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小墨
2022-05-02 23:44:12 +08:00
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leetcode-cn/originData/capital-gainloss.json
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@@ -12,7 +12,7 @@
"translatedContent": "<p><code>Stocks</code>&nbsp;表：</p>\n\n<pre>+---------------+---------+\n| Column Name | Type |\n+---------------+---------+\n| stock_name | varchar |\n| operation | enum |\n| operation_day | int |\n| price | int |\n+---------------+---------+\n(stock_name, day) 是这张表的主键\noperation 列使用的是一种枚举类型，包括：(&#39;Sell&#39;,&#39;Buy&#39;)\n此表的每一行代表了名为 stock_name 的某支股票在 operation_day 这一天的操作价格。\n保证股票的每次&#39;Sell&#39;操作前，都有相应的&#39;Buy&#39;操作。\n</pre>\n\n<p>&nbsp;</p>\n\n<p>编写一个SQL查询来报告每支股票的资本损益。</p>\n\n<p>股票的资本损益是一次或多次买卖股票后的全部收益或损失。</p>\n\n<p>以任意顺序返回结果即可。</p>\n\n<p>SQL查询结果的格式如下例所示：</p>\n\n<pre><code>Stocks</code> 表:\n+---------------+-----------+---------------+--------+\n| stock_name | operation | operation_day | price |\n+---------------+-----------+---------------+--------+\n| Leetcode | Buy | 1 | 1000 |\n| Corona Masks | Buy | 2 | 10 |\n| Leetcode | Sell | 5 | 9000 |\n| Handbags | Buy | 17 | 30000 |\n| Corona Masks | Sell | 3 | 1010 |\n| Corona Masks | Buy | 4 | 1000 |\n| Corona Masks | Sell | 5 | 500 |\n| Corona Masks | Buy | 6 | 1000 |\n| Handbags | Sell | 29 | 7000 |\n| Corona Masks | Sell | 10 | 10000 |\n+---------------+-----------+---------------+--------+\n\nResult 表:\n+---------------+-------------------+\n| stock_name | capital_gain_loss |\n+---------------+-------------------+\n| Corona Masks | 9500 |\n| Leetcode | 8000 |\n| Handbags | -23000 |\n+---------------+-------------------+\nLeetcode 股票在第一天以1000美元的价格买入，在第五天以9000美元的价格卖出。资本收益=9000-1000=8000美元。\nHandbags 股票在第17天以30000美元的价格买入，在第29天以7000美元的价格卖出。资本损失=7000-30000=-23000美元。\nCorona Masks 股票在第1天以10美元的价格买入，在第3天以1010美元的价格卖出。在第4天以1000美元的价格再次购买，在第5天以500美元的价格出售。最后，它在第6天以1000美元的价格被买走，在第10天以10000美元的价格被卖掉。资本损益是每次（&rsquo;Buy&#39;-&gt;&#39;Sell&#39;）操作资本收益或损失的和=（1010-10）+（500-1000）+（10000-1000）=1000-500+9000=9500美元。\n</pre>\n",
"isPaidOnly": false,
"difficulty": "Medium",
"likes": 15,
"likes": 21,
"dislikes": 0,
"isLiked": null,
"similarQuestions": "[]",
@@ -47,7 +47,7 @@
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"hints": [],
"solution": null,
"status": null,