hi to all,
thank u for ur kind reply. i have used "desc tablename". but it given the error "ORA-00900 Invalid SQL statement". my code is


oledbcon = new OleDbConnection("Provider=OraOLEDB.Oracle;User Id=" + struname + ";Password=" + strpwd + "");
oledbcon.Open();
oledbcmd = new OleDbCommand("desc " + tablename, oledbcon);
oledbreader = oledbcmd.ExecuteReader();
while (oledbreader.Read())
{
cmbcolumns.Items.Add(oledbreader[0].ToString());
}
oledbreader.Close();
oledbcon.Close();


plz help me to solve the problem.

With thanks and regards
MMary