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【練習問題】 SQL/Question2/MySQL_Questions2.html
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649
【練習問題】 SQL/Question2/MySQL_Questions2.html
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<!DOCTYPE html>
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<html>
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<head>
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<title>MySQL SQL問題集2</title>
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<body>
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<h1>MySQL SQL問題集 part２</h1>
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<p><strong>SQL応用</strong></p>
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<p><a href="../Question1/MySQL_Questions1.html">MySQL SQL問題集 part１</a></p>
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<h2><strong>問１ テーブル作成</strong></h2>
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<p>図のようなテーブルを作成して、データを登録してください。</p>
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<h3>テーブル名</h3>
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<p><strong>item_category</strong></p>
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<h3>カラム</h3>
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<table>
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<thead>
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<tr>
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<th style="text-align:left">物理カラム名</th>
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<th style="text-align:center">論理カラム名</th>
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<th style="text-align:center">型</th>
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<th style="text-align:center">主キー</th>
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<th style="text-align:center">NOT NULL</th>
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<th style="text-align:center">その他</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td style="text-align:left">category_id</td>
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<td style="text-align:center">カテゴリID</td>
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<td style="text-align:center">INT</td>
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<td style="text-align:center">〇</td>
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<td style="text-align:center"></td>
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<td style="text-align:center">自動採番</td>
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</tr>
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<tr>
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<td style="text-align:left">category_name</td>
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<td style="text-align:center">カテゴリ名</td>
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<td style="text-align:center">VARCHAR(256)</td>
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<td style="text-align:center"></td>
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<td style="text-align:center">〇</td>
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<td style="text-align:center"></td>
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<tr>
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<td style="text-align:left"></td>
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<td style="text-align:center"></td>
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<td style="text-align:center"></td>
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<td style="text-align:center"></td>
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<td style="text-align:center"></td>
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</tr>
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</tbody>
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</table>
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<p><img src="../img/question2/図1.png" alt="図1"></p>
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<h2><strong>問２ テーブル作成</strong></h2>
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<p>図のようなテーブルを作成して、データを登録してください。</p>
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<h3>テーブル名</h3>
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<p><strong>items</strong></p>
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<h3>カラム</h3>
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<table>
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<thead>
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<tr>
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<th style="text-align:left">物理カラム名</th>
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<th style="text-align:center">論理カラム名</th>
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<th style="text-align:center">型</th>
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<th style="text-align:center">主キー</th>
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<th style="text-align:center">外部キー</th>
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<th style="text-align:center">NOT NULL</th>
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<th style="text-align:center">その他</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td style="text-align:left">item_id</td>
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<td style="text-align:center">アイテムID</td>
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<td style="text-align:center">INT</td>
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<td style="text-align:center">〇</td>
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<td style="text-align:center"></td>
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<td style="text-align:center"></td>
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<td style="text-align:center">自動採番</td>
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</tr>
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<tr>
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<td style="text-align:left">name</td>
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<td style="text-align:center">アイテム名</td>
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<td style="text-align:center">VARCHAR(256)</td>
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<td style="text-align:center"></td>
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<td style="text-align:center"></td>
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<td style="text-align:center">〇</td>
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<td style="text-align:center"></td>
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</tr>
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<tr>
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<td style="text-align:left">price</td>
