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fix: 关卡18题目含义不清 #48

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fix: 关卡18题目含义不清 #48

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2 changes: 1 addition & 1 deletion src/levels/main/level18/README.md
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Expand Up @@ -47,5 +47,5 @@ GROUP BY customer_id, product_id;

## 题目

假设有一个学生表 `student`，包含以下字段：`id`（学号）、`name`（姓名）、`class_id`（班级编号）、`exam_num`（考试次数）、`score`（成绩）。请你编写一个 SQL 查询，统计学生表中的班级编号（class_id），考试次数（exam_num）和每个班级每次考试的总学生人数（total_num）。
假设有一个学生表 `student`，包含以下字段：`id`（学号）、`name`（姓名）、`class_id`（班级编号）、`exam_num`（考试场次）、`score`（成绩）。请你编写一个 SQL 查询，统计学生表中的班级编号（class_id），考试场次（exam_num）和每个班级每场考试的总学生人数（total_num）。