SQL Internals | Indexes in SQL | Order of Execution in SQL | Advanced SQL | SQL Scenario based

SQL Internals | Indexes in SQL | Order of Execution in SQL | Advanced SQL | SQL Scenario based

Sumit Mittal

2 года назад

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Vinod Kopuri
Vinod Kopuri - 31.10.2023 07:39

could you please make video series for pl/sql developer role sir

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Rohan Gupta
Rohan Gupta - 05.10.2023 05:51

By far the best Sql series available

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Suraj Kumar
Suraj Kumar - 04.09.2023 18:06

Sir How to practice SQL, After watching your tutorials. I mean there is no dataset in any SQL tutorial. Please suggest

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Learn with Sebastian Srikanth
Learn with Sebastian Srikanth - 28.07.2023 15:26

Sumit Sir, Thank you so much for this awesome video, I request you to please tell us how can we install sql in VS code, thank you .

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Padma
Padma - 06.03.2023 08:22

Hi sir
I have been watching your video, as a beginner I would say it's a great explanation.
One request from my end, pls make a video on the difference among the views, stored procedures and functions along with the triggers in detail in SQL.
Thanks.

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Wisdom Vlog
Wisdom Vlog - 25.01.2023 00:18

Looking forward for more videos on SQL.

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E G
E G - 14.12.2022 05:46

When the count* and select * query is executed in the beginning the number of rows keeps changing in the bar at the bottom near the console box.. what is that and why did that happen?

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E G
E G - 14.12.2022 05:44

Thank you for these sessions. You explain the concepts so well

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sandeep kumar
sandeep kumar - 15.11.2022 03:33

As you mentioned you’ll do this in series of videos , can you comment the following videos, also you mentioned you did a video on optimising queries please provide that link as well

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sushmak sushma
sushmak sushma - 29.10.2022 22:19

Thank you so much sumit sir for teaching sql so clearly. Can you please make a vedio on window functions sir

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Kaustubh Dwivedi
Kaustubh Dwivedi - 09.10.2022 14:56

PERFECT 11/10
Thank You !

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Chaytanya
Chaytanya - 23.09.2022 07:40

Sweet. Thank you!

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Rameshkumar S
Rameshkumar S - 05.09.2022 19:46

Sir this video concept is not pretty clear

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Nallaperumal Thanthondri
Nallaperumal Thanthondri - 03.09.2022 05:08

Thanks a lot sir. It was very useful.

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karthik Balasubramanya
karthik Balasubramanya - 25.08.2022 14:30

This is the best explanation so far than other tutorial ever...

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Ashwini M
Ashwini M - 25.08.2022 10:38

Great explanation sir

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Aditya Sharma
Aditya Sharma - 22.08.2022 22:11

From where we get this huge dataset??

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Amit Singh
Amit Singh - 26.07.2022 17:01

Thank you sumit sir always faced problem in understanding the order of execution. Your explanation has cleared out everything.

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Amit Singh
Amit Singh - 26.07.2022 16:59

I guess for the top-N search it might have used max-heap data structure whose complexity will be O(total_no_records*log(N)) which is faster than sorting O(total_no_records*log(total_no_records)).

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Sahil Setia
Sahil Setia - 23.07.2022 21:05

Very well explained. Good job done. Keep it up.

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Hasan Mougharbel
Hasan Mougharbel - 21.07.2022 20:56

God bless your great efforts in this channel.
I have a simple question to ask as a newbie sql learner.
Could i manage to channel or extract all sql data generated from an accounting program (based on sql) to our new sql server.
The reason that we are bounded with the graphical interface of this accounting software as we cant
come up with any solutions regarding analytics and automation, unless we can tailor and rearrange this sql database based to our specific needs.
Thanks for helping me

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harshit aggarwal
harshit aggarwal - 20.07.2022 22:54

@Sumit Sir Thanks for the video. I have just one doubt in this when we talk about composite clustered index , that we have multiple column in that E.g. (Order_id,cust_id). So firstly it will sort on basis of order_id and if there is any tie then on cust_id. But how will there be clash as this is primary key and we cannot have duplicate value in that. So what is the actual benefit of composite clustered index

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shashank emani
shashank emani - 18.07.2022 21:52

Amazing sir thank you!

