CTE in SQL (Common Table Expression) | SQL WITH Clause | CTE Query Performance | Advanced SQL

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𝐖𝐚𝐧𝐭 𝐭𝐨 𝐌𝐚𝐬𝐭𝐞𝐫 𝐒𝐐𝐋? 𝐋𝐞𝐚𝐫𝐧 𝐒𝐐𝐋 𝐭𝐡𝐞 𝐫𝐢𝐠𝐡𝐭 𝐰𝐚𝐲 𝐭𝐡𝐫𝐨𝐮𝐠𝐡 𝐭𝐡𝐞 𝐦𝐨𝐬𝐭 𝐬𝐨𝐮𝐠𝐡𝐭 𝐚𝐟𝐭𝐞𝐫 𝐜𝐨𝐮𝐫𝐬𝐞 - 𝐒𝐐𝐋 𝐂𝐡𝐚𝐦𝐩𝐢𝐨𝐧𝐬 𝐏𝐫𝐨𝐠𝐫𝐚𝐦 𝐛𝐲 𝐒𝐮𝐦𝐢𝐭 𝐒𝐢𝐫!

"𝐀 8 𝐰𝐞𝐞𝐤 𝐏𝐫𝐨𝐠𝐫𝐚𝐦 𝐝𝐞𝐬𝐢𝐠𝐧𝐞𝐝 𝐭𝐨 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐜𝐫𝐚𝐜𝐤 𝐭𝐡𝐞 𝐢𝐧𝐭𝐞𝐫𝐯𝐢𝐞𝐰𝐬 𝐨𝐟 𝐭𝐨𝐩 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐛𝐚𝐬𝐞𝐝 𝐜𝐨𝐦𝐩𝐚𝐧𝐢𝐞𝐬 𝐛𝐲 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐢𝐧𝐠 𝐚 𝐭𝐡𝐨𝐮𝐠𝐡𝐭 𝐩𝐫𝐨𝐜𝐞𝐬𝐬 𝐚𝐧𝐝 𝐚𝐧 𝐚𝐩𝐩𝐫𝐨𝐚𝐜𝐡 𝐭𝐨 𝐬𝐨𝐥𝐯𝐞 𝐚𝐧 𝐮𝐧𝐬𝐞𝐞𝐧 𝐏𝐫𝐨𝐛𝐥𝐞𝐦."

𝐇𝐞𝐫𝐞 𝐢𝐬 𝐡𝐨𝐰 𝐲𝐨𝐮 𝐜𝐚𝐧 𝐫𝐞𝐠𝐢𝐬𝐭𝐞𝐫 𝐟𝐨𝐫 𝐭𝐡𝐞 𝐏𝐫𝐨𝐠𝐫𝐚𝐦 -

𝐖𝐚𝐧𝐭 𝐭𝐨 𝐥𝐞𝐚𝐫𝐧 𝐁𝐢𝐠 𝐃𝐚𝐭𝐚 𝐛𝐲 𝐒𝐮𝐦𝐢𝐭 𝐒𝐢𝐫?
𝐜𝐡𝐞𝐜𝐤𝐨𝐮𝐭 𝐭𝐡𝐞 𝐛𝐢𝐠 𝐝𝐚𝐭𝐚 𝐜𝐨𝐮𝐫𝐬𝐞 𝐝𝐞𝐭𝐚𝐢𝐥𝐬

I have trained over 20,000+ professionals in the field of Data Engineering in the last 5 years.

CTE in SQL | Common Table Expression | SQL WITH Clause | CTE Query Performance | Advanced SQL

In this video you will learn about CTE (Common table expressions) In SQL. The WITH clause really simplifies the complicated queries, and makes the SQL queries readable.

with Inner query we can see the code getting messy and there is a lot of redundancy.

Also we have talked about the performance of queries using CTE.
We even saw how CTE can degrade the performance.

CTE is very important from SQL Interview perspective, I hope this video should have given you a good idea on how to work with Common table expression in SQL.

J𝗼𝗶𝗻 𝗺𝗲 𝗼𝗻 𝗦𝗼𝗰𝗶𝗮𝗹 𝗠𝗲𝗱𝗶𝗮:🔥

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#CTE #AdvancedSQL #WITHClause #bigdata #dataengineering

Рекомендации по теме

Комментарии

I learn with clause on my own after referring bunch of codes in project that i am working on, took lot of time to understand it. Now that i know it, got addicted to it, its very useful.
Wish i would have seen this video earlier
Thanks Sumit Sir

akshayzade

It's one of the best tutorial with in depth explanations and clarity. You just made understanding & working of CTE so easy with your explanations sir. Hats off to you for this.

kiransuresh

Thankyou for the video Sir. 3 months back I started preparing for interviews. I have watched almost all of your videos here. It helped me a lot in interviews. Today I have 7+ offer and all from top product companies. Invest in yourself, you will get best ROI... In my case 6x in 14 months. And Sumit sir played a very important role.

vikastiwari

Excellent in-depth video Sumit sir. Really liking it and will benefit us to a great extent.

rajorshi

Thanks for the explanations. It has made CTE and subqueries clearer.👌

martinsnwokolo

The depth in your videos is incredible!

prashanttripathi

This tutorial gave full clarity on CTE(With clause). Thank you sir.
Could you please make videos on hints and optimization tuning? It will help us a lot.

dasubabu

Thank you for such a nice and informative tutorial on CTE. This cleared a lot of doubts.

GauravSharmagvs

Thank you so much for the detailed video for CTE

AmitSingh-utwt

"Fantastic explanation! Your detailed breakdown of the concepts and step-by-step walkthrough made it easy to follow along. The examples you provided really helped to clarify the more complex parts. Thank you for making such an informative and well-structured video!"

tejasvik

Thank you @ Sumit Mittal Sir for an amazing video on CTE.

pratikgugliya

It is really advanced CTE concept 😊😊😊😊

nepalbudha

Very nicely explained, Maza aa gya :) !!

r_s

CTE looked like a mysterious concept initially after just looking into some of the articles from google search, this video has made it look easy to grasp its purpose, syntax, benefits, possible limitations & internals, explained in a way that makes learning interesting & joyful, thank you very much sir :)

arunsundar

Thanks, very good explanation, please keep on providing right knowledge to all of us😊
Please do videos on optimizations...

mallikarjunpatil

This video is very helpful sir, i have used CTE before but didn't know about having more than 1 table in WITH clause. Can you also explain about <Materialized View> in your next video. Thankyou Sir

abhaypartapsingh

Great video sir . thanks for the effort

TrustinData

Just a suggestion please share the table and it's contents as a link in video. So that while learning we can practice side by side. Btw, course is very helpful and builds confidence in SQL.

adityatripathy

SQL tuning and optimization please sir!! Thank you and really great work.

prashantguptanz

Thank you sir, Do more please sirrr...

gouthamganesh

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