Please note the COST column used in this table represents the total cost of purchase hence we do not need to multiple quantity with cost to get the total cost. I designed the dataset with an assumption that COST is the total purchase cost.

@eijazhussainsheikh2637

Жыл бұрын

then it becomes easy...

@gotchihaeyo1825

Жыл бұрын

What if we have to calculate quantity × price first? Does Sum(quantity*price) work?

@chandramoulireddymarthala3721

Жыл бұрын

Yeah your videos are really helping me to understand this course

@maggienalwabwe7288

Жыл бұрын

Hello, please help me reconstruct this using SELECT. The with clause isn’t supported WITH seq(n) AS (SELECT 0 UNION ALL SELECT n + 1 FROM seq WHERE n d(d) AS (SELECT DATEADD(DAY, n, '20210101') FROM seq) SELECT d, COUNT (*) ON a.dogma_registereddate = d OR a.dogma_removeddate IS NULL) WHERE a.dogma_charitynumber != 'SC000036' GROUP BY d ORDER BY d OPTION (MAXRECURSION 0);

@ananda7469

Жыл бұрын

Sir can you please explain why did you give X as alias and also again avg_sales as alias but confused

You're the best resource I have found! I've taken classes on Udemy and everything but it's nothing like this. I graduate from college in December and I'm pursuing a career in Data Analytics. Your videos are definitely going to help me with my upcoming interviews. God bless you brother! You have helped me to understand SQL on a whole another level!

@techTFQ

2 жыл бұрын

I am so glad to hear this bro :) Happy to know my videos have helped you to understand SQL. Thank you for the amazing feedback :)

@akshaykumarsingh9770

2 жыл бұрын

That's correct @ItsReflexes, he is awesome 🙂

@techTFQ

2 жыл бұрын

Thank you once again Akshay 🙏🏼

@LazyPvPing

2 жыл бұрын

UPDATE : I signed a job offer with a great compensation range. In addition, I had 3+ companies to choose from. Hard work does pay off!

@techTFQ

2 жыл бұрын

Congratulations buddy 💐 I am so happy for your success 👌 All the best 👍

alot of people just show how to make the query, what I call "watch me type". You actually teach the how and whys. i learned alot with your channel. thanks

This video on the with clause gave me a solution to a query I have been trying to write for a month. I can't thank you enough. Now the query works as it should and is readable! I had tried various unions, exists, partition statements to isolate some data. It did not work, this did! 😀

Another big advantage is when using CTE's for inserting/updating records in multiple rows (One-to-one, or one-to-mamy), you can use the returned id in the other queries. Mutiple modifications in a single query reduce overall latency from a code perspective. Moreover, a CTE is executed as a transaction, so you won't need to start/commit a transaction in your code.

from zero to super hero with you man, massive thanks to do it easier.

I have been working two and a half years as a Data Management Officer at icddr,b Bangladesh. Now, I am learning SQL to become a data analyst. I found your video classes very useful, effective and eloquently explained. Thanks techTFQ👌.

Such a wonderful explanation. I was always afraid of using WITH clause but after watching this video, I will definitely try to implement the same wherever it's possible. Thanks a lot brother.

@techTFQ

2 жыл бұрын

Glad to hear that buddy

i have never seen someone like you to be that perfect in sql ever. hats off taufiq ,god bless you SIR♥

Greetings from Vancouver :) Big thank you for this video. As a fintec product manager who uses metabase and its wisiwig (scratch for sql), I was limited severely in what I could do (I know some sql but didn't know this). Your video here finally explains how to create variables, I mean, cte or datasets to work with. I'm binge watching your channel now! Cheers and happy new year to you and yours.

You are the best instructor who explains tough things in a very simple way. Appreciate your work..!!!

Awesome. I use with all the time. As a data analyst I write for single use code so I often don’t write very efficiently. Using a with clause to get the initial dataset to just look a little bit more like the target dataset and then using it again until I incrementally achieve the target dataset is pretty much my solution. Almost every time.

thank you so much man i was just blindly copy pasting the cte queries without understanding how it actually works and I am glad to find this channel, bro explained the concept like we explain everything to 1 year old babies

Most underrated KZread channel i have seen, you have rocked all the sql videos man

I had to go through this 3x to really understand the with clause concept. Thanks a whole bunch 🎉.

