현재 소스는 데이터베이스에있는 내용이 리스트뷰의 한행에 모두 출력됩니다.

한행에 하나의 데이터만 출력되게 하려면 어떻게 접근해야하나요 ㅠ 도움좀주세요 ㅠ

package com.cookandroid.exam18;

import java.util.ArrayList;

import android.app.Activity;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;

public class SecondActivity extends Activity {
 myDBHelper myHelper;
 SQLiteDatabase sqlDB;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  // TODO Auto-generated method stub
  super.onCreate(savedInstanceState);
  setContentView(R.layout.second);
  Button btn = (Button) findViewById(R.id.btn);
  
  
  final ArrayList<String> mldList = new ArrayList<String>();
  ListView list = (ListView) findViewById(R.id.listView1);

  final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
    android.R.layout.simple_list_item_1, mldList);
  list.setAdapter(adapter);

  myHelper = new myDBHelper(this);

  btn.setOnClickListener(new View.OnClickListener() {

   public void onClick(View v) {
    sqlDB = myHelper.getReadableDatabase();
    Cursor cursor;
    cursor = sqlDB.rawQuery("SELECT * FROM aaaTable;", null);
    String strNames = "그룹이름" + "\r\n" + "--------" + "\r\n";
   

    while (cursor.moveToNext()) {
     strNames += cursor.getString(0) + "\r\n";
     
    }
    
    mldList.add(strNames);
    adapter.notifyDataSetChanged();

    cursor.close();
    sqlDB.close();
   }
  });
 }
 public class myDBHelper extends SQLiteOpenHelper {
  public myDBHelper(Context context) {
   super(context, "aaaDB", null, 1);
  }

  @Override
  public void onCreate(SQLiteDatabase db) {
   db.execSQL("CREATE TABLE  aaaTable ( gName CHAR(20) PRIMARY KEY);");
  }

  @Override
  public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
   db.execSQL("DROP TABLE IF EXISTS aaaTable");
   onCreate(db);
  }
 }

}

전체 소스입니다.

커서를 조정해야할것같은데 어렵내요 ㅠ