the transaction.
            transaction.Commit()
            Console.WriteLine("Both records are written to database.")

        Catch ex As Exception
            Console.WriteLine("Commit Exception Type: {0}", ex.GetType())
            Console.WriteLine("  Message: {0}", ex.Message)

            ' Attempt to roll back the transaction.
            Try
                transaction.Rollback()

            Catch ex2 As Exception
                ' This catch block will handle any errors that may have occurred
                ' on the server that would cause the rollback to fail, such as
                ' a closed connection.
                Console.WriteLine("Rollback Exception Type: {0}", ex2.GetType())
                Console.WriteLine("  Message: {0}", ex2.Message)
            End Try
        End Try
    End Using
End Sub

Açıklamalar

Rollback yöntemi Transact-SQL ROLLBACK TRANSACTION deyimiyle eşdeğerdir. Daha fazla bilgi için bkz. ROLLBACK TRANSACTION (Transact-SQL) .

İşlem yalnızca bekleme durumundan geri döndürülebilir (çağrıldıktan sonra BeginTransaction ancak çağrılmadan önce Commit ). İşlem, daha önce Commit atılması veya Rollback çağrılması durumunda geri alınır.

SQL Server işlemleri hakkında daha fazla bilgi için bkz. İşlemler (Transact-SQL).

Ayrıca bkz.

• Yerel İşlemler
• ADO.NET’e Genel Bakış

public:
 void Rollback(System::String ^ transactionName);

public void Rollback (string transactionName);

override this.Rollback : string -> unit

member this.Rollback : string -> unit

Public Sub Rollback (transactionName As String)

Parametreler

Özel durumlar

Örnekler

Aşağıdaki örnek bir SqlConnection ve SqlTransactionoluşturur. Ayrıca , Commitve Rollback yöntemlerinin BeginTransactionnasıl kullanılacağını da gösterir. İşlem herhangi bir hatada geri alınır. Try / Catch hata işleme, işlemi işlemeye veya geri alma işlemine çalışırken oluşan hataları işlemek için kullanılır.

private static void ExecuteSqlTransaction(string connectionString)
{
    using (SqlConnection connection = new SqlConnection(connectionString))
    {
        connection.Open();

        SqlCommand command = connection.CreateCommand();
        SqlTransaction transaction;

        // Start a local transaction.
        transaction = connection.BeginTransaction("SampleTransaction");

        // Must assign both transaction object and connection
        // to Command object for a pending local transaction
        command.Connection = connection;
        command.Transaction = transaction;

        try
        {
            command.CommandText =
                "Insert into Region (RegionID, RegionDescription) VALUES (100, 'Description')";
            command.ExecuteNonQuery();
            command.CommandText =
                "Insert into Region (RegionID, RegionDescription) VALUES (101, 'Description')";
            command.ExecuteNonQuery();

            // Attempt to commit the transaction.
            transaction.Commit();
            Console.WriteLine("Both records are written to database.");
        }
        catch (Exception ex)
        {
            Console.WriteLine("Commit Exception Type: {0}", ex.GetType());
            Console.WriteLine("  Message: {0}", ex.Message);

            // Attempt to roll back the transaction.
            try
            {
                transaction.Rollback("SampleTransaction");
            }
            catch (Exception ex2)
            {
                // This catch block will handle any errors that may have occurred
                // on the server that would cause the rollback to fail, such as
                // a closed connection.
                Console.WriteLine("Rollback Exception Type: {0}", ex2.GetType());
                Console.WriteLine("  Message: {0}", ex2.Message);
            }
        }
    }
}

Private Sub ExecuteSqlTransaction(ByVal connectionString As String)
    Using connection As New SqlConnection(connectionString)
        connection.Open()

        Dim command As SqlCommand = connection.CreateCommand()
        Dim transaction As SqlTransaction

        ' Start a local transaction
        transaction = connection.BeginTransaction("SampleTransaction")

        ' Must assign both transaction object and connection
        ' to Command object for a pending local transaction.
        command.Connection = connection
        command.Transaction = transaction

        Try
            command.CommandText = _
              "Insert into Region (RegionID, RegionDescription) VALUES (100, 'Description')"
            command.ExecuteNonQuery()
            command.CommandText = _
              "Insert into Region (RegionID, RegionDescription) VALUES (101, 'Description')"

            command.ExecuteNonQuery()

            ' Attempt to commit the transaction.
            transaction.Commit()
            Console.WriteLine("Both records are written to database.")

        Catch ex As Exception
            Console.WriteLine("Exception Type: {0}", ex.GetType())
            Console.WriteLine("  Message: {0}", ex.Message)

            ' Attempt to roll back the transaction.
            Try
                transaction.Rollback("SampleTransaction")

            Catch ex2 As Exception
                ' This catch block will handle any errors that may have occurred
                ' on the server that would cause the rollback to fail, such as
                ' a closed connection.
                Console.WriteLine("Rollback Exception Type: {0}", ex2.GetType())
                Console.WriteLine("  Message: {0}", ex2.Message)
            End Try
        End Try
    End Using
End Sub

Açıklamalar

Rollback yöntemi Transact-SQL ROLLBACK TRANSACTION deyimiyle eşdeğerdir. Daha fazla bilgi için bkz. İşlemler (Transact-SQL).

İşlem yalnızca bekleme durumundan geri döndürülebilir (çağrıldıktan sonra BeginTransaction ancak çağrılmadan önce Commit ). İşlem, daha önce Commit atılırsa veya Rollback çağrılırsa geri alınır.

SQL Server işlemleri hakkında daha fazla bilgi için bkz. İşlemler (Transact-SQL).

Ayrıca bkz.

• İşlem Gerçekleştirme
• ADO.NET’e Genel Bakış