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Listening Quiz: Giải Thích Từng Bước Một Câu Truy Vấn SQL – Easy Level
Th6 3, 2025
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Nhà khoa học dữ liệu (English for Data Scientist)
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1.
Which columns does the SELECT part choose?
Customer ID and order date
Customer name and total sales
Product name and total sales
Customer name and sales tax
Explanation:
Sarah says the SELECT part chooses the customer name and total sales.
2.
What does the FROM clause do?
It removes duplicate rows
It calculates the total sales
It sorts the data by sales amount
It tells us the table to get data from
Explanation:
Sarah explains that the FROM clause tells us the table to get data from.
3.
What is the table called in the conversation?
orders
customers
sales
products
Explanation:
John asks if the table is called ‘sales,’ and Sarah confirms that it is.
4.
How does the WHERE clause filter the data?
It shows only customer names
It shows only big sales
It shows only recent sales
It shows only sales from one table
Explanation:
Sarah says the WHERE clause filters the data to show only big sales.
5.
How are big sales defined in the conversation?
Sales less than 1000 dollars
Sales greater than 100 dollars
Sales equal to 1000 dollars
Sales greater than 1000 dollars
Explanation:
Sarah defines big sales as sales greater than 1000 dollars.
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