Question

我有這樣的SQLite查詢：

Cursor orgiCursor = orgiDb.rawQuery("select task,taskDate from meeting where exists 
(select `meeting.taskId from Task, meeting where meeting.taskId = Task.taskId and task.name='"+profName+"') 
UNION SELECT subject,date from taskDeadline where exists (select taskDeadline.taskId from taskDeadline,Task where taskDeadline.taskId=Task.taskId and Task.name='"+profName+"') union select 
specificOccassion,setDate from AnnualTask where exists (select taskId from Task,AnnualTask where Task.taskId = AnnualTask.taskId and Task.name = '"+profName+"' and AnnualTask.setDate<>'--')", null); 

這是相當長的真的，但它完美的作品在SQLite的經理。我的問題是我在檢索數據時遇到錯誤。這是我的代碼片段：

try { 
    if (orgiCursor != null) { 
     if (orgiCursor.moveToFirst()) { 
      do { 
       String annualTask = orgiCursor.getString(orgiCursor.getColumnIndex("specificOccassion")); 
       String annualDate = orgiCursor.getString(orgiCursor.getColumnIndex("setDate")); 
       String meetingTask = orgiCursor.getString(orgiCursor.getColumnIndex("task")); 
       String meetingDate = orgiCursor.getString(orgiCursor.getColumnIndex("taskDate")); 
       String deadlineTask = orgiCursor.getString(orgiCursor.getColumnIndex("subject")); 
       String deadlineDate = orgiCursor.getString(orgiCursor.getColumnIndex("date")); 

       SearchResults sr2=new SearchResults(); 
       sr2.setName(meetingTask); 
       sr2.settDate(meetingDate); 
       results.add(sr2); 

       SearchResults sr3 = new SearchResults(); 
       sr3.setName(deadlineTask); 
       sr3.settDate(deadlineDate); 
       results.add(sr3); 

       SearchResults sr1 = new SearchResults(); 
       sr1.setName(annualTask); 
       sr1.settDate(annualDate); 
       Log.i("Home","added"+annualTask + " & " +annualDate); 
       results.add(sr1); 
      } while (orgiCursor.moveToNext()); 
     } 
    } 
} catch (SQLiteException se) { 
    displayError1(se.toString()); 
    Log.e(getClass().getSimpleName(), se.toString()); 
} finally { 
    if (orgiDb != null) { 
     orgiDb.close(); 
     Log.e(getClass().getSimpleName(),"orgiDB closed()"); 
    } 
} 


    return results; 

它返回此錯誤。 :(請幫我

02-12 19:28:00.809: INFO/Database(14515): sqlite returned: error code = 1, msg = ambiguous column name: taskId 
02-12 19:28:00.849: ERROR/AndroidRuntime(14515): Caused by: android.database.sqlite.SQLiteException: ambiguous column name: taskId: , while compiling: select task,taskDate from meeting where exists (select meeting.taskId from Task, meeting where meeting.taskId = Task.taskId and task.name='Maria Ozawa')UNION SELECT subject,date from taskDeadline where exists (select taskDeadline.taskId from taskDeadline,Task where taskDeadline.taskId=Task.taskId and Task.name='Maria Ozawa') union select specificOccassion,setDate from AnnualTask where exists (select taskId from Task,AnnualTask where Task.taskId = AnnualTask.taskId and Task.name = 'Maria Ozawa' and AnnualTask.setDate<>'--') 

02-12 19:28:01.059: ERROR/Database(14515): close() was never explicitly called on database '/data/data/orgy.organizer.home/databases/orgi' 
02-12 19:28:01.059: ERROR/Database(14515): android.database.sqlite.DatabaseObjectNotClosedException: Application did not close the cursor or database object that was opened here 

任何幫助將不勝感激... :( 所以我的問題是：
1.哪些部分的代碼我正好需要關閉連接/光標？
2.爲什麼Eclipse的給我這個錯誤？我試圖在SQLite的管理運行相同的語句，它給了我完美無瑕的結果。

Answer 1

似乎錯誤是在查詢，事實上，它不會關閉遊標因爲他不正確地計算查詢我認爲

嘗試使用別名，當你使用屬性taskId，你使用它很多次，也許它迷惑編譯器

希望這有助於！