Missing operand after operator

[非非非非]

报错信息：

System.Data.SyntaxErrorException: Syntax error: .Missing operand after ''2021-04-01'' operator
   at Aero.Airp.Client.frmAcarsParseView.barButtonItem2_ItemClick(Object sender, ItemClickEventArgs e)

代码：

  DataRow[] Rows = ds.Tables[0].Select(string.Format("FLIGHT_DATE = DATE'2021-04-01' and FLIGHT_CODE='CF9019' and DEPARTURE_AIRPORT='ZGGG' and ARRIVAL_AIRPORT='ZBAD' AND AIRCRAFT_CODE='B2135'"));
                          

 

好像就是这个select报错了，这是怎么回事呢？