如何將查詢結果保存到單獨的表中？

Question

我有一個數據庫，允許用戶查詢數據庫中的書籍。

我在嘗試將查詢結果保存爲「書籤」。用戶輸入一個查詢，然後可以點擊一個結果來查看該特定書籍的詳細信息。

然後有一個菜單選項允許用戶將查詢保存到他們的書籤。保存的查詢被插入到數據庫表中。書籤是一種將保存的數據加載爲列表視圖的活動，允許用戶管理其書籤。

除保存外，所有設置和工作都很精彩。我不知道如何，或者當選擇保存的菜單選項時，將查詢結果導入數據庫的最佳方式是什麼。

一個標準的sqlite插入工作，但沒有具體的查詢結果數據。

某些代碼：

package com.example.newdatabase; 

import android.app.Activity; 
import android.content.Intent; 
import android.database.Cursor; 
import android.database.DatabaseUtils; 
import android.os.AsyncTask; 
import android.os.Bundle; 
import android.view.Menu; 
import android.view.MenuInflater; 
import android.view.MenuItem; 
import android.view.View; 
import android.widget.AdapterView; 
import android.widget.ListView; 
import android.widget.SimpleCursorAdapter; 
import android.widget.AdapterView.OnItemClickListener; 
import android.widget.Toast; 


public class DetailView extends Activity 
{ 
    private DBAdapter dbHelper; 
    private SimpleCursorAdapter dataAdapter; 
    private long rowid;//row for book from position in database 
    public static final String BOOKM_ID = "rowid"; 

@Override 
    public void onCreate(Bundle savedInstanceState) 
    { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.detailviewlist); 

    rowid=getIntent().getExtras().getLong(TitleSearch.ROW_ID);//passed from TitleSearch pass the row id 

     dbHelper = new DBAdapter(this); 
     dbHelper.open(); 

     //loads data into list 
     displayListView(); 
    } 

private void displayListView() 
{ 
    Cursor cursor=dbHelper.getABOOK(rowid);//cursor and query method only shows one book 

    //defines columns to bind 
    String [] columns =new String[] 
      { 
       DBAdapter.KEY_TITLE, 
       DBAdapter.KEY_AUTHOR, 
       DBAdapter.KEY_EDITION, 
       DBAdapter.KEY_PUBLISHER, 
       DBAdapter.KEY_DESCRIPTION, 
       DBAdapter.KEY_OPAC, 
       DBAdapter.KEY_LOCATION, 
       DBAdapter.KEY_CALL, 
       DBAdapter.KEY_COPIES, 
       DBAdapter.KEY_STATUS, 

      }; 

    // the XML defined views which the data will be bound to 
     int[] to = new int[] 
     { 
     R.id.title, 
     R.id.author, 
     R.id.edition, 
     R.id.publisher, 
     R.id.description, 
     R.id.subject, 
     R.id.location, 
     R.id.callnum, 
     R.id.copies, 
     R.id.status, 
     }; 

    // create the adapter using the cursor pointing to the desired data 
     //as well as the layout information 
     dataAdapter = new SimpleCursorAdapter(
     this, R.layout.detailbook, 
     cursor, 
     columns, 
     to, 
     0); 

    ListView listView = (ListView) findViewById(R.id.listView2); 
     // Assign adapter to ListView 
     listView.setAdapter(dataAdapter); 

} 
    @Override 
    public boolean onCreateOptionsMenu(Menu menu) //save menu 
    { 
     super.onCreateOptionsMenu(menu); 
     MenuInflater inflater = getMenuInflater(); 
     inflater.inflate(R.menu.savemenu, menu); 
     return true; 

    } 



    /* @Override 
    public boolean onOptionsItemSelected(MenuItem item) //lauches the bookmark when saved 
    { 
     Intent addContact = new Intent(DetailView.this, Bookmark.class); 
     startActivity(addContact); 
     return super.onOptionsItemSelected(item); 
    }*/ 


    public boolean onOptionsItemSelected(MenuItem item)//menu action 
    { 

     switch (item.getItemId()) 
     { 
     case R.id.addsave: 
      // Single menu item is selected to save book info 

      //adds info into bookmark on save click 

      //this is where i am having an issue 





      Toast.makeText(DetailView.this, "The book has been saved!", Toast.LENGTH_SHORT).show();//feedback for user 
      return true; 

     default: 
      return super.onOptionsItemSelected(item); 

     } 

    } //end of options 
    }//end of detail view 

我試圖從該getABOOK（ROWID）查詢的結果保存成書籤使用的數據庫表。

除非有更好的方法來保存結果。

Answer 1

我建議在同一個表中添加一個名爲Bookmark的新列，並在用戶選擇書籤時將書籤的時間戳添加到特定的行中。

現在，在書籤視圖中，您可以簡單地查詢書籤不爲空的所有行。