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OracleCommand.ExecuteReader Method

Sends the CommandText to the Connection and builds an OracleDataReader.

Namespace:  System.Data.OracleClient
Assembly:  System.Data.OracleClient (in System.Data.OracleClient.dll)

'Declaration
Public Function ExecuteReader As OracleDataReader
'Usage
Dim instance As OracleCommand 
Dim returnValue As OracleDataReader 

returnValue = instance.ExecuteReader()

When the CommandType property is set to StoredProcedure, the CommandText property should be set to the name of the stored procedure. The command then executes this stored procedure when you call ExecuteReader.

More than one OracleDataReader can be open at any given time.

The following example creates an OracleCommand, and then executes it by passing a string that is an SQL SELECT statement, and a string to use to connect to the data source.

Public Sub CreateMyOracleDataReader(ByVal queryString As String, _
ByVal connectionString As String)
    Using connection As New OracleConnection(connectionString)
        Dim command As New OracleCommand(queryString, connection)
        connection.Open()
        Dim reader As OracleDataReader = command.ExecuteReader()
        Try 
            While reader.Read()
                Console.WriteLine(reader.GetValue(0))
            End While 
        Finally
            reader.Close()
        End Try 
    End Using 
End Sub

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1
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