SQL 3.3 Lesson
7:43
YouTubeData Wrangler
SQL 3.3 Lesson
This lesson teaches students how SQL can summarize large sets of data using aggregate functions like COUNT(), MIN(), MAX(), SUM(), and AVG(). The video explains how these functions take many rows and return a single meaningful value, such as the highest salary, the total population, or the number of cars of a certain type. Students also learn ...
2 months ago
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