using Oracle.DataAccess.Client;
...


OracleCommand cmd = new Oracle.DataAccess.Client.OracleCommand("pm.pkg_pmuser.clientdel", conn);
cmd.CommandType   = CommandType.StoredProcedure;
cmd.Parameters.Add("param_id",OracleDbType.Int32,id,ParameterDirection.Input);
			
			try
			{
				cmd.ExecuteNonQuery();
				return true;
			}
			
			catch(OracleException ex)
			{
				new dbError(null,ex.Message,1);
				return false;
			}
....