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<td style="text-align:center">価格</td>
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<td style="text-align:center">INT</td>
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<td style="text-align:center"></td>
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<td style="text-align:center"></td>
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<td style="text-align:center">〇</td>
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<td style="text-align:center"></td>
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</tr>
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<tr>
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<td style="text-align:left">category_id</td>
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<td style="text-align:center">カテゴリID</td>
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||||
<td style="text-align:center">INT</td>
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||||
<td style="text-align:center"></td>
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<td style="text-align:center">item_categoryのcategory_id</td>
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<td style="text-align:center"></td>
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<td style="text-align:center"></td>
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</tr>
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<tr>
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<td style="text-align:left"></td>
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<td style="text-align:center"></td>
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<td style="text-align:center"></td>
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<td style="text-align:center"></td>
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<td style="text-align:center"></td>
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<td style="text-align:center"></td>
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<td style="text-align:center"></td>
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</tr>
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</tbody>
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</table>
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<p><img src="../img/question2/図2.png" alt="図2"></p>
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<h2><strong>問３ SELECT文作成</strong></h2>
|
||||
<p>図のような検索結果になるSQLを作成してください。</p>
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||||
<table>
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<thead>
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<tr>
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<th style="text-align:left">条件</th>
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</tr>
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</thead>
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<tbody>
|
||||
<tr>
|
||||
<td style="text-align:left">itemsテーブルとitem_categoryテーブルを結合</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td style="text-align:left">category_idのカラムは一個だけしか出さないこと</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td></td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
<p><img src="../img/question2/図3.png" alt="図3"></p>
|
||||
<p>※A5SQLを使用した場合は図と同じ表示になりません。その場合、一番右側のカラム名はname_1で構いません。</p>
|
||||
|
||||
<h2><strong>問４ SELECT文作成</strong></h2>
|
||||
<p>図のような検索結果になるSQLを作成してください。</p>
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
<th style="text-align:left">条件</th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody>
|
||||
<tr>
|
||||
<td style="text-align:left">priceを低い⇒高いに並びかえる</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td></td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
<p><img src="../img/question2/図4.png" alt="図4"></p>
|
||||
<p>※A5SQLを使用した場合は図と同じ表示になりません。その場合、一番右側のカラム名はname_1で構いません。</p>
|
||||
|
||||
<h2><strong>問５ SELECT文作成</strong></h2>
|
||||
<p>図のような検索結果になるSQLを作成してください。</p>
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
<th style="text-align:left">条件</th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody>
|
||||
<tr>
|
||||
<td style="text-align:left">カテゴリが家具のデータのみ抽出</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td></td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
<p><img src="../img/question2/図5.png" alt="図5"></p>
|
||||
<p>※A5SQLを使用した場合は図と同じ表示になりません。その場合、一番右側のカラム名はname_1で構いません。</p>
|
||||
|
||||
<h2><strong>問６ SELECT文作成</strong></h2>
|
||||
<p>図のような検索結果になるSQLを作成してください。</p>
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
<th style="text-align:left">条件</th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody>
|
||||
<tr>
|
||||
<td style="text-align:left">金額が1,000円から50,000円のものだけ抽出</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td></td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
<p><img src="../img/question2/図6.png" alt="図6"></p>
|
||||
<p>※A5SQLを使用した場合は図と同じ表示になりません。その場合、一番右側のカラム名はname_1で構いません。</p>
|
||||
|
||||
<h2><strong>問７ SELECT文作成</strong></h2>
|
||||
<p>図のような検索結果になるSQLを作成してください。</p>
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
<th style="text-align:left">条件</th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody>
|
||||
<tr>
|
||||
<td style="text-align:left">itemsのレコード数を抽出</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td style="text-align:left">別名をつけて抽出</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td></td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
<p><img src="../img/question2/図7.png" alt="図7"></p>
|
||||
<h2><strong>問８ SELECT文作成</strong></h2>
|
||||
<p>図のような検索結果になるSQLを作成してください。</p>
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
<th style="text-align:left">条件</th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody>
|
||||
<tr>
|
||||
<td style="text-align:left">items内の一番価格が高いレコードを抽出</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td style="text-align:left">サブクエリを使うこと</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td></td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
<p><img src="../img/question2/図8.png" alt="図8"></p>
|
||||
<p>※A5SQLを使用した場合は図と同じ表示になりません。その場合、一番右側のカラム名はname_1で構いません。</p>
|
||||
|
||||
<h2><strong>問９ SELECT文作成</strong></h2>
|
||||
<p>図のような検索結果になるSQLを作成してください。</p>
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
<th style="text-align:left">条件</th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody>
|
||||
<tr>
|
||||
<td style="text-align:left">nameから「の」を含むものだけ抽出</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td></td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
<p><img src="../img/question2/図9.png" alt="図9"></p>
|
||||
<p>※A5SQLを使用した場合は図と同じ表示になりません。その場合、一番右側のカラム名はname_1で構いません。</p>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
Reference in New Issue
Block a user