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May 10, 2017 · Can I do a max(count(*)) in SQL? Yes , you can achieve that by nesting an aggregate function in a window function : SELECT m.yr , count(*) AS movie_count , max(count(*)) OVER () AS max_ct FROM casting c JOIN movie m ON c.movieid = m.id WHERE c.actorid = (SELECT id FROM actor WHERE name = 'John Travolta') GROUP BY m.yr ORDER BY count(*) DESC;
Apr 20, 2024 · In this page we are discussing the usage of SQL COUNT() along with the SQL MAX(). The sql having also be used with sql max function.
Jun 25, 2022 · In this article, I’ll show you the most essential SQL functions that you will use for calculating aggregates — such as SUM, AVG, COUNT, MAX, MIN — in a data set. Then I’ll show you how these work with the GROUP BY clause, so you will be able to use SQL for segmentation projects.
SELECT MAX(count) FROM (SELECT COUNT(docname) FROM doctor GROUP BY docname) a; This is all the doctors and how many patients they have: SELECT docname, COUNT(docname) FROM doctor GROUP BY name;
Sep 30, 2013 · I'd try with a ORDER BY max DESC LIMIT 1, where maximum is the count (*) field. Something like: SELECT "name", count(*) maximum FROM "users". INNER JOIN "microposts" ON "microposts"."user_id" = "users"."id". GROUP BY users.id.
Jan 26, 2024 · COUNT Function. The COUNT function returns the number of rows matching a certain criteria. Here’s an example that counts all the rows in the table: SELECT COUNT(*) as total_rows FROM sales; Output: +-----+ | total_rows | +-----+ | 6 | +-----+ The table contains a total of 6 rows.
Oct 21, 2021 · The COUNT() function is one of the most useful aggregate functions in SQL. Counting the total number of orders by a customer in the last few days, the number of unique visitors who bought a museum ticket, or the number of employees in a department, can all be done using the COUNT() function.
