爲什麼這個工程SQLite的指定欄目查詢
database.rawQuery("select * from Assignments left join Tasks on Tasks._id = Assignments.TaskID left join Flights on Flights.ARR_FLT_ID = Tasks.ArrivalFlightID where Assignments.TaskAccepted='Y' and Tasks.RecordChangedByUI = 'N' and Assignments.AssignedTo=? order by Assignments.AssignedOn desc", new String[]{ String.valueOf(empID) });
這並不..
database.rawQuery("select Tasks.Aircraft AS Aircraft, Tasks.Discrepancy AS Discrepancy, Flights.ARR_FLT AS ARR_FLT from Assignments left join Tasks on Tasks._id = Assignments.TaskID left join Flights on Flights.ARR_FLT_ID = Tasks.ArrivalFlightID where Assignments.TaskAccepted='Y' and Tasks.RecordChangedByUI = 'N' and Assignments.AssignedTo=? order by Assignments.AssignedOn desc", new String[]{ String.valueOf(empID) });
什麼是logcat的輸出的logcat /錯誤? –
http://stackoverflow.com/questions/7519758/sqlite-select-query-with-column-names看到我的評論大聲笑 – Selvin
@Selvin ....現在我明白了你說什麼當時:)在這裏我加入每張桌子有3張桌子有自己的_id。我應該得到哪個_id? – user533844