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db_question/Question2/【+α】MySQL_Questions2.html
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<body>
<h1>MySQL SQL問題集 part2+α</h1>
<p><strong>前提条件</strong>
SQLフォルダにあるSQLファイルの内容をすべて実行していること</p>
<h2><strong>問1 SELECT文作成</strong></h2>
<p>商品一覧を表示</p>
<p><img src="../img/question2/+α/図1.png" alt="図1"></p>
<h2><strong>問2 SELECT文作成</strong></h2>
<p>注文一覧を表示</p>
<p><img src="../img/question2/+α/図2.png" alt="図2"></p>
<h2><strong>問3 SELECT文作成</strong></h2>
<p>各注文毎の合計額を表示</p>
<p><img src="../img/question2/+α/図3.png" alt="図3"></p>
<h2><strong>問4 SELECT文作成</strong></h2>
<p>月別注文数を表示</p>
<p><img src="../img/question2/+α/図4.png" alt="図4"></p>
<h2><strong>問5 SELECT文作成</strong></h2>
<p>年別注文数を表示</p>
<p><img src="../img/question2/+α/図5.png" alt="図5"></p>
<h2><strong>問6 SELECT文作成</strong></h2>
<p>全体の売上を表示</p>
<p><img src="../img/question2/+α/図6.png" alt="図8"></p>
<h2><strong>問7 SELECT文作成</strong></h2>
<p>カテゴリ別売上額を表示</p>
<p><img src="../img/question2/+α/図7.png" alt="図7"></p>
<h2><strong>問8 SELECT文作成</strong></h2>
<p>商品別売上額を表示</p>
<p><img src="../img/question2/+α/図8.png" alt="図6"></p>
<h2><strong>問9 SELECT文作成</strong></h2>
<p>各カテゴリの構成比を表示</p>
<pre class="hljs"><code><div>※構成比
ある項目が全体に対してどれぐらい占めているかの割合です。
計算式:カテゴリー合計額 ÷ 全体の売上高
</div></code></pre>
<p><img src="../img/question2/+α/図9.png" alt="図9"></p>
<h2><strong>問10 SELECT文作成</strong></h2>
<p>各商品別の構成比を表示</p>
<p><img src="../img/question2/+α/図10.png" alt="図10"></p>
</body>
</html>