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我嘗試查詢特定列中的所有數據,但會導致錯誤「確保在訪問數據之前正確初始化遊標」。這個代碼有什麼問題,謝謝。查詢特定列的sqlite
public List<String> getAllItemName(){
String[] column = new String[]{Pro_ID, Pro_Name, Pro_Price, Pro_Description, Pro_Date};
Cursor c= ourDatabase.rawQuery("SELECT " + Pro_Name + " From "+ TABLE_NAME , null);
List<String> lst = new ArrayList<String>();
if (c.moveToFirst()) {
do {
lst.add(c.getString(1));
String name = c.getString(1);
Log.v(name,name + (" name"));
} while (c.moveToNext());
}
return lst;
}
是的它工作謝謝你的索引 – user2149618