GetDataTypeName(Int32) Method
Gets the name of the source data type.
public override string GetDataTypeName(
int
)
'Declaration
Public Overloads Overrides Function GetDataTypeName( _
ByVal As Integer _
) As String
Parameters
- i
Return Value
The name of the back-end data type.
This sample shows how to retrieve names and types of all columns in a table.
public void GetFields(OracleConnection myConnection)
{
OracleCommand cmd = new OracleCommand("SELECT * FROM Test.Dept");
cmd.Connection = myConnection;
myConnection.Open();
try
{
OracleDataReader reader = cmd.ExecuteReader();
reader.Read();
for (int i=0;i < reader.FieldCount;i++)
{
string fieldType = reader.GetDataTypeName(i);
string fieldName = reader.GetName(i);
string fieldType2 = reader.GetFieldType(i).FullName;
Console.WriteLine(fieldName+"\t"+ fieldType+"\t"+ fieldType2);
}
reader.Close();
}
finally
{
myConnection.Close();
}
}
Public Sub GetFields(ByVal myConnection As OracleConnection)
Dim cmd As OracleCommand = New OracleCommand("SELECT * FROM Test.Dept")
cmd.Connection = myConnection
myConnection.Open()
Try
Dim reader As OracleDataReader = cmd.ExecuteReader()
reader.Read()
Dim i As Integer
For i = 0 To reader.FieldCount - 1
Dim fieldType As String = reader.GetDataTypeName(i)
Dim fieldName As String = reader.GetName(i)
Dim fieldType2 As String = reader.GetFieldType(i).FullName
Console.WriteLine(fieldName & Chr(9) & fieldType & Chr(9) & fieldType2)
Next i
reader.Close()
Finally
myConnection.Close()
End Try
End Sub
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2