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Sumit Barde
Sumit Barde - 18.07.2022 11:47

Sumit Sir Thank you for this video. I am using SQL from 2-3 years. I can write hard and complex queries, but the things mentioned in this video are so in depth that i didnt know anything such kind exists. Overall I can say optimizations are your thing.

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Sravan Naramsetti
Sravan Naramsetti - 15.07.2022 15:34

This is a very nice demo n session. Could you share your vscode setup that was used for data browsing here? Thanks a lot in advance

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pramod
pramod - 10.07.2022 22:36

great

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Saurabh Rajput
Saurabh Rajput - 10.07.2022 14:45

Sir, please upload the data set for the practice query

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Tridip Das
Tridip Das - 10.07.2022 09:07

Hi Summit , correct me if I am wrong. You mentioned for non-clustered index there will be a separate table. But what I believe is that for whatever indexing it is,a separate table will get created. Also why not Primary Index is getting created when we use primary key?

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Ritik Dagar
Ritik Dagar - 09.07.2022 20:26

Thank you Sumit sir for the wonderful explanation... Can you please videos on more topics like stored func/ procs, Triggers, Pivot.

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Mujtaba Noori
Mujtaba Noori - 09.07.2022 09:59

Wow! Amazing Video.. you have made me very clear about it Thank you. Really Amazing

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priyanka sengar
priyanka sengar - 08.07.2022 14:44

Can anyone tell me in which video Sumit sir shared how to install MySQL please?

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Nasima Khatun
Nasima Khatun - 08.07.2022 08:54

Filter befor join or after join.. in case of concat and othe scenario.. what is better??

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Nasima Khatun
Nasima Khatun - 07.07.2022 22:31

What is binary search

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Ashwini Singh
Ashwini Singh - 07.07.2022 14:13

is machine learning required to join your big data course ? or ML is even required to become big data developer

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shwetha
shwetha - 06.07.2022 10:57

This is really good ! Please continue on reducing the cost and optimizing. It always depends on data and other variable but a baseline would be great🙂

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Varun Kumar Yella
Varun Kumar Yella - 05.07.2022 19:17

Sumit, this is great. I followed all your sql sessions and look forward for many more. I have been working on sql for 6 years now . This is amazing playlist found so far. only one suggestion I have is when you write a sql query , can you please write in multiple lines instead of one line ( Eg in 27 min 19 sec of this video). I think that is recommended sql format. Thanks.

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Manan Yadav
Manan Yadav - 05.07.2022 17:59

Amazing it is...never did i realize the internals of database is so intresting

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Anand Sharma
Anand Sharma - 05.07.2022 17:15

Which env or IDE is used here for querying

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mallikarjun patil
mallikarjun patil - 05.07.2022 16:00

Thanks for the beautiful in-depth explanation, this makes things simple

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Arslan Afzal Butt
Arslan Afzal Butt - 05.07.2022 12:43

I never understood why I can't use the alias of aggregates in the where / having clause. To avoid the error I used sub queries/ ctes so that I can use alias in where and having clauses. With this video, I have finally understood why alias cannot be used in the where and having clause but can be used in the order by clause.

Thank you for the great content.

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Njoy
Njoy - 05.07.2022 10:33

This is really powerful session

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Dheeraj Lakkakula
Dheeraj Lakkakula - 05.07.2022 08:23

Thank you for indepth explanation sir. Can you please make a video on date functions in SQL , it is quite confusing to use them in queries.please consider this request sir .Thank you sir

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Sushanth Varendrababu
Sushanth Varendrababu - 05.07.2022 06:59

In-depth knowledge gained

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Atishay Jain
Atishay Jain - 04.07.2022 23:14

Finally I understood the order of execution😅. Awesome content.

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