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            "title": "Reformat Department Table",
            "titleSlug": "reformat-department-table",
            "content": "<p>Table: <code>Department</code></p>\n\n<pre>\n+-------------+---------+\n| Column Name | Type    |\n+-------------+---------+\n| id          | int     |\n| revenue     | int     |\n| month       | varchar |\n+-------------+---------+\nIn SQL,(id, month) is the primary key of this table.\nThe table has information about the revenue of each department per month.\nThe month has values in [&quot;Jan&quot;,&quot;Feb&quot;,&quot;Mar&quot;,&quot;Apr&quot;,&quot;May&quot;,&quot;Jun&quot;,&quot;Jul&quot;,&quot;Aug&quot;,&quot;Sep&quot;,&quot;Oct&quot;,&quot;Nov&quot;,&quot;Dec&quot;].\n</pre>\n\n<p>&nbsp;</p>\n\n<p>Reformat the table such that there is a department id column and a revenue column <strong>for each month</strong>.</p>\n\n<p>Return the result table in <strong>any order</strong>.</p>\n\n<p>The result format is in the following example.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> \nDepartment table:\n+------+---------+-------+\n| id   | revenue | month |\n+------+---------+-------+\n| 1    | 8000    | Jan   |\n| 2    | 9000    | Jan   |\n| 3    | 10000   | Feb   |\n| 1    | 7000    | Feb   |\n| 1    | 6000    | Mar   |\n+------+---------+-------+\n<strong>Output:</strong> \n+------+-------------+-------------+-------------+-----+-------------+\n| id   | Jan_Revenue | Feb_Revenue | Mar_Revenue | ... | Dec_Revenue |\n+------+-------------+-------------+-------------+-----+-------------+\n| 1    | 8000        | 7000        | 6000        | ... | null        |\n| 2    | 9000        | null        | null        | ... | null        |\n| 3    | null        | 10000       | null        | ... | null        |\n+------+-------------+-------------+-------------+-----+-------------+\n<strong>Explanation:</strong> The revenue from Apr to Dec is null.\nNote that the result table has 13 columns (1 for the department id + 12 for the months).\n</pre>\n",
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            "exampleTestcases": "{\"headers\":{\"Department\":[\"id\",\"revenue\",\"month\"]},\"rows\":{\"Department\":[[1,8000,\"Jan\"],[2,9000,\"Jan\"],[3,10000,\"Feb\"],[1,7000,\"Feb\"],[1,6000,\"Mar\"]]}}",
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                    "lang": "Pandas",
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                    "code": "import pandas as pd\n\ndef reformat_table(department: pd.DataFrame) -> pd.DataFrame:\n    ",
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            "sampleTestCase": "{\"headers\":{\"Department\":[\"id\",\"revenue\",\"month\"]},\"rows\":{\"Department\":[[1,8000,\"Jan\"],[2,9000,\"Jan\"],[3,10000,\"Feb\"],[1,7000,\"Feb\"],[1,6000,\"Mar\"]]}}",
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                "Create table If Not Exists Department (id int, revenue int, month varchar(5))",
                "Truncate table Department",
                "insert into Department (id, revenue, month) values ('1', '8000', 'Jan')",
                "insert into Department (id, revenue, month) values ('2', '9000', 'Jan')",
                "insert into Department (id, revenue, month) values ('3', '10000', 'Feb')",
                "insert into Department (id, revenue, month) values ('1', '7000', 'Feb')",
                "insert into Department (id, revenue, month) values ('1', '6000', 'Mar')"
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