在Android中查詢SqlLite數據庫使用子句

錯誤是它沒有找到類型字符串。

我的查詢出了什麼問題？

String selectQuery = "SELECT * FROM " + TABLE_CONTACTS + " WHERE " + KEY_TYPE + " ='" + type + "'";

我的日誌貓我的日誌貓02-14 16：33：17.925：E/AndroidRuntime（25839）：了java.lang.RuntimeException：無法啓動活動ComponentInfo android.database.sqlite.SQLiteException：無這樣的列：類型：，編譯時：SELECT * FROM Mycontacts其中type = '白名單'

完整查詢代碼

public List<Contacts> getAllphContacts(String type) { 
     List<Contacts> contactList = new ArrayList<Contacts>(); 
     // Select All Query 

     //String selectQuery = "SELECT * FROM " + TABLE_CONTACTS +KEY_TYPE + "=?";    //*tried this also 
     String selectQuery = "SELECT * FROM " + TABLE_CONTACTS + " WHERE " + KEY_TYPE + " ="+ type; //***this also not working 
     SQLiteDatabase db = this.getWritableDatabase(); 
     Cursor cursor = db.rawQuery(selectQuery, null); 

     // looping through all rows and adding to list 
     if (cursor.moveToFirst()) { 
      do { 
       Contacts contact = new Contacts(); 
       contact.setphid(Integer.parseInt(cursor.getString(0)));    
       contact.setphname(cursor.getString(1)); 
       contact.setphnumber(cursor.getString(2)); 
       contact.settype(cursor.getString(3));//********For whiteList*********// 

       // Adding contact to list 
       contactList.add(contact); 
      } while (cursor.moveToNext()); 
     } 
     cursor.close(); 
     db.close(); 
     // return contact list 
     return contactList; 
    }

來源

2014-02-14 Mayank Nema

發佈一些更多的代碼，請！ –

選中此鏈接。 http://stackoverflow.com/questions/15594716/android-sqlite-query-where-and-where –

-1

String QUERY = "SELECT * FROM Cart Where id=" + id"; 
cursor = data.selectQuery(QUERY); 
int count = cursor.getCount(); 

if (count <= 0) { 
/// insert 
}else{ 

/// update 
}

來源

2014-02-14 11:27:54

這不會幫助問題'沒有這樣的列：type'。 –

在Android中查詢SqlLite數據庫使用子句

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