OracleException Class

Definition

Namespace:

System.Data.OracleClient

Assembly:

System.Data.OracleClient.dll

The exception that is generated when a warning or error is returned by an Oracle database or the .NET Framework Data Provider for Oracle. This class cannot be inherited.

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

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

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

Public NotInheritable Class OracleException
Inherits DbException

Inheritance

Object

Exception

SystemException

ExternalException

DbException

OracleException

Attributes

SerializableAttribute

Examples

The following example generates an OracleException due to a missing database, and then displays the exception.

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

Remarks

This class is created whenever the OracleDataAdapter encounters a situation that it cannot handle.

If the severity of the error is too great, the server may close the OracleConnection. However, the user can reopen the connection and continue.

Properties

BatchCommand	If this DbException was thrown when executing a DbBatch, references the specific DbBatchCommand which triggered the exception. (Inherited from DbException)
Code	Gets the code portion of the error as an integer.
Data	Gets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception)
DbBatchCommand	When overridden in a derived class, if this DbException was thrown when executing a DbBatch, references the specific DbBatchCommand which triggered the exception. (Inherited from DbException)
ErrorCode	Gets the HRESULT of the error. (Inherited from ExternalException)
HelpLink	Gets or sets a link to the help file associated with this exception. (Inherited from Exception)
HResult	Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception)
InnerException	Gets the Exception instance that caused the current exception. (Inherited from Exception)
IsTransient	Indicates whether the error represented by this DbException could be a transient error, i.e. if retrying the triggering operation may succeed without any other change. (Inherited from DbException)
Message	Gets a message that describes the current exception. (Inherited from Exception)
Source	Gets or sets the name of the application or the object that causes the error. (Inherited from Exception)
SqlState	For database providers which support it, contains a standard SQL 5-character return code indicating the success or failure of the database operation. The first 2 characters represent the class of the return code (e.g. error, success), while the last 3 characters represent the subclass, allowing detection of error scenarios in a database-portable way. For database providers which don't support it, or for inapplicable error scenarios, contains null. (Inherited from DbException)
StackTrace	Gets a string representation of the immediate frames on the call stack. (Inherited from Exception)
TargetSite	Gets the method that throws the current exception. (Inherited from Exception)

Methods

Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetBaseException()	When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetObjectData(SerializationInfo, StreamingContext)	Sets the SerializationInfo with information about the exception.
GetType()	Gets the runtime type of the current instance. (Inherited from Exception)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that contains the HRESULT of the error. (Inherited from ExternalException)

Events

SerializeObjectState

Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception. (Inherited from Exception)