Learning from you each day, my friend. Great content, not only in this video but other SQL videos as well. Keep up the good work!

Bro You're an Amazing Teacher. Nobody ever could make learning SQL so simple!. Thank You!

Great Teacher.i never seen a person who explain complex stuff in a easy and simple way.

This is the best video on CTE. Thanks a lot for explaining in a simple way. 🙌

Thank you so much. God is so good as you are a blessing with your lessons.

I use CTE in almost every production query I write. After the first sub query, I always format the alias name with leading comma as , as ( Select …. ) , as ( -- The reason for this is when revisiting the query a year later, I just need to comment out any alias name row and highlight from top to and including the query with the alias commented out, and examine any intermediate results. Excellent technique when a business person wants to see how something is being generated. Use white space above and below these lines. My tip? Format for functionality, use leading commas.

Really useful video. Spared me a lot of web research and let me understand the principle that enabled me to execute at a way more complex query.

Thanks for the generous sharing! Your explanation makes it much easier to grasp than the one i took on Udemy.

I have watched many SQL videos and I hardly comment. Thank you and appreciate your videos, I found them very beneficial and what makes real difference in your videos is you explain the rational of why we need to use and its pros and cons. They have unexpectedly answered some of the question that I didn't even exist in my mind. Keep up and great work!

@techTFQ

2 жыл бұрын

Thank you so very much for the amazing feedback :) I am so glad you took the time to comment and so glad you like my contents 🙏

what i felt about the video ? your a god dude ❤, thats what i felt

I am obsessed with your channel, I have been working with SQL for so long and I used to run away from window functions but you explain it so nice and clear. I learned by working on it so was never clear on concepts but thank god for your Chanel !

@techTFQ

2 жыл бұрын

Thank you Kamaljeet 🙏🏼 I am glad to read this comment and happy to know my contents have helped you

Really Helpful and Very Good to understand SQL especially for Beginners

Damn, best and underrated channel I have seen till now. Crisp, to the point and just useful information...

@techTFQ

2 жыл бұрын

Thank you Sagar once again for all the support and always liking my content 🙏🏼 Am so glad, I am able to add some value through these videos 🙂

Im grateful to you beyond words could express Mr.Thoufiq. Big Salute to you

THIS IS THE WAY ONE SHOULD TEACH... TOO GOOD

@techTFQ

2 жыл бұрын

Thank you very much Vikram 🙏🏼 Appreciate your feedback ☺️

What an amazing explaination..it really helps me to understand SQL well ☺Thank you so much sir🌺🌸

GREAT EXPLANATION AND IS BETTER THAN OTHER CHARGEABLE INSTITUTIONS

You're the best SQL instructor in KZread. Hoping for the best and keep up this mighty work.

I was getting hopeless with my sql learning. This channel gave me a new direction. This is the first video that I watched. Now I am going to practice from your sql practice playlist.

@techTFQ

2 жыл бұрын

Awesome Sahil 👌 Very happy to read this comment.. I am glad this helped you

its very useful sir, explanation are very clear and understanging easily

Was always feeling quite hard to get hold of this With clause. Thanks a lot for making it so easy to understand✌️ As usual loved the way you explained the whole thing🙌🏻

@techTFQ

2 жыл бұрын

Thank you bro ❤️❤️❤️

Thank you. You explained very clearly and also in detail at the same time. Glad I found this video.

Great Work is simplifying complex things simpler. Thank You for doing that. Best wishes...

@techTFQ

2 жыл бұрын

Your welcome 🙏🏼

Best video i have sen for this concept!

believe me.. Now i can able to solve complex queries after following techTFQ. i know still longway to go but i have confidence to solve any kind of questions

@techTFQ

Жыл бұрын

Very happy to know that ☺️ Thank you 🙏🏼

Undoubtly your course is the best resource not only in youtube but also whatever available in internet that to be free.

