From bfc54790bd2d0a83399266cde2fc2520dd93755e Mon Sep 17 00:00:00 2001
From: mba1398 <26516464+mba1398@users.noreply.github.com>
Date: Wed, 7 Jul 2021 18:46:19 +0800
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diff --git a/ch08: 秋招秘籍 C.md b/ch08: 秋招秘籍 C.md
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--- a/ch08: 秋招秘籍 C.md	
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-11
+# 练习一：行转列
+假设有如下比赛结果
+```plain
++------------+-----------+
+|    cdate   |   result  |
++------------+-----------+
+|  2021-1-1  |     胜    |
+|  2021-1-1  |     负    |
+|  2021-1-3  |     胜    |
+|  2021-1-3  |     负    |
+|  2021-1-1  |     胜    |
+|  2021-1-3  |     负    |
++------------+-----------+
+```
+请使用 SQL 根据比赛结果生成如下结果：
++------------+-----+-----|
+|  比赛日期   | 胜  | 负  |
++------------+-----------+
+|  2021-1-1  |  2  |  1  |
+|  2021-1-2  |  2  |  1  |
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