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Working with Rollups and Cubes in PostgreSQL | SQL Basics 

Job Ready Programmer
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This video is from the course "Master SQL for Data Science"
In this lesson, you'll learn more about working with Rollups and Cubes in PostgreSQL.
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➡️ About the course: Master SQL for Data Science
This course will turn you into a SQL query wizard. You'll learn the skills you need to extract critical insight from data sitting in a database. There are over 100 puzzles scattered throughout the course with in-depth solutions providing plenty of opportunity for you to practice. After completing the course and all of it's assignments, I promise you, you'll never be afraid to look at a large SQL query again.
Just like my other courses, I follow the no-student-left behind principle; which means that I start from the very basics. You do not need any prerequisites to take this course. We move step by step into more advanced topics as we delve into the world of advanced querying techniques using subqueries, aggregations, joins, rollups and cubes, window functions, transposing & ranking data and using conditional expressions in very interesting ways.
➡️ Below are some of the topics you'll learn:
- What is a Database, Installing Postgres, Creating Tables
- SELECT Statement, WHERE Clause, AND & OR
- Filtering Operators, ORDER BY, LIMIT, DISTINCT
- Renaming Columns, Functions, GROUP BY & HAVING Clauses
- Aggregation Queries, Subqueries, CASE Clause
- Correlated Subqueries,
- Table Joins, INNER and OUTER Joins,
- UNION, UNION ALL and EXCEPT Clauses
- Window Functions for Analytics
+ over 100 puzzles distributed throughout the course
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7 сен 2024

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Комментарии : 74   
@MonteFisto100
@MonteFisto100 2 года назад
Finally understood it, there's so many bad and overcomplicated explainations out there, but this one is really damn good. Thank you.
@nupurgautam1
@nupurgautam1 4 года назад
Thanks for sharing this video, it's just the amount of details I needed. Not sure who gave those 3 dislikes, ignore them...
@matteomarinelli3752
@matteomarinelli3752 4 года назад
Thank you very much! You were the only one I was able to fully understand, you saved my day ahahah :)
@afsananasrin4700
@afsananasrin4700 Месяц назад
Perfectly explained. Thanks for making me understand the concepts clearly.
@Jobreadyprogrammer
@Jobreadyprogrammer Месяц назад
Great to hear!
@kiararicketts2971
@kiararicketts2971 3 месяца назад
Great and simple explanation, thank you!!
@Jobreadyprogrammer
@Jobreadyprogrammer Месяц назад
Welcome!
@fatenaljabaly3911
@fatenaljabaly3911 2 года назад
Thank you so much! You really helped me understand the difference between the two.
@nalinikantadash8669
@nalinikantadash8669 День назад
Great explanation.Thanks a lot.
@aqsachappalwala4363
@aqsachappalwala4363 10 месяцев назад
best explanation ever .Thank you
@user-ko4uv6fg8w
@user-ko4uv6fg8w 2 года назад
Thanks a lot! I didnt find appropriate information on russian resourses and decided to visit your channel. This video make cube, rollup and groupping sets more clear for me. So keep on
@akwamfoneventus6124
@akwamfoneventus6124 6 месяцев назад
This explained it a lot better than my course videos -- some people just teach better without efforts. thank you
@acleahcim
@acleahcim 6 месяцев назад
Amazing video. Helped me with one of my assignments. Thank you for creating an easy to understand video with real examples.
@adamsleuis7794
@adamsleuis7794 10 месяцев назад
Man, I love your explanation. You deserve a 👍
@Advanced_Learner
@Advanced_Learner 4 месяца назад
many thanks for making it so simple to understand
@ukaszkiepas57
@ukaszkiepas57 2 года назад
AWESOME !!! FINALLY UNDERSTOOD :)
@angelopaligutan1665
@angelopaligutan1665 2 года назад
Thank you for a concise yet knowledge-packed video! It helped me a lot
@sravanialluri5756
@sravanialluri5756 6 месяцев назад
Best Explanation, Thank you so much
@hiraethneko
@hiraethneko Год назад
Thanks so much for this!
@ranjithparuchuri6463
@ranjithparuchuri6463 2 года назад
thanks for making this video of rollup and cude.
@samyboulos4642
@samyboulos4642 2 года назад
I love the way you explained it.
@satyendrasingh3805
@satyendrasingh3805 3 года назад
one video cleared all the questions that I had in my mind, Great work!
@PunjabiKush
@PunjabiKush 2 года назад
Thanks a lot man. You taught me more then my teacher did in this video. She skimmed over this subject within 3-5 mins at the end of class and I know this will be on the midterm. I find it very stupid for someone to teach us but not teach us if you get what I mean. Nonetheless I'm studying up and hoping I will pass the test with an above than average grade. Thanks.
@jaybee2402
@jaybee2402 2 года назад
She possibly taught you a far bigger lesson - women aren't excited by technology, mechanics etc, and therefore don't understand them.
@lenaso4555
@lenaso4555 2 года назад
Thank you very much for explaining the topic so easily!!
@mahdihabibi1875
@mahdihabibi1875 Год назад
Great video. Thanks man 🙏
@alexbarasa3816
@alexbarasa3816 3 года назад
excellent explanation sir. THank you so much for this. Straightforward and educative.
@kelvinojeda8222
@kelvinojeda8222 Год назад
Excellent video.
