{
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            "questionId": "580",
            "questionFrontendId": "580",
            "boundTopicId": null,
            "title": "Count Student Number in Departments",
            "titleSlug": "count-student-number-in-departments",
            "content": null,
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            "translatedContent": null,
            "isPaidOnly": true,
            "difficulty": "Medium",
            "likes": 185,
            "dislikes": 30,
            "isLiked": null,
            "similarQuestions": "[]",
            "exampleTestcases": "{\"headers\":{\"Student\":[\"student_id\",\"student_name\",\"gender\",\"dept_id\"],\"Department\":[\"dept_id\",\"dept_name\"]},\"rows\":{\"Student\":[[1,\"Jack\",\"M\",1],[2,\"Jane\",\"F\",1],[3,\"Mark\",\"M\",2]],\"Department\":[[1,\"Engineering\"],[2,\"Science\"],[3,\"Law\"]]}}",
            "categoryTitle": "Database",
            "contributors": [],
            "topicTags": [
                {
                    "name": "Database",
                    "slug": "database",
                    "translatedName": null,
                    "__typename": "TopicTagNode"
                }
            ],
            "companyTagStats": null,
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            "stats": "{\"totalAccepted\": \"44.2K\", \"totalSubmission\": \"78.1K\", \"totalAcceptedRaw\": 44224, \"totalSubmissionRaw\": 78122, \"acRate\": \"56.6%\"}",
            "hints": [
                "Still remember the difference between 'INNER JOIN' and 'OUTTER JOIN' in SQL?",
                "Do you know other expressions using the 'COUNT' function besides 'COUNT(*)'?"
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            "solution": {
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            "status": null,
            "sampleTestCase": "{\"headers\":{\"Student\":[\"student_id\",\"student_name\",\"gender\",\"dept_id\"],\"Department\":[\"dept_id\",\"dept_name\"]},\"rows\":{\"Student\":[[1,\"Jack\",\"M\",1],[2,\"Jane\",\"F\",1],[3,\"Mark\",\"M\",2]],\"Department\":[[1,\"Engineering\"],[2,\"Science\"],[3,\"Law\"]]}}",
            "metaData": "{\n  \"mysql\": [\n    \"Create table If Not Exists Student (student_id int,student_name varchar(45), gender varchar(6), dept_id int)\",\n    \"Create table If Not Exists Department (dept_id int, dept_name varchar(255))\"\n  ],\n  \"mssql\": [\n    \"Create table Student (student_id int,student_name varchar(45), gender varchar(6), dept_id int)\",\n    \"Create table Department (dept_id int, dept_name varchar(255))\"\n  ],\n  \"oraclesql\": [\n    \"Create table Student (student_id int,student_name varchar(45), gender varchar(6), dept_id int)\",\n    \"Create table Department (dept_id int, dept_name varchar(255))\"\n  ],\n  \"database\": true\n}",
            "judgerAvailable": true,
            "judgeType": "large",
            "mysqlSchemas": [
                "Create table If Not Exists Student (student_id int,student_name varchar(45), gender varchar(6), dept_id int)",
                "Create table If Not Exists Department (dept_id int, dept_name varchar(255))",
                "Truncate table Student",
                "insert into Student (student_id, student_name, gender, dept_id) values ('1', 'Jack', 'M', '1')",
                "insert into Student (student_id, student_name, gender, dept_id) values ('2', 'Jane', 'F', '1')",
                "insert into Student (student_id, student_name, gender, dept_id) values ('3', 'Mark', 'M', '2')",
                "Truncate table Department",
                "insert into Department (dept_id, dept_name) values ('1', 'Engineering')",
                "insert into Department (dept_id, dept_name) values ('2', 'Science')",
                "insert into Department (dept_id, dept_name) values ('3', 'Law')"
            ],
            "enableRunCode": true,
            "enableTestMode": false,
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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>\"]}",
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            "__typename": "QuestionNode"
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