CLEAR AND SIMPLE. LOVELY EXPLANATION

YOU ARE THE BEST TUTOR.

Yea. Best I have watched so far. Thanks for how u convey this information. U crafted!

you are a gem sir, as soon as I crack my data analyst, I am gonna donate good part of my first month salary to channel, #gratitude

@techTFQ

2 жыл бұрын

Thank you Saurav :) Appreciate your generosity. And wishing you all the best

What I mainly like about you is, the project based explanations you provide. Its now making alot of sense to me after watching your videos. Thanks. Please more and more of project based explanation of SQL.

@techTFQ

2 жыл бұрын

Thank you for the feedback 🙏🏼 So glad to read this ☺️

Thanks a bunch for putting this out - this was super duper helpful!

Thank you for this video, I was using CTE's only for deleting duplicates and I was so confused when I should use these and what they are for. You explained it so well. I'm glad I finally understand CTE.

@techTFQ

Жыл бұрын

glad this helped

Excellent.. using cte also get rid of temp tables or reference tables..also bear in mind that memory should be enough to hold data .. since it's being referenced later.

Simple but elegant explanation about WITH clause, thanks for creating these videos and sharing your knowledge .....

@techTFQ

2 жыл бұрын

Glad you liked it 🙏🏼

It's great to start the SQL learning career with your video's.

@techTFQ

2 жыл бұрын

Thank you Prashanth.. glad you think so

You are the best no one explained with clause better than you.

@techTFQ

Жыл бұрын

thank you so much :)

Just like the way you explain the concept so that it is more easier to understand. Thanks again for your video. I have learnt a lot.

Thanks for explaining the concepts from a very basic. It really helped me to understand easily.

Randomly I was scrolling KZread ... saw your channel and saw this video it's amazing! the way of explanation is perfect..glad to see your videos Macha Tqu and do more videos on dynamic queries, SP debugging 😊

you explained in very simple way so it is best video so far I ever seen on SQL.

Best video!!!! 100x better than all univ professors combined! Such a clear cut explanation!

@techTFQ

2 жыл бұрын

Glad you liked it

Really an excellent way to explain with clause. Thank you for this!

GRATITUDE for all the videos in sql complex queries.

great lecture..keep posting more videos ..congrats

your videos are super. thank you so much. As you're voice is fast, it is bit difficult to make a note of them at the same time. I had to pass the video multiple times and make a note of them, but instead of all that, it would be much better if you could please show a slide in the video itself about the adv/disadv or differences if there are any, so that we can directly make a note of them as per your wordings in the slide. Once again, thank you so much and don't stop making more videos. You're on an online guru for us ...🙏

@techTFQ

2 жыл бұрын

Thank you Harish for your kind feedback 🙏🏼 I am glad this helped you and I’ll try to get slower as much as possible

Everytime I watch your videos I get tempted to subscribe the channel, later making me feel sad that am already subscribed. Is there anyone here who feel crazy like this ?

@techTFQ

2 жыл бұрын

haha awesome Nibin :D Thanks a lot

Nice explanation of CTEs!

Great Lecture Sir

I love the way you are explaining the complex things...please make some more videos on advance sql

5 minutes in and I already understand more than any other video on this topic. Thanks man

@techTFQ

2 жыл бұрын

Awesome.. glad this helped

sir u are great,ur learning procedure awasome

Hi @techTFQ you are a very good teacher. your videos are best for learning SQL. Please make a video on coalesce and is null command also.

super bro, got clear idea on CTE and its applications, Thanks a ton !!

Thank you sir, I understand common things, but I need more practice to improve the information that I got from this video, It's complex for me. Very useful video.

Thank you for your brilliant examples and explanations, you are doing an excellent job.

