SQL Window Functions | Clearly Explained | PARTITION BY, ORDER BY, ROW_NUMBER, RANK, DENSE_RANK

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SQL Pocket Guide author Alice Zhao breaks down each part of a window function, step-by-step.

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⏱️ Timestamps ⏱️
00:00 Intro
0:09: View the table
0:28: ORDER BY
1:18: Window function with ROW_NUMBER
1:40: OVER
2:36: Breaking down the window function
3:28: ROW_NUMBER vs RANK vs DENSE_RANK
5:13: PARTITION BY
6:52: Window function in a subquery

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Комментарии
Автор

Hands down the most straightforward explanation of window functions!

MrDeeraf
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Best Teacher I've seen on YouTube hands down

kingsleyarisah
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As a fellow educator, I know great quality when I see it. Great job, Alice! You explained some very difficult concepts very clearly and succinctly. Well done!

jta
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Just paused the video to say that you are just AMAZING. Thank you for such an eloquent explanation. God Bless you!

humzakhan
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Always was difficult to me understand these concepts about Windows functions specifically but this video summarize a lot of videos with practical examples making easy to apply with confidence. Thank you Alice!

rodrigochavez
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Straightforward and to the point! Thank you! I used to beat my head against the computer learning these years ago.

RoommateWiLLE
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Great video on subqueries and window functions! @Alice Zhao, you have a knack for making complex concepts understandable. I especially appreciated how you broke down the window function. Looking forward to more content in this new format! #MavenAnalytics #SQL

carlosserra
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The best explanation I've ever seen

Fin
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Saving this video!! Fantastic explanation👏👏

jphd
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Thank you for your videos, very insightful and easy to understand, straightforward without unnecessary talking.

sayowhatisuupmynaiba
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The best Window Function, Partition By and Row Number,
Tried multiple videos and still couldn't understand properly, this video explains the concepts perfectly.
Thank you so much @AliceZhao
@MavenAnalytics 🙌🏻

tauseefhashmi
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If my wife would ever learned SQL she would love this dataset ;)

jakubosiecki
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Wow Alice. You have brilliantly explained window functions. I hope to see more content like this. Cheers

shirinhashim
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Thanks so much for this, finally understood the concept.

sambeetpanda
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Brava brava brava Alice! Very well done, clear and concise... also very useful and interesting

gpisty
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Finally understand window functions! Great tutorial.

edieshaw
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GIRL THANK YOU better than this damn pluralsight course

omilkhouseo
Автор

Hello Sir,

Thank you for your useful videos on dax.

Sir, when to combine ALL function with Calculate + Filter Function together in Dax ?

Could you please make a video of it in detail soon 🙏

gurvindersingharora