Complete guide to Database Normalization in SQL

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  • เผยแพร่เมื่อ 16 ธ.ค. 2024

ความคิดเห็น • 426

  • @petruciucur
    @petruciucur ปีที่แล้ว +146

    There is no doubt, for me you are the best Relational Database Management System trainer. The way you explain really makes me understand. Thanks!

    • @techTFQ
      @techTFQ  ปีที่แล้ว +8

      thanks buddy, glad you’ve liked my content

    • @Maya.1988
      @Maya.1988 ปีที่แล้ว +4

      @@techTFQ Hi any dedicated course is there .... on sql performance and sql admin in Udemy or anywhere
      I will make my company to buy🙏🔥

    • @Amigo1452
      @Amigo1452 ปีที่แล้ว

      Very clearly explained each and every point

    • @shubhjangid7881
      @shubhjangid7881 3 หลายเดือนก่อน

      Can you share this sheet? or where can I find the same?

  • @iamnoob7593
    @iamnoob7593 ปีที่แล้ว +4

    Hands Down , Best video on normalization in entire internet.

  • @varsharani5601
    @varsharani5601 ปีที่แล้ว +4

    I used to think Normalization as a complex concept. But till the point, I reached in video yet, I am finding it very simple because of your explaining style. Thanks

  • @suganyanatarajan2661
    @suganyanatarajan2661 ปีที่แล้ว +11

    Best SQL trainer .. you teach the thought process as well which goes a long way! Thank you for all the great work.

  • @kunalkumar-hl6gv
    @kunalkumar-hl6gv ปีที่แล้ว +4

    This is the best video on internet which talks about this topic so perfectly!!!!!!!!!!!!!!!!!!!!! you forced me to comment!!!!!!!!!!!!!!!!!!!!! you are the best out there !!!

  • @JayavishnuMadhiri
    @JayavishnuMadhiri 5 หลายเดือนก่อน +4

    the one you are who clarifies the normalization without any doubts
    thank you so much sir

  • @shadowitself
    @shadowitself ปีที่แล้ว +1

    as soon as I started my journey with sql databases I came across Ur channel
    every film proves that it was super good choice
    another great content
    THX

  • @joaofstock
    @joaofstock ปีที่แล้ว

    I have to say that I have made 3 courses with modules about data modeling and schemas, and this is the first time that I'm realling understanding how to build an ER Diagram.
    Many thanks for your explanation and all the best

  • @anuragshah3433
    @anuragshah3433 ปีที่แล้ว +6

    For those who are confused on transitive dependency in 3NF, if we just look at the output of 2NF, Order_ID -> Order Number and Order number -> Sales contact first name and Order number -> Sale contact second name hence there is a transitive dependency. It was not flagged in 2NF as Order ID -> Sales contact first name and Order Id -> Sales contact second name, hence these are completely dependent on pk as well.

  • @greendaywithtrading7408
    @greendaywithtrading7408 ปีที่แล้ว +2

    You’re the best SQL trainer .you teach the thought process ,I think Normalization is a complex concept but after watching your video i feel it will be easy !!!! thank you very much for making it so easy to understand

    • @techTFQ
      @techTFQ  ปีที่แล้ว +1

      You're welcome ☺️

  • @pranajpatil903
    @pranajpatil903 6 หลายเดือนก่อน

    I have learned SQL from different platforms but never understood this concept but for the first time i felt it was so easy. Thankyou so much sir for such great videos.

  • @mohammedshahil4898
    @mohammedshahil4898 ปีที่แล้ว +16

    One of the most difficult concept explained in the best way possible👌👏🏻 As always a very useful video🙌🏻 No doubt you’re the best SQL trainer out there.

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Thank you bro 😎

  • @sominramchiary5880
    @sominramchiary5880 8 หลายเดือนก่อน +2

    Clear and straightforward explanation, all concept cleared on Normalization, Thank you so much buddy

  • @rahultino
    @rahultino 3 หลายเดือนก่อน +1

    Good explanation. One observation about the foreign keys. It might be a matter of personal preferences. Your example shows a separate 'relationship' table where you store primary keys of all the tables to tie them together. This is a good way. But another way which I have seen is to add the primary key of the product, customer, employee in the order table as a 'foreign key'. So you don't need a separate relationship table. This also simplifies the join. For example if you just want to show all the orders and customers. In the case of having a relationship table, you would have to join the order table with the relationship table, and then join with the customer table. In case you store the foreign key of customers in the order table, you just join the order and the customer table. I would love to read the benefits of choosing one over the other.

