题目
题目

BU.330.770.T2.FA25 Quiz 3- Requires Respondus LockDown Browser

单项选择题

Which of the following results in each book having a profit of at least $10.00 in ascending order by profit? For your information, the BOOKS table contains the following columns:     

选项
A.SELECT * FROM books WHERE retail - cost >= 10.00 ORDER BY profit desc;
B.SELECT title, retail - cost "Profit"  FROM books WHERE profit >= 10.00 ORDER BY "Profit";
C.SELECT title, retail - cost Profit  FROM books WHERE retail-cost  >= 10.00 ORDER BY profit;
D.SELECT title, retail - cost profit FROM books WHERE retail - cost >= 10.00 ORDER BY "PROFIT" desc;
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思路分析
This question asks which of the given SQL statements would produce a result where every book has a profit of at least 10.00, and the results are ordered in ascending order by profit. Option 1: SELECT * FROM books WHERE retail - cost >= 10.00 ORDER BY profit desc; - Problems: It selects all columns with *, but then tries to ORDER BY profit. Since no column or alias named profit is defined in the SELECT list (it uses an expression retail - cost without an alias), the query may fail or treat profit as an undefined column. Additionally, the ......Login to view full explanation

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