leetcode-problemset/leetcode/originData/monthly-transactions-i.json

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        "question": {
            "questionId": "1317",
            "questionFrontendId": "1193",
            "boundTopicId": null,
            "title": "Monthly Transactions I",
            "titleSlug": "monthly-transactions-i",
            "content": "<p>Table: <code>Transactions</code></p>\n\n<pre>\n+---------------+---------+\n| Column Name   | Type    |\n+---------------+---------+\n| id            | int     |\n| country       | varchar |\n| state         | enum    |\n| amount        | int     |\n| trans_date    | date    |\n+---------------+---------+\nid is the primary key of this table.\nThe table has information about incoming transactions.\nThe state column is an enum of type [&quot;approved&quot;, &quot;declined&quot;].\n</pre>\n\n<p>&nbsp;</p>\n\n<p>Write an SQL query to find for each month and country, the number of transactions and their total amount, the number of approved transactions and their total amount.</p>\n\n<p>Return the result table in <strong>any order</strong>.</p>\n\n<p>The query 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> \nTransactions table:\n+------+---------+----------+--------+------------+\n| id   | country | state    | amount | trans_date |\n+------+---------+----------+--------+------------+\n| 121  | US      | approved | 1000   | 2018-12-18 |\n| 122  | US      | declined | 2000   | 2018-12-19 |\n| 123  | US      | approved | 2000   | 2019-01-01 |\n| 124  | DE      | approved | 2000   | 2019-01-07 |\n+------+---------+----------+--------+------------+\n<strong>Output:</strong> \n+----------+---------+-------------+----------------+--------------------+-----------------------+\n| month    | country | trans_count | approved_count | trans_total_amount | approved_total_amount |\n+----------+---------+-------------+----------------+--------------------+-----------------------+\n| 2018-12  | US      | 2           | 1              | 3000               | 1000                  |\n| 2019-01  | US      | 1           | 1              | 2000               | 2000                  |\n| 2019-01  | DE      | 1           | 1              | 2000               | 2000                  |\n+----------+---------+-------------+----------------+--------------------+-----------------------+\n</pre>\n",
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            "difficulty": "Medium",
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            "similarQuestions": "[{\"title\": \"Monthly Transactions II\", \"titleSlug\": \"monthly-transactions-ii\", \"difficulty\": \"Medium\", \"translatedTitle\": null}]",
            "exampleTestcases": "{\"headers\":{\"Transactions\":[\"id\",\"country\",\"state\",\"amount\",\"trans_date\"]},\"rows\":{\"Transactions\":[[121,\"US\",\"approved\",1000,\"2018-12-18\"],[122,\"US\",\"declined\",2000,\"2018-12-19\"],[123,\"US\",\"approved\",2000,\"2019-01-01\"],[124,\"DE\",\"approved\",2000,\"2019-01-07\"]]}}",
            "categoryTitle": "Database",
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            "codeSnippets": [
                {
                    "lang": "MySQL",
                    "langSlug": "mysql",
                    "code": "# Write your MySQL query statement below\n",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "MS SQL Server",
                    "langSlug": "mssql",
                    "code": "/* Write your T-SQL query statement below */\n",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Oracle",
                    "langSlug": "oraclesql",
                    "code": "/* Write your PL/SQL query statement below */\n",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Pandas",
                    "langSlug": "pythondata",
                    "code": "import pandas as pd\n\ndef monthly_transactions(transactions: pd.DataFrame) -> pd.DataFrame:\n    ",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "PostgreSQL",
                    "langSlug": "postgresql",
                    "code": "-- Write your PostgreSQL query statement below\n",
                    "__typename": "CodeSnippetNode"
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            ],
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            "sampleTestCase": "{\"headers\":{\"Transactions\":[\"id\",\"country\",\"state\",\"amount\",\"trans_date\"]},\"rows\":{\"Transactions\":[[121,\"US\",\"approved\",1000,\"2018-12-18\"],[122,\"US\",\"declined\",2000,\"2018-12-19\"],[123,\"US\",\"approved\",2000,\"2019-01-01\"],[124,\"DE\",\"approved\",2000,\"2019-01-07\"]]}}",
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            "mysqlSchemas": [
                "Create table If Not Exists Transactions (id int, country varchar(4), state enum('approved', 'declined'), amount int, trans_date date)",
                "Truncate table Transactions",
                "insert into Transactions (id, country, state, amount, trans_date) values ('121', 'US', 'approved', '1000', '2018-12-18')",
                "insert into Transactions (id, country, state, amount, trans_date) values ('122', 'US', 'declined', '2000', '2018-12-19')",
                "insert into Transactions (id, country, state, amount, trans_date) values ('123', 'US', 'approved', '2000', '2019-01-01')",
                "insert into Transactions (id, country, state, amount, trans_date) values ('124', 'DE', 'approved', '2000', '2019-01-07')"
            ],
            "enableRunCode": true,
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            "envInfo": "{\"mysql\": [\"MySQL\", \"<p><code>MySQL 8.0</code>.</p>\"], \"mssql\": [\"MS SQL Server\", \"<p><code>mssql server 2019</code>.</p>\"], \"oraclesql\": [\"Oracle\", \"<p><code>Oracle Sql 11.2</code>.</p>\"], \"pythondata\": [\"Pandas\", \"<p>Python 3.10 with Pandas 2.0.2 and NumPy 1.25.0</p>\"], \"postgresql\": [\"PostgreSQL\", \"<p>PostgreSQL 16</p>\"]}",
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