OracleException Classe

Definição

public ref class OracleException sealed : SystemException

public ref class OracleException sealed : System::Data::Common::DbException

[System.Serializable]
public sealed class OracleException : SystemException

[System.Serializable]
public sealed class OracleException : System.Data.Common.DbException

[<System.Serializable>]
type OracleException = class
    inherit SystemException

[<System.Serializable>]
type OracleException = class
    inherit DbException

Public NotInheritable Class OracleException
Inherits SystemException

Public NotInheritable Class OracleException
Inherits DbException

Herança

Object

Exception

SystemException

OracleException

Herança

Object

Exception

SystemException

ExternalException

DbException

OracleException

Atributos

SerializableAttribute

Exemplos

O exemplo seguinte gera um OracleException devido a uma base de dados em falta e depois mostra a exceção.

public void ShowOracleException()
{
   OracleConnection myConnection =
      new OracleConnection("Data Source=Oracle8i;Integrated Security=yes");

   try
   {
      myConnection.Open();
   }
   catch (OracleException e)
   {
     string errorMessage = "Code: " + e.Code + "\n" +
                           "Message: " + e.Message;

     System.Diagnostics.EventLog log = new System.Diagnostics.EventLog();
     log.Source = "My Application";
     log.WriteEntry(errorMessage);
     Console.WriteLine("An exception occurred. Please contact your system administrator.");
   }
}

Public Sub ShowOracleException() 

   Dim myConnection As OracleConnection = _
      New OracleConnection("Data Source=Oracle8i;Integrated Security=yes")

   Try 

      myConnection.Open()

   Catch e As OracleException

     Dim errorMessage As String = "Code: " & e.Code & vbCrLf & _
                                  "Message: " & e.Message

     Dim log As New System.Diagnostics.EventLog()
     log.Source = "My Application"
     log.WriteEntry(errorMessage)
     Console.WriteLine("An exception occurred. Please contact your system administrator.")

   End Try
End Sub

Observações

Esta classe é criada sempre que encontra OracleDataAdapter uma situação que não consegue lidar.

Se a gravidade do erro for demasiado elevada, o servidor pode fechar o OracleConnection. No entanto, o utilizador pode reabrir a ligação e continuar.