OleDbConnection conn = newOleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;DataSource=C:\\Percorso prova\\prova.mdb;PersistSecurity Info=False;");

OleDbCommand cmd = new OleDbCommand("tabellaEsempio", conn);
cmd.CommandType = CommandType.TableDirect;
conn.Open();
OleDbDataReader reader = cmd.ExecuteReader(CommandBehavior.SchemaOnly);
DataTable schemaTable = reader.GetSchemaTable();
reader.Close();
conn.Close();