{
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            "questionFrontendId": "1112",
            "boundTopicId": null,
            "title": "Highest Grade For Each Student",
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            "isPaidOnly": true,
            "difficulty": "Medium",
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            "isLiked": null,
            "similarQuestions": "[{\"title\": \"Department Highest Salary\", \"titleSlug\": \"department-highest-salary\", \"difficulty\": \"Medium\", \"translatedTitle\": null}]",
            "exampleTestcases": "{\"headers\":{\"Enrollments\":[\"student_id\",\"course_id\",\"grade\"]},\"rows\":{\"Enrollments\":[[2,2,95],[2,3,95],[1,1,90],[1,2,99],[3,1,80],[3,2,75],[3,3,82]]}}",
            "categoryTitle": "Database",
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            "topicTags": [
                {
                    "name": "Database",
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            "stats": "{\"totalAccepted\": \"55.3K\", \"totalSubmission\": \"77.8K\", \"totalAcceptedRaw\": 55257, \"totalSubmissionRaw\": 77848, \"acRate\": \"71.0%\"}",
            "hints": [],
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                "id": "2051",
                "canSeeDetail": false,
                "paidOnly": true,
                "hasVideoSolution": false,
                "paidOnlyVideo": true,
                "__typename": "ArticleNode"
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            "status": null,
            "sampleTestCase": "{\"headers\":{\"Enrollments\":[\"student_id\",\"course_id\",\"grade\"]},\"rows\":{\"Enrollments\":[[2,2,95],[2,3,95],[1,1,90],[1,2,99],[3,1,80],[3,2,75],[3,3,82]]}}",
            "metaData": "{\"mysql\": [\"Create table If Not Exists Enrollments (student_id int, course_id int, grade int)\"], \"mssql\": [\"Create table Enrollments (student_id int, course_id int, grade int)\"], \"oraclesql\": [\"Create table Enrollments (student_id int, course_id int, grade int)\"], \"database\": true, \"name\": \"highest_grade\", \"pythondata\": [\"Enrollments = pd.DataFrame([], columns=['student_id', 'course_id', 'grade']).astype({'student_id':'Int64', 'course_id':'Int64', 'grade':'Int64'})\"], \"postgresql\": [\"\\nCreate table If Not Exists Enrollments (student_id int, course_id int, grade int)\"], \"database_schema\": {\"Enrollments\": {\"student_id\": \"INT\", \"course_id\": \"INT\", \"grade\": \"INT\"}}}",
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            "judgeType": "large",
            "mysqlSchemas": [
                "Create table If Not Exists Enrollments (student_id int, course_id int, grade int)",
                "Truncate table Enrollments",
                "insert into Enrollments (student_id, course_id, grade) values ('2', '2', '95')",
                "insert into Enrollments (student_id, course_id, grade) values ('2', '3', '95')",
                "insert into Enrollments (student_id, course_id, grade) values ('1', '1', '90')",
                "insert into Enrollments (student_id, course_id, grade) values ('1', '2', '99')",
                "insert into Enrollments (student_id, course_id, grade) values ('3', '1', '80')",
                "insert into Enrollments (student_id, course_id, grade) values ('3', '2', '75')",
                "insert into Enrollments (student_id, course_id, grade) values ('3', '3', '82')"
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            "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>\"], \"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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