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:

Question

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:

BlackTom AI · Accepted Answer

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 ORDER BY clause uses desc, which would sort in descending order, contradicting the requirement of ascending order by profit.
Option 2: SELECT title, retail - cost "Profit" FROM books WHERE profit >= 10.00 ORDER BY "Profit";
- Problems: This defines an alias Profit for the expression retail - cost, but the WHERE clause references profit, which is not a valid alias at the WHERE stage (WHERE is evaluated before SELECT aliases are assigned). Also, quoting of the alias in ORDER BY as "Profit" may work in some dialects, but the WHERE clause usage makes the statement invalid in standard SQL.
Option 3: SELECT title, retail - cost Profit FROM books WHERE retail-cost  >= 10.00 ORDER BY profit;
- This statement correctly defines an alias named Profit for the expression retail - cost by writing retail - cost Profit (alias syntax is allowed in many SQL dialects without AS). The WHERE clause filters rows where retail - cost is at least 10.00, which matches the requirement. The ORDER BY profit uses the alias, which is valid in many systems and will sort by the computed profit in ascending order by default behavior. This option aligns with the goal and uses a proper aliasing and ordering approach.
Option 4: SELECT title, retail - cost profit FROM books WHERE retail - cost >= 10.00 ORDER BY "PROFIT" desc;
- Problems: It defines the alias profit but then orders by a quoted uppercase alias "PROFIT" in descending order. Depending on the dialect, mixing case sensitivity and quoting can yield an error or be treated as a different identifier. Also, the clause ORDER BY desc indicates descending order, which contradicts the requirement of ascending order. The combination of potential alias handling and the wrong sort direction makes this option unreliable.
In summary, option 3 is the most consistent with the task: it creates a Profit alias for the difference (retail - cost), applies the filter retail - cost >= 10.00, and orders by the computed profit using the alias, which generally yields ascending order when not explicitly reversed. The other options either misplace the alias, misuse the WHERE or ORDER BY scopes, or specify an incorrect sort direction.}

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: 单项选择题

类似问题

SELECT the SQL statement that lists the five highest paid employees

Select the SQL Statement will list the first name, last name and calculate the number of years the staff member has been employed.

Select the SQL Statement that will count all of the office locations that are in Australia

Select the SQL statement that will list the first name and last name of staff, and order the result by the last name in alphabetical order.

Which of the following SQL statements can be used to select all the records from a table named "Persons" where the "firstName" is "Joe"?

HAVING is used to filter grouped results, while WHERE filters rows before grouping.

Which SQL statement below does the following MongoDB script most closely correspond to? db.students.find( {age: 18}, {name: 1, _id :0} )

tblScores [table] StudentID | Score 1 | 54 2 | 53 3 | 52 4 | 51 5 | 50 6 | 49 7 | 48 8 | 47 9 | 46 10 | 50 [/table] Query1SELECT StudentID, ScoreFROM tblScoresWHERE Score > 50 If Query1 was run on the table how many records would be returned?

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单