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

[@sumitmittal07]

Checkout the Big Data course details here: trendytech.in/?referrer=youtube_sqladv2

[@erikf7560]

link is not working says proxy or vpn detected

[@abhishekanand4154]

do you have resources on SQL optimization and in general Big data optimization techniques, for interview preparation.?

[@arunsundar3739]

have been using SQL queries for so many years, however not knowing or caring much about what is happening behind the scenes, now this video is making knowing the internals fun & interesting, thank you very much sir :)

[@Sandip_Patle]

🔰This is the best series of learning SQL on KZbin I've ever seen. The way you teach here is quite similar to your big data program which is really really commendable. As you've mentioned, before going into a big data program, first we need to learn SQL, at least the basics of it. And I can say, this series of SQL is a perfect recipe to have a good understanding of a big data program. You're really putting your hard work into it. Thank you very much and please keep bringing this valuable content likewise. 🙏

[@sumitmittal07]

thank you very much Sandip.. will keep adding more interesting content.

[@sumitbarde3677]

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.

[@rohangupta4290]

By far the best Sql series available

[@sankuM]

Really very helpful @Trendytech Insights!! 59:26, does it mean that engine has kind of stats on the data already where it knows about the distribution of orders in certain ranges. (e.g. count >10 , count>100, etc.) in order to decide the execution order of operation??? 🤔🤔🤔 This one is going to help lot of data geeks to get the internals sorted! 😃 Thank you so much!!!

[@karthikbalasubramanya]

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

[@arsl550]

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.

[@sumitmittal07]

thank you very much Arslan :)

[@AmitSingh-ut4wt]

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

[@saiasrithayakkali8984]

Sir, This video is much more helpful compared to all others that are available in KZbin but you mentioned you will do the series of videos for further detailed explanation. Can please release those asap so that it will be helpful for many others like me.

[@jackylalo1]

Thank you, Sumit, this was very helpful.

[@mujtabanoori3736]

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

[@Pbairoju]

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.

[@mananyadav6401]

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

[@sumitmittal07]

I am glad that you liked the video :)

[@wisdom_vlog]

Looking forward for more videos on SQL.

[@kaustubhdwivedi1729]

PERFECT 11/10 Thank You !

[@eg5224]

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

[@varunkumaryella1277]

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.

[@sumitmittal07]

thats a very good suggestion.. will take care of this going forward.

[@krishnakumarkumar5710]

Kudos to Bigdata LORD Sumeet

[@supersetia]

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

[@nallaperumalthanthondri3817]

Thanks a lot sir. It was very useful.

[@sushmaksushma7796]

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

[@mallikarjunpatil7553]

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

[@sumitmittal07]

thank you Mallikarjun

[@atishayjain5321]

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

[@sumitmittal07]

thank you Atishay

[@njoy2075]

This is really powerful session

[@sumitmittal07]

thank you Njoy

[@TrustinData]

Great explanation sir

[@sushanthvarendrababu134]

In-depth knowledge gained

[@chaytanya2293]

Sweet. Thank you!

[@shwetha9617]

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🙂

[@ckumar2407]

kzbin.info/aero/PLDYqU5RH_aX1VSVvjdla9TOKf939UhIDB

[@shashankemani1609]

Amazing sir thank you!

[@sebastiansrikanth]

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 .

[@harshitaggarwal3554]

@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

[@sandeepkumar-ol5lg]

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

[@radha__radha__radha1]

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

[@dheerajlakkakula5983]

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

[@sumitmittal07]

surely will try to make a video on date

[@AmitSingh-ut4wt]

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)).

[@hasanmougharbel8030]

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

[@VinodKopuri-r4k]

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

[@NasimaKhatun-jb7qo]

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

[@eg5224]

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?

[@saurabhrajput7482]

Sir, please upload the data set for the practice query

[@pramod3469]

great

[@sravan1802]

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

[@sravan1802]

What add on or extension in VS Code was used here for the mySQL setup? Please share.

[@ashwinisingh6251]

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

[@AdityaSharma-qx1yz]

From where we get this huge dataset??

[@SurajKumar-lt9us]

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

[@tridipdas5445]

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?

[@sumitmittal07]

for clustered index there is no external thing thats created. when we have a primary key its clustered index and the storage of data in actual table happens in ascending order.

[@tridipdas5445]

@@sumitmittal07 Okay thank you for clearing my doubt.

[@tridipdas5445]

@@sumitmittal07 Okay thank you for clearing my doubt.

[@NasimaKhatun-jb7qo]

What is binary search

[@Iamsutu]

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

[@souvik5560]

You will get a lot of videos on Mysql installation. The concepts he is dealing with are really important and not that well explained in other instructors' videos. Learn and enjoy 👍🏻

[@AnandSharma-kz2bs]

Which env or IDE is used here for querying

[@mananyadav6401]

I think it is vs code

[@sumitmittal07]

Azure Data Studio

[@ckumar2407]

kzbin.info/aero/PLDYqU5RH_aX1VSVvjdla9TOKf939UhIDB

[@digitaltechconnect1318]

Sir this video concept is not pretty clear

[@sailpawar6164]

if someone need notes, here they are drive.google.com/file/d/1J8ULa8yGB90ymbtAp2ysG0gbfOFVyAjj/view?usp=share_link