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Databases Reporting with SQL Aggregate and Numeric Functions Calculating the Minimum and Maximum Values

Satyam garhewal
Satyam garhewal
326 Points
Posted by Satyam garhewal
Satyam garhewal
326 Points

Why my query is not working, can you please help me out?

I have selected the rating column and taken out the average similar in the last query and it worked in the last query but here, I am doing everything according to the tutorial but still I am not getting the solution.

2 Answers

Mustafa BaลŸaran
Mustafa BaลŸaran
28,046 Points
Mustafa BaลŸaran
Mustafa BaลŸaran
28,046 Points

Hi Satyam,

You are asked to calculate the min and max values of rating column from the reviews table with movie_id = 6 and alias these two as star_min and star_max , respectively.

Please check the column you have selected, make use of MIN() and MAX() functions, use the aliases mentioned and select the correct movie_id in your WHERE clause. Then, it should be fine.

SELECT MIN(rating) AS star_min, MAX(rating) AS star_max FROM reviews WHERE movie_id = 6;
Satyam garhewal
Satyam garhewal
326 Points
Satyam garhewal
Satyam garhewal
326 Points

Thank you, Mustafa, now I get what I was doing wrong, I was taking out the average of rating that the question wasn't even asking for. The Query you gave is correct- Select MIN (rating) AS star_min, MAX (rating) AS star_max from reviews where movie_id = 6;