从Android中的sqlite数据库请求多个单元格

Request multiple cells from SQLite database in android

我正在尝试从数据库中的两个不同的单元格调用数据，然后组合它们并在活动中打印出来。

我使用以下代码：

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public Cursor getGermanDescription(String id) {
String[] args = { id };
return (getReadableDatabase()
.rawQuery(
"SELECT _id,Column1,Column2 FROM Databasing_Details WHERE _id=?",
args));

通过上面的内容，我只得到第1列的内容，而不是第2列的内容。我正在将字符串ID传递给另一个活动。

我的光标适配器是：

@重写public void oncreate(bundle savedinstanceState){尝试{super.oncreate(保存的状态)；setContentView(r.layout.main)；

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//Get our passed variable from our intent's EXTRAS
passedVar=getIntent().getStringExtra(ListViewTwo.ID_EXTRA);

//this is our ListView element, obtained by id from our XML layout
ListView myListView = (ListView)findViewById(R.id.list_view);

String string = passedVar;
int passedInt = Integer.parseInt(string);

if (passedInt==1) { passedVar1 = true;

}
//create our database Helper
dbDescriptionHelper=new DatabaseHelper(this);
//a set of results from a database query
ourCursor=dbDescriptionHelper.getGermanDescription(passedVar);

//tell android to start managing the cursor,
startManagingCursor(ourCursor);
//create our adapter
adapter=new SlangAdapter(ourCursor);
//set the adapter!!!
myListView.setAdapter(adapter);

} catch (Exception e) {

Log.e("ERROR","ERROR IN CODE:" + e.toString());

e.printStackTrace();
}

return;
}

class SlangAdapter extends CursorAdapter {
SlangAdapter(Cursor c) {
super(ListViewFinal.this, c);
}
@Override

public void bindView(View row, Context ctxt,
Cursor c) {
DescriptionHolder holder=(DescriptionHolder)row.getTag();
holder.populateFrom(c, dbDescriptionHelper);
}
@Override
public View newView(Context ctxt, Cursor c,
ViewGroup parent) {
LayoutInflater inflater=getLayoutInflater();
View row=inflater.inflate(R.layout.main_row, parent, false);
DescriptionHolder holder=new DescriptionHolder(row);
row.setTag(holder);
return(row);
}
}

static class DescriptionHolder {
private TextView name=null;

DescriptionHolder(View row) {
name=(TextView)row.findViewById(R.id.row);
}

void populateFrom(Cursor c, DatabaseHelper r) {
name.setText(r.getName(c));
}
}

有人能指出我哪里出错了吗？