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We have following relationmovie_streaming(id,date,movie,director,number_of_streams)1) Find the total number of streams by date.2) Find the total number of streams by date and director.3) Find the total number of streams by date and director. Show only dates with a totalnumber of streams above 740

Question

We have following relationmovie_streaming(id,date,movie,director,number_of_streams)1) Find the total number of streams by date.2) Find the total number of streams by date and director.3) Find the total number of streams by date and director. Show only dates with a totalnumber of streams above 740

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Solution

  1. To find the total number of streams by date, you can use the SQL GROUP BY clause. Here is the SQL query:
SELECT date, SUM(number_of_streams) 
FROM movie_streaming 
GROUP BY date;
  1. To find the total number of streams by date and director, you can extend the previous query to include the director in the GROUP BY clause:
SELECT date, director, SUM(number_of_streams) 
FROM movie_streaming 
GROUP BY date, director;
  1. To find the total number of streams by date and director, but only show dates with a total number of streams above 740, you can add a HAVING clause to the previous query:
SELECT date, director, SUM(number_of_streams) 
FROM movie_streaming 
GROUP BY date, director
HAVING SUM(number_of_streams) > 740;

The HAVING clause is used in SQL to filter the results of a GROUP BY clause, similar to how the WHERE clause is used to filter the results of a SELECT statement.

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