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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
public OracleDataReader ExecuteReader ()
public function ExecuteReader () : OracleDataReader
Not applicable.

Return Value

An OracleDataReader object.

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

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1

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