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  <author_name>YarmUI</author_name>
  <author_url>https://blog.hatena.ne.jp/YarmUI/</author_url>
  <blog_title>YarmUI's blog</blog_title>
  <blog_url>https://kfka.hatenablog.jp/</blog_url>
  <categories>
    <anon>node.js</anon>
    <anon>MongoDB</anon>
  </categories>
  <description>随時更新予定 目次 クエリ _id クエリ 動的query ToDo whereとexec var query; if(screen_name) { query = query.where({ screen_name: screen_name }); } else if(user_id) { query = query.where({ user_id: user_id }); } query.exec(function(err, data) { console.log(data); }); 要素数のカウント query.countで要素数をカウントできる.limitとskipは無視される． q…</description>
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  <image_url></image_url>
  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2012-10-09 11:17:09</published>
  <title>mongooseの使い方まとめ</title>
  <type>rich</type>
  <url>https://kfka.hatenablog.jp/entry/2012/10/09/111709</url>
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