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OracleConnection.BeginTransaction 方法

定義

開始進行資料庫上的交易。

多載

BeginTransaction()

開始進行資料庫上的交易。

BeginTransaction(IsolationLevel)

使用指定的 IsolationLevel 值,開始進行資料庫上的交易。

BeginTransaction()

開始進行資料庫上的交易。

public:
 System::Data::OracleClient::OracleTransaction ^ BeginTransaction();
public System.Data.OracleClient.OracleTransaction BeginTransaction ();
member this.BeginTransaction : unit -> System.Data.OracleClient.OracleTransaction
override this.BeginTransaction : unit -> System.Data.OracleClient.OracleTransaction
Public Function BeginTransaction () As OracleTransaction

傳回

代表新異動的物件。

例外狀況

不支援平行交易。

範例

下列範例會 OracleConnection 建立 和 OracleTransaction。 它也會示範如何使用 BeginTransactionCommitRollback 方法。

public void RunOracleTransaction(string connectionString)
{
    using (OracleConnection connection = new OracleConnection(connectionString))
    {
        connection.Open();

        OracleCommand command = connection.CreateCommand();
        OracleTransaction transaction;

        // Start a local transaction
        transaction = connection.BeginTransaction(IsolationLevel.ReadCommitted);
        // Assign transaction object for a pending local transaction
        command.Transaction = transaction;

        try
        {
            command.CommandText =
                "INSERT INTO Dept (DeptNo, Dname, Loc) values (50, 'TECHNOLOGY', 'DENVER')";
            command.ExecuteNonQuery();
            command.CommandText =
                "INSERT INTO Dept (DeptNo, Dname, Loc) values (60, 'ENGINEERING', 'KANSAS CITY')";
            command.ExecuteNonQuery();
            transaction.Commit();
            Console.WriteLine("Both records are written to database.");
        }
        catch (Exception e)
        {
            transaction.Rollback();
            Console.WriteLine(e.ToString());
            Console.WriteLine("Neither record was written to database.");
        }
    }
}
Public Sub RunOracleTransaction(ByVal connectionString As String)
    Using connection As New OracleConnection(connectionString)
        connection.Open()

        Dim command As OracleCommand = connection.CreateCommand()
        Dim transaction As OracleTransaction

        ' Start a local transaction
        transaction = connection.BeginTransaction(IsolationLevel.ReadCommitted)
        ' Assign transaction object for a pending local transaction
        command.Transaction = transaction

        Try
            command.CommandText = _
                "INSERT INTO Dept (DeptNo, Dname, Loc) values (50, 'TECHNOLOGY', 'DENVER')"
            command.ExecuteNonQuery()
            command.CommandText = _
                "INSERT INTO Dept (DeptNo, Dname, Loc) values (60, 'ENGINEERING', 'KANSAS CITY')"
            command.ExecuteNonQuery()
            transaction.Commit()
            Console.WriteLine("Both records are written to database.")
        Catch e As Exception
            transaction.Rollback()
            Console.WriteLine(e.ToString())
            Console.WriteLine("Neither record was written to database.")
        End Try
    End Using
End Sub

備註

若要認可或回復交易,您必須明確使用 CommitRollback 方法。

若要確保適用於 Oracle 事務管理模型的數據提供者 .NET Framework 正確執行,請避免使用其他交易管理模型,例如資料庫所提供的模型。

注意

如果您未指定隔離等級,則會使用預設隔離等級。 若要使用 BeginTransaction 方法指定隔離等級,請使用 BeginTransaction 多載。

另請參閱

適用於

BeginTransaction(IsolationLevel)

使用指定的 IsolationLevel 值,開始進行資料庫上的交易。

public:
 System::Data::OracleClient::OracleTransaction ^ BeginTransaction(System::Data::IsolationLevel il);
public System.Data.OracleClient.OracleTransaction BeginTransaction (System.Data.IsolationLevel il);
member this.BeginTransaction : System.Data.IsolationLevel -> System.Data.OracleClient.OracleTransaction
override this.BeginTransaction : System.Data.IsolationLevel -> System.Data.OracleClient.OracleTransaction
Public Function BeginTransaction (il As IsolationLevel) As OracleTransaction

參數

il
IsolationLevel

這個連接的交易隔離等級 (Isolation Level)。

傳回

代表新異動的物件。

例外狀況

不支援平行交易。

範例

下列範例會 OracleConnection 建立 和 OracleTransaction。 它也會示範如何使用 BeginTransactionCommitRollback 方法。

public void RunOracleTransaction(string connectionString)
{
    using (OracleConnection connection = new OracleConnection(connectionString))
    {
        connection.Open();

        OracleCommand command = connection.CreateCommand();
        OracleTransaction transaction;

        // Start a local transaction
        transaction = connection.BeginTransaction(IsolationLevel.ReadCommitted);
        // Assign transaction object for a pending local transaction
        command.Transaction = transaction;

        try
        {
            command.CommandText =
                "INSERT INTO Dept (DeptNo, Dname, Loc) values (50, 'TECHNOLOGY', 'DENVER')";
            command.ExecuteNonQuery();
            command.CommandText =
                "INSERT INTO Dept (DeptNo, Dname, Loc) values (60, 'ENGINEERING', 'KANSAS CITY')";
            command.ExecuteNonQuery();
            transaction.Commit();
            Console.WriteLine("Both records are written to database.");
        }
        catch (Exception e)
        {
            transaction.Rollback();
            Console.WriteLine(e.ToString());
            Console.WriteLine("Neither record was written to database.");
        }
    }
}
Public Sub RunOracleTransaction(ByVal connectionString As String)
    Using connection As New OracleConnection(connectionString)
        connection.Open()

        Dim command As OracleCommand = connection.CreateCommand()
        Dim transaction As OracleTransaction

        ' Start a local transaction
        transaction = connection.BeginTransaction(IsolationLevel.ReadCommitted)
        ' Assign transaction object for a pending local transaction
        command.Transaction = transaction

        Try
            command.CommandText = _
                "INSERT INTO Dept (DeptNo, Dname, Loc) values (50, 'TECHNOLOGY', 'DENVER')"
            command.ExecuteNonQuery()
            command.CommandText = _
                "INSERT INTO Dept (DeptNo, Dname, Loc) values (60, 'ENGINEERING', 'KANSAS CITY')"
            command.ExecuteNonQuery()
            transaction.Commit()
            Console.WriteLine("Both records are written to database.")
        Catch e As Exception
            transaction.Rollback()
            Console.WriteLine(e.ToString())
            Console.WriteLine("Neither record was written to database.")
        End Try
    End Using
End Sub

備註

若要認可或回復交易,您必須明確使用 CommitRollback 方法。

若要確保適用於 Oracle 事務管理模型的數據提供者 .NET Framework 正確執行,請避免使用其他交易管理模型,例如資料庫所提供的模型。

另請參閱

適用於