Oracle PL SQL interview question | Count(1) vs Count(*) vs Count(column) vs Count(Distinct Column)
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Last Updated: September 29, 2026
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Learn more about PlanetScale at planetscale.com/youtube. —————————————————— 00:00 Intro 01:04 ... NULLs are interesting values. While they fill an important need in the database, it's not always intuitive how different an introduction to a numbering system that's objectively better than seximal - external links - footnotes, script, other readables: ... In this step-by-step video tutorial, you will learn some more advanced In this video, learn how to implement the 30DaySQLQueryChallenge is a series of 30 videos covering 30 In this tutorial we look at the