@techTFQ

2 жыл бұрын

Thank you so much 🙏🏼 Happy to know this helped you

Simple and clear explanation for usage of CTE. Thanks

@techTFQ

2 жыл бұрын

Glad you liked it

This is soooo helpful!! Thank you Thoufiq, you are a God sent :D

Helps a Lot!!! thanks from Brazil

Your SQL YT videos has helped me a lot, thank you

Thanks for the video, needed to understand this for my job. Very well explained and the way you give the lecture is excellent!

@techTFQ

2 жыл бұрын

Thank you so much 🙏🏼 Glad you liked it..

Sir plzzz bring more videos like this , your voice has tone that helped me lot . Thank you so much

@techTFQ

2 жыл бұрын

Thank you Harcharan 🙏🏼 Glad to know my voice is clear enough ☺️☺️ Will make more videos

this is interesting topic , i enjoyed the video while practicing it on my own as well. (and yours ears are like PK😅😁)

What an explanation 🔥 This is the most simplest explanation I have ever seen in my career. Thank You so much ❤️ Please make a video on table indexes!

@techTFQ

2 жыл бұрын

Thank you Akash 🙏🏼 Glad you liked it .. Will consider a video on index in the near future

@govindmall4731

Жыл бұрын

@@techTFQ yes please...

Never used it. Fantastic proof of concept. Will be using it as a cursor in future.

@techTFQ

2 жыл бұрын

Thank you Sudhanshu 🙏🏼 Yes it’s a very very useful concept

thanx techTFQ for your simplicity.

@techTFQ

2 жыл бұрын

Thank you bro 🙏🏼 Glad you liked it 🙂

Bro your videos are very helpful. Keep sharing knowledge.. Thanks

@techTFQ

2 жыл бұрын

Thank you Shafique 🙏🏼 Will do my best ..

Your videos are next level. I couldn't find this quality even in paid courses on udemy

@techTFQ

2 жыл бұрын

Thank you very much Anas 🙏🏼

very informative 👏 Thankyou for your effort behind this video.

Explain everything so clearly with all of the explanation that helped a lot to understand the concepts Better. Thanks a lot for such valuable videos.👍

@techTFQ

2 жыл бұрын

Your welcome Asma Glad this helped

Great Job Bro... Heart fully Appreciating your Knowledge...

@techTFQ

2 жыл бұрын

Thank you 🙏🏼

You're a saviour ❤🙂 Please make more SQL videos on how to solve and write complex queries

@techTFQ

2 жыл бұрын

Thank you Ramya! Will do and glad this helped..

Thank you for providing the helpful sql video.

Please continue doing this ! Great tutorial Thank you so much !!

@techTFQ

2 жыл бұрын

Your welcome Ashish Glad this helped

ThankYou Sir , Your tecahing skills are awesome.

By far the best material I ever met. Thank you!

@techTFQ

2 жыл бұрын

Thank you Coma. glad you liked it :)

Best One to show how really CTEs work and the difference between them and subqueries. Nice Job

@techTFQ

6 ай бұрын

thank you

All your contents are straight to the point. No nonsense . I checked your blog it was very useful. Thanks keep up the good work

@techTFQ

2 жыл бұрын

Thank you Manoj 🙏🏼 It’s so nice to see such positive feedback 🙂 So glad you liked the content 🙂

Thank you so much for providing such a fabulous content.. I am totally obsessed with your channel.

@techTFQ

2 жыл бұрын

Thank you Surbhi 🙏🏼 I am glad you liked it

So clear. Thanks for sharing. This was very useful.

With query has been clearly explained, thanks for this video

@techTFQ

2 жыл бұрын

Glad you liked it

Thank you very much for the explanation, everything was very clear, I have seen it before, but it was very interesting watching this video and getting a detailed example to get a better understanding.

@techTFQ

Жыл бұрын

Glad it was helpful!

Please also make videos for DBMS and Query Optimization. I love your content bro, it's the best.

You have made it so easy to understand the with clause. Thank You!

@techTFQ

2 жыл бұрын

Your welcome 🙏🏼 Glad this helped

Hi Tawfeeq @techTFQ really grateful to have found your videos' on SQL, no one could have explained better and so much in depth. Do you also conduct online bootcamps on SQL / Python? Would like to learn from you.