  • @jameskelly3574
    @jameskelly3574 6 หลายเดือนก่อน

    just "WOW". I have been struggling to understand normalization for my db class. You used a great visual example and I love how you copied the table from 1 form to the next so we could see the process building upon itself as we get to the higher levels of normalization. You just earned a sub and like. Thanks so much.

  • @dhanush98b11
    @dhanush98b11 11 หลายเดือนก่อน +1

    Toufiq bro, I can say that you are the gem 💎
    For teaching the sql concepts in the most understandable way.
    I'm working as plsql developer from 2 years without knowing anything about normalization.
    Thank you bhai for very informative contents on sql ❤.

  • @ManojKumar-hy8wc
    @ManojKumar-hy8wc ปีที่แล้ว +9

    Don't stop providing free content bro. Some people really can't afford the bootcamp course. I know it takes lot of effort from you to create the content. But trust me people will always remember you for what you have done.

    • @RohithS-ig4hl
      @RohithS-ig4hl ปีที่แล้ว

      You try spoke facts!

    • @ManojKumar-hy8wc
      @ManojKumar-hy8wc ปีที่แล้ว

      @@RohithS-ig4hl?? You try spoke facts... what does that sentence mean?

    • @RohithS-ig4hl
      @RohithS-ig4hl ปีที่แล้ว +1

      @@ManojKumar-hy8wc what you said in the comment is true. "people will remember you for what you have done"

  • @Fashionsparklers
    @Fashionsparklers ปีที่แล้ว +1

    I found the best tutor to learn the Database and the it's content is very clear to understand. Thanks for the video.

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Glad you liked the content

  • @542_jayalaxmi_cse-a2
    @542_jayalaxmi_cse-a2 ปีที่แล้ว +1

    Nice explanation sir I have just started to learn SQL u have cleared the way how to learn in the proper manner

  • @satyabharadwaj7779
    @satyabharadwaj7779 ปีที่แล้ว +8

    Each time you post a video, I'd always feel that this is the session tailor made for me. This video goes into one of many straight-in and simple to grasp conceptual videos of yours @Thoufiq. If there's anything I can ask, please make videos with mini projects on topics like normalization on complex data. Once again, thanks for sharing such a valuable content!

    • @techTFQ
      @techTFQ  ปีที่แล้ว +2

      Thank you Satya .. much appreciated.. and noted on the suggestion

    • @sivasrimakurthi206
      @sivasrimakurthi206 ปีที่แล้ว

      @@techTFQ I would be eagerly looking for it :-) every time, there is a video from you, it feels like a obligation for me to watch it :-) as I don't want to miss a valuable lesson that you teach. May god bless you and, keep rocking brother.

    • @techTFQ
      @techTFQ  ปีที่แล้ว +1

      Thank you Siva.. very kind of you

  • @parthibangopi8393
    @parthibangopi8393 7 หลายเดือนก่อน

    I was very confused in this concept and have seen many videos and no one explained the way you explained. You are awesome. Expecting more videos related to SQL. Thank you

  • @abhishekpunia606
    @abhishekpunia606 10 หลายเดือนก่อน

    "Mind is officially blown! 🤯 Thanks for simplifying Normalization in DBMS with real-world examples. You're a rockstar teacher! 🌟 #DBMSSimplified"

  • @suyash7450
    @suyash7450 ปีที่แล้ว

    Normalization was topic that used to confuse me very time i saw so much content regarding NFs but getting confused more n more but now after watching ur video i am absolutely clear abut it ...

  • @sumikgajbhiye3727
    @sumikgajbhiye3727 7 หลายเดือนก่อน

    00:00 Normalization is the process of designing a database effectively to avoid data redundancy.
    05:28 Data set is denormalized, all the data is bundled together into a single file or table.
    10:36 The data set satisfies the first normal form.
    16:11 The dataset should be split into separate tables based on dependencies.
    21:24 Normalize the database to satisfy the third normal form
    26:15 The data set has been normalized into third normal form.
    31:23 In denormalized databases, insertion anomalies can occur due to data redundancy.
    36:14 Insertion anomaly can be eliminated by using a normalized database.

