{ "data": { "question": { "questionId": "2143", "questionFrontendId": "1990", "categoryTitle": "Database", "boundTopicId": 978814, "title": "Count the Number of Experiments", "titleSlug": "count-the-number-of-experiments", "content": null, "translatedTitle": "统计实验的数量", "translatedContent": null, "isPaidOnly": true, "difficulty": "Medium", "likes": 11, "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\": \"2.7K\", \"totalSubmission\": \"5.8K\", \"totalAcceptedRaw\": 2703, \"totalSubmissionRaw\": 5759, \"acRate\": \"46.9%\"}", "hints": [], "solution": null, "status": null, "sampleTestCase": "{\"headers\":{\"Experiments\":[\"experiment_id\",\"platform\",\"experiment_name\"]},\"rows\":{\"Experiments\":[[4,\"IOS\",\"Programming\"],[13,\"IOS\",\"Sports\"],[14,\"Android\",\"Reading\"],[8,\"Web\",\"Reading\"],[12,\"Web\",\"Reading\"],[18,\"Web\",\"Programming\"]]}}", "metaData": "{\"mysql\":[\"Create table If Not Exists Experiments (experiment_id int, platform ENUM('Android', 'IOS', 'Web'), experiment_name ENUM('Reading', 'Sports', 'Programming'))\"],\"mssql\":[\"Create table Experiments (experiment_id int, platform VARCHAR(7) NOT NULL CHECK (platform IN ('Android', 'IOS', 'Web')), experiment_name VARCHAR(11) NOT NULL CHECK (experiment_name IN ('Reading', 'Sports', 'Programming')))\"],\"oraclesql\":[\"Create table Experiments (experiment_id int, platform VARCHAR(7) NOT NULL CHECK (platform IN ('Android', 'IOS', 'Web')), experiment_name VARCHAR(11) NOT NULL CHECK (experiment_name IN ('Reading', 'Sports', 'Programming')))\"],\"database\":true,\"name\":\"count_experiments\",\"pythondata\":[\"Experiments = pd.DataFrame([], columns=['experiment_id', 'platform', 'experiment_name']).astype({'experiment_id':'Int64', 'platform':'object', 'experiment_name':'object'})\"],\"postgresql\":[\"Create table If Not Exists Experiments (experiment_id int, platform VARCHAR(30) CHECK (platform IN ('Android', 'IOS', 'Web')), experiment_name VARCHAR(30) CHECK (experiment_name IN ('Reading', 'Sports', 'Programming')))\\n\"],\"database_schema\":{\"Experiments\":{\"experiment_id\":\"INT\",\"platform\":\"ENUM('Android', 'IOS', 'Web')\",\"experiment_name\":\"ENUM('Reading', 'Sports', 'Programming')\"}}}", "judgerAvailable": true, "judgeType": "large", "mysqlSchemas": [ "Create table If Not Exists Experiments (experiment_id int, platform ENUM('Android', 'IOS', 'Web'), experiment_name ENUM('Reading', 'Sports', 'Programming'))", "Truncate table Experiments", "insert into Experiments (experiment_id, platform, experiment_name) values ('4', 'IOS', 'Programming')", "insert into Experiments (experiment_id, platform, experiment_name) values ('13', 'IOS', 'Sports')", "insert into Experiments (experiment_id, platform, experiment_name) values ('14', 'Android', 'Reading')", "insert into Experiments (experiment_id, platform, experiment_name) values ('8', 'Web', 'Reading')", "insert into Experiments (experiment_id, platform, experiment_name) values ('12', 'Web', 'Reading')", "insert into Experiments (experiment_id, platform, experiment_name) values ('18', 'Web', 'Programming')" ], "enableRunCode": true, "envInfo": "{\"mysql\":[\"MySQL\",\"
\\u7248\\u672c\\uff1a mssql server 2019.<\\/p>\"],\"oraclesql\":[\"Oracle\",\" Oracle Sql 11.2.<\\/p>\"],\"pythondata\":[\"Pandas\",\" Python 3.10 with Pandas 2.0.2 and NumPy 1.25.0<\\/p>\"],\"postgresql\":[\"PostgreSQL\",\" PostgreSQL 16<\\/p>\"]}",
"book": null,
"isSubscribed": false,
"isDailyQuestion": false,
"dailyRecordStatus": null,
"editorType": "CKEDITOR",
"ugcQuestionId": null,
"style": "LEETCODE",
"exampleTestcases": "{\"headers\":{\"Experiments\":[\"experiment_id\",\"platform\",\"experiment_name\"]},\"rows\":{\"Experiments\":[[4,\"IOS\",\"Programming\"],[13,\"IOS\",\"Sports\"],[14,\"Android\",\"Reading\"],[8,\"Web\",\"Reading\"],[12,\"Web\",\"Reading\"],[18,\"Web\",\"Programming\"]]}}",
"__typename": "QuestionNode"
}
}
}MySQL 8.0<\\/code><\\/p>\"],\"mssql\":[\"MS SQL Server\",\"