考试
2021-02-25 12:21:34

(单选题)Examine the description o

题目描述

AThe statement executes successfully and returns the student ID and sum of all marks for each student who obtained more than the average mark in each subject.

BThe statement returns an error at the SELECT clause.

CThe statement returns an error at the WHERE clause.

DThe statement returns an error at the ORDER BY clause.

答案解析

[db:答案解析]

C

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