  • @varshagoel5315
    @varshagoel5315 10 หลายเดือนก่อน +1

    My Goddd!!!!! What an easy explanation of such complex subjects. Great work!!!

  • @shravyatharapatti
    @shravyatharapatti 6 หลายเดือนก่อน

    Best way of explaining NF's,First time I understood the concepts clearly.

  • @basavaprabhusherikar7737
    @basavaprabhusherikar7737 ปีที่แล้ว

    I had no idea about what is 1NF, 2NF, or anything related to it. But after watching this video I get the idea now. And also why is it good to have different tables, and what kind of anomalies we would be facing if not done. Thanks buddy! Really a very good tutorial. Very clear and detailed explanation.

  • @souravshome2602
    @souravshome2602 ปีที่แล้ว +1

    No doubt, you are the best sql trainer. After watching your video my all doubts about normalisation is cleared. Never miss your single video. Because of you I got to know lots of concepts about sql. Thank you Sir❤️.

  • @poojabagane3691
    @poojabagane3691 ปีที่แล้ว

    One of the best video on Normalization I have ever seen... Thank you for this beautiful explanation I got clarification on Normalization in an unequivocal manner.!!!!

  • @bharath8017
    @bharath8017 6 หลายเดือนก่อน

    too good sir,been searching in various other channels for this content but I could not understand anything,but your content and explaination was too good that i can understand by just a single watch

  • @hsudhdhud
    @hsudhdhud 9 หลายเดือนก่อน +1

    Definitely this is one of the best best best best video from an organisation perspective.

  • @santanuroy2121
    @santanuroy2121 ปีที่แล้ว

    Hello Thoufiq, as I told in Linkedin that I will watch Normalization...
    Yes, I watched now...
    As per I think this video is the most easiest to understand about RDBMS with Normalization those who have fear about Normalization...
    In the TH-cam, there is no other video content available to beat this video.
    I am happy and understood fully.
    Thanks
    Santanu Roy

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Thank you Santanu 🙏🏼
      Super glad you found this helpful

  • @akashchristopher
    @akashchristopher 9 หลายเดือนก่อน

    I love the way of your teaching. Crystal clear explanation.. Thank you Toufiq...

  • @parandama4589
    @parandama4589 ปีที่แล้ว +1

    Your a master of RDBS concepts

  • @VaishnaviShinde-hh8sg
    @VaishnaviShinde-hh8sg 7 หลายเดือนก่อน

    You are the best teacher.your all sql videos are best for learning. Your explanation throughout the videos is mindblowing. please make more videos on Sql

  • @mianawais99
    @mianawais99 5 หลายเดือนก่อน

    Best ever detailed and well explained video on DB normalization.

  • @dineshvardam2176
    @dineshvardam2176 ปีที่แล้ว +1

    You are really great sir, you explained this complex concept in easiest way...

  • @chinyeremgbebuihe2536
    @chinyeremgbebuihe2536 2 วันที่ผ่านมา

    Your explaining style is superb😮

  • @vaibhavpatel6996
    @vaibhavpatel6996 2 หลายเดือนก่อน

    Great explanation by you. Really learned something and I appreciate the length of content. You made short crisp and straight to the point.

  • @Joshua_t_
    @Joshua_t_ ปีที่แล้ว +1

    Great video. Working through the example database helps a lot.

  • @viveksingh524
    @viveksingh524 8 หลายเดือนก่อน

    Finally today I learnt normalisation in easy way. Thanks a lot 😊

  • @sudhanshugrover2726
    @sudhanshugrover2726 ปีที่แล้ว +4

    Great explanation Thoufiq. Always a pleasure to watch your videos. I really like the way you channelize your thoughts in an easily comprehensible manner. The speed, clarity and content of your videos are absolutely perfect. Have watched other videos of yours and same opinion goes for them too. Coming to this one, i guess you knowingly kept the sales info till the 3rd step to explain transitive dependency, though you could've eliminated it at the same time you normalized Order/Prod/Cust info, since sales, just like customer, was also absolutely independent of candidate keys. Keep up the good work

  • @jaychavhan6267
    @jaychavhan6267 ปีที่แล้ว +2

    Sir this is what I'm searching for from last couple of days .... Thank you so much 🙏🙏

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Your welcome buddy

  • @Wanderer-c9u
    @Wanderer-c9u หลายเดือนก่อน

    Such an amazing video! Just watched it for once and that too in ~2x and I got the whole concept in one go.