@Doshvari
@Doshvari 4 года назад
Thank you , that was very good
@Pichler96
@Pichler96 9 месяцев назад
very helpful! Thank you :)
@iaroslavd.916
@iaroslavd.916 2 месяца назад
Nicely explained, very clear😊
@Jobreadyprogrammer
@Jobreadyprogrammer Месяц назад
Thank you 🙂
@demetridoes
@demetridoes 2 года назад
Amazing video! So much better than my university lecturer. Made so simple to understand
@Davlet
@Davlet Год назад
at last someone explained it clearly)
@ASWood95
@ASWood95 Год назад
Well explained thank you very much, really appreciate it!
@kamilyaka3406
@kamilyaka3406 Год назад
Very good explanation, thank you.
@joelcampos3073
@joelcampos3073 Год назад
Very interesting and very well explained!!!
@paulfunigga
@paulfunigga 2 месяца назад
Bro, this is very good, thank you for enlightening me!
@Jobreadyprogrammer
@Jobreadyprogrammer Месяц назад
My pleasure!
@NirajPRoxx
@NirajPRoxx 6 лет назад
Thank you so much, that was very detailed explanation. Got very confused when my teacher explained it.
@saki23_220
@saki23_220 3 месяца назад
Perfect
@karimchennoufi698
@karimchennoufi698 3 года назад
thnx for sharing this good video !! it helps a lot for my exam preparation
@estleexin7584
@estleexin7584 Год назад
very nice explaination
@buuqmarabo2778
@buuqmarabo2778 5 лет назад
u taught me a lot through all your vids, thank!
@schaumaul
@schaumaul 3 года назад
this guy is a legend
@nv9946
@nv9946 3 года назад
Thanks for sharing this video. Very well explained.
@hydronicrocker
@hydronicrocker 6 лет назад
With GROUP BY GROUPING SETS, why does the () value at the end show first in the output when its the last item in the query?
@dorcasogute4192
@dorcasogute4192 5 лет назад
Very effective!!!
@Citrinestones
@Citrinestones 6 месяцев назад
LIFESAVER!!!
@ramnaresh4582
@ramnaresh4582 6 лет назад
Really very awesome and useful to me . Thank you.
@ngocmainguyen521
@ngocmainguyen521 3 года назад
Thank you so much!
@aarontan5748
@aarontan5748 2 года назад
Thank you!
@bayerok1582
@bayerok1582 2 года назад
Thank you so much!!!
@oliviermesseumeni9623
@oliviermesseumeni9623 4 года назад
You are the best thank you so much sir!
@suhas3785
@suhas3785 3 года назад
Thanks God bless you.....
@hoangphucle9347
@hoangphucle9347 3 года назад
very useful. tks a lot
@saikatde6343
@saikatde6343 Год назад
This is awesome. :)
@jordan142495
@jordan142495 2 года назад
Thanks 😀
@pankajkharade6936
@pankajkharade6936 3 года назад
Excellent
@montaserfadel7327
@montaserfadel7327 10 месяцев назад
impressiv
@user-kg1cg4sr2x
@user-kg1cg4sr2x Год назад
Cube function is not available in google bigquery. is their any other alternative ?
@oceanheadted
@oceanheadted 4 года назад
Does it work when there is no hierarchy between the dimension column? E.g. if you were analysing shoe sales data, by size, colour and style...
@akrammezrag4394
@akrammezrag4394 3 года назад
thanks bro.
@mohaiminulhasan252
@mohaiminulhasan252 3 года назад
People like you turn into Data Engineers, and people who can't get that job are assigned to teach students like me. There has to be a fix for this.
@twinklegarg1413
@twinklegarg1413 3 года назад
Sir group by ek se jyada columns ke base pe perform to skit hai
@faranakyakhdani185
@faranakyakhdani185 2 года назад
amazing
@angmathew4377
@angmathew4377 3 года назад
how do we know how many rows we will get from group by cube?
@vedant_10-09
@vedant_10-09 11 месяцев назад
#1064 limit 0,25 error @groupby grouping sets
@mozzjonas9292
@mozzjonas9292 3 года назад
Where is link for script
@medjl6083
@medjl6083 3 года назад
what is this the name of software.
@omkarpatil9886
@omkarpatil9886 2 года назад
Postgrass sql
@nileshthorat2403
@nileshthorat2403 3 года назад
Present sir
@meriemtrabelsi5517
@meriemtrabelsi5517 2 года назад
@mossen6225
@mossen6225 10 месяцев назад
If this can make someones life easy 😃 CREATE TABLE sales ( continent varchar(20), country varchar(20), city varchar(20), units_sold integer ); Insert INTO sales VALUES ('North America', 'Canada', 'Toronto', 10000); Insert INTO sales VALUES ('North America', 'Canada', 'Montreal', 5000); Insert INTO sales VALUES ('North America', 'Canada', 'Vancouver', 15000); Insert INTO sales VALUES ('Asia', 'China', 'Hong Kong', 7000); Insert INTO sales VALUES ('Asia', 'China', 'Shanghai', 3000); Insert INTO sales VALUES ('Asia', 'China', 'Tokyo', 5000); Insert INTO sales VALUES ('Europ', 'UK', 'London', 6000); Insert INTO sales VALUES ('Europ', 'UK', 'Manchester', 12000); Insert INTO sales VALUES ('Europ', 'France', 'Paris', 5000); select * from sales;
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