{
    "data": {
        "question": {
            "questionId": "3481",
            "questionFrontendId": "3172",
            "categoryTitle": "Database",
            "boundTopicId": 2798976,
            "title": "Second Day Verification",
            "titleSlug": "second-day-verification",
            "content": null,
            "translatedTitle": "第二天验证",
            "translatedContent": null,
            "isPaidOnly": true,
            "difficulty": "Easy",
            "likes": 0,
            "dislikes": 0,
            "isLiked": null,
            "similarQuestions": "[]",
            "contributors": [],
            "langToValidPlayground": null,
            "topicTags": [
                {
                    "name": "Database",
                    "slug": "database",
                    "translatedName": "数据库",
                    "__typename": "TopicTagNode"
                }
            ],
            "companyTagStats": null,
            "codeSnippets": null,
            "stats": "{\"totalAccepted\": \"28\", \"totalSubmission\": \"36\", \"totalAcceptedRaw\": 28, \"totalSubmissionRaw\": 36, \"acRate\": \"77.8%\"}",
            "hints": [],
            "solution": null,
            "status": null,
            "sampleTestCase": "{\"headers\":{\"emails\":[\"email_id\",\"user_id\",\"signup_date\"],\"texts\":[\"text_id\",\"email_id\",\"signup_action\",\"action_date\"]},\"rows\":{\"emails\":[[125,7771,\"2022-06-14 09:30:00\"],[433,1052,\"2022-07-09 08:15:00\"],[234,7005,\"2022-08-20 10:00:00\"]],\"texts\":[[1,125,\"Verified\",\"2022-06-15 08:30:00\"],[2,433,\"Not Verified\",\"2022-07-10 10:45:00\"],[4,234,\"Verified\",\"2022-08-21 09:30:00\"]]}}",
            "metaData": "{\"mysql\":[\"CREATE TABLE If not exists emails (\\n    email_id INT,\\n    user_id INT,\\n    signup_date DATETIME\\n);\",\"CREATE TABLE If not exists texts (\\n    text_id INT,\\n    email_id INT,\\n    signup_action ENUM('Verified', 'Not Verified'),\\n    action_date DATETIME\\n);\"],\"mssql\":[\"CREATE TABLE emails (\\n    email_id INT,\\n    user_id INT,\\n    signup_date DATETIME\\n);\",\"CREATE TABLE texts (\\n    text_id INT,\\n    email_id INT,\\n    signup_action VARCHAR(12),\\n    action_date DATETIME\\n);\"],\"oraclesql\":[\"CREATE TABLE emails (\\n    email_id NUMBER,\\n    user_id NUMBER,\\n    signup_date DATE\\n)\\n\",\"CREATE TABLE texts (\\n    text_id NUMBER,\\n    email_id NUMBER,\\n    signup_action VARCHAR(32),\\n    action_date DATE\\n)\",\"ALTER SESSION SET nls_date_format='YYYY-MM-DD HH24:MI:SS'\"],\"database\":true,\"name\":\"find_second_day_signups\",\"postgresql\":[\"CREATE TABLE emails (\\n    email_id INTEGER,\\n    user_id INTEGER,\\n    signup_date DATE\\n);\\n\",\"CREATE TABLE texts (\\n    text_id INTEGER,\\n    email_id INTEGER,\\n    signup_action VARCHAR(32),\\n    action_date DATE\\n);\\n\",\"SELECT to_char(action_date, 'YYYY-MM-DD HH24:MI:SS') FROM texts;\\n\"],\"pythondata\":[\"emails = pd.DataFrame([], columns=['email_id', 'user_id', 'signup_date']).astype({\\n    'email_id': 'Int64',  # Nullable integer type\\n    'user_id': 'Int64',   # Nullable integer type\\n    'signup_date': 'datetime64[ns]'  # DateTime type for signup date\\n})\",\"texts = pd.DataFrame([], columns=['text_id', 'email_id', 'signup_action', 'action_date']).astype({\\n    'text_id': 'Int64',             # Nullable integer type for text_id\\n    'email_id': 'Int64',            # Nullable integer type for email_id\\n    'signup_action': 'object',      # Using 'object' to store string values for ENUM\\n    'action_date': 'datetime64[ns]' # DateTime type for action_date\\n})\"],\"database_schema\":{\"emails\":{\"email_id\":\"INT\",\"user_id\":\"INT\",\"signup_date\":\"DATETIME\"},\"texts\":{\"text_id\":\"INT\",\"email_id\":\"INT\",\"signup_action\":\"ENUM('Verified', 'Not Verified')\",\"action_date\":\"DATETIME\"}}}",
            "judgerAvailable": true,
            "judgeType": "large",
            "mysqlSchemas": [
                "CREATE TABLE If not exists emails (\n    email_id INT,\n    user_id INT,\n    signup_date DATETIME\n);",
                "CREATE TABLE If not exists texts (\n    text_id INT,\n    email_id INT,\n    signup_action ENUM('Verified', 'Not Verified'),\n    action_date DATETIME\n);",
                "Truncate table emails",
                "insert into emails (email_id, user_id, signup_date) values ('125', '7771', '2022-06-14 09:30:00')",
                "insert into emails (email_id, user_id, signup_date) values ('433', '1052', '2022-07-09 08:15:00')",
                "insert into emails (email_id, user_id, signup_date) values ('234', '7005', '2022-08-20 10:00:00')",
                "Truncate table texts",
                "insert into texts (text_id, email_id, signup_action, action_date) values ('1', '125', 'Verified', '2022-06-15 08:30:00')",
                "insert into texts (text_id, email_id, signup_action, action_date) values ('2', '433', 'Not Verified', '2022-07-10 10:45:00')",
                "insert into texts (text_id, email_id, signup_action, action_date) values ('4', '234', 'Verified', '2022-08-21 09:30:00')"
            ],
            "enableRunCode": true,
            "envInfo": "{\"mysql\":[\"MySQL\",\"<p>\\u7248\\u672c\\uff1a<code>MySQL 8.0<\\/code><\\/p>\"],\"mssql\":[\"MS SQL Server\",\"<p>mssql server 2019.<\\/p>\"],\"oraclesql\":[\"Oracle\",\"<p>Oracle Sql 11.2.<\\/p>\"],\"pythondata\":[\"Pandas\",\"<p>Python 3.10 with Pandas 2.0.2 and NumPy 1.25.0<\\/p>\"],\"postgresql\":[\"PostgreSQL\",\"<p>PostgreSQL 16<\\/p>\"]}",
            "book": null,
            "isSubscribed": false,
            "isDailyQuestion": false,
            "dailyRecordStatus": null,
            "editorType": "CKEDITOR",
            "ugcQuestionId": null,
            "style": "LEETCODE",
            "exampleTestcases": "{\"headers\":{\"emails\":[\"email_id\",\"user_id\",\"signup_date\"],\"texts\":[\"text_id\",\"email_id\",\"signup_action\",\"action_date\"]},\"rows\":{\"emails\":[[125,7771,\"2022-06-14 09:30:00\"],[433,1052,\"2022-07-09 08:15:00\"],[234,7005,\"2022-08-20 10:00:00\"]],\"texts\":[[1,125,\"Verified\",\"2022-06-15 08:30:00\"],[2,433,\"Not Verified\",\"2022-07-10 10:45:00\"],[4,234,\"Verified\",\"2022-08-21 09:30:00\"]]}}",
            "__typename": "QuestionNode"
        }
    }
}