  • @quintonbart8452
    @quintonbart8452 ปีที่แล้ว

    Absolutley brilliant. I understood the concept immediately. You are an excellent trainer.

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Glad it was helpful

  • @mohitdaxini3067
    @mohitdaxini3067 ปีที่แล้ว +1

    Too useful and seemed a relatable example rather than just reading out the definitions like other yt videos do when it comes to SQL normalisation topic...kudos 🏆

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Thanks buddy, glad you like it

  • @vignesan4197
    @vignesan4197 ปีที่แล้ว +1

    I love your way of explanation and your SQL series will give a clear idea about basic to advanced levels of SQL skills. Thanks!❤

  • @attilapekkaszabo-iv6tl
    @attilapekkaszabo-iv6tl ปีที่แล้ว

    Brilliant, had this topic way back in Uni, but your explanation is 100x better. Great for refreshing my knowledge.

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Great to hear

  • @poojas26
    @poojas26 2 หลายเดือนก่อน

    Best explanation in a simple and clear way .

  • @yordanosadigo
    @yordanosadigo ปีที่แล้ว

    No one explained this like you do....Thank you!

  • @garrettlassalle6544
    @garrettlassalle6544 ปีที่แล้ว +1

    Thank you for this video. After watching it, I understand it now. You explained it well.

  • @estherngina5278
    @estherngina5278 11 วันที่ผ่านมา

    Thank you sir,,,,you just gat no idea on how much this content has helped me,,,,May God bless you Abundantly 🙏🏾🙌

  • @bilalshahbazakmal2543
    @bilalshahbazakmal2543 ปีที่แล้ว +2

    Best Chanel for SQL

    • @techTFQ
      @techTFQ  ปีที่แล้ว +1

      Thanks Bilal

    • @mohs8789
      @mohs8789 ปีที่แล้ว

      Yeah indeed.

  • @VishalKumar-sc9ep
    @VishalKumar-sc9ep ปีที่แล้ว +1

    Hats off sir ❤
    Now my concepts are crystal clear

  • @mangeshc1265
    @mangeshc1265 ปีที่แล้ว

    The best explanation ever on concept of Normalization. The concept is perfectly understood. kudos!

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Great to hear that

  • @shorakhutte1887
    @shorakhutte1887 ปีที่แล้ว

    Very clearly explained. My doubts got clear. Thanks for providing valuable content.

  • @mohs8789
    @mohs8789 ปีที่แล้ว

    All concepts Explained in really simple ,clear and crisp way.👍

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Thank you 🙏🏼

  • @liberatingpanda7878
    @liberatingpanda7878 ปีที่แล้ว

    You should be a lecturer....Made me understood the concept better than my current prof who took 3 hrs and i did not understand sh*t

  • @emmanueljustice9059
    @emmanueljustice9059 27 วันที่ผ่านมา +1

    First time commenting on a TH-cam even though I always give likes to good ones. Thanks for what you do. Hopefully in future, we see contents on Trigger, transaction on SQL from you too. ❤

    • @techTFQ
      @techTFQ  27 วันที่ผ่านมา

      I appreciate you taking the time to add your first comment.. means a lot and many other topics coming soon

  • @travelnlearn
    @travelnlearn 7 หลายเดือนก่อน

    Amazing video, I completely got entire concept in 1 video

  • @Rajnikapoor-vm4mm
    @Rajnikapoor-vm4mm ปีที่แล้ว

    You are truly amazing sir, the way you describe each concept make it so clear and easy .... normalization is the topic which i always get to confuse but your explanation cleared all my doubts... thanks again

  • @amirtahaehsaei1609
    @amirtahaehsaei1609 ปีที่แล้ว

    Brief, solid, and easy to understand. thumbs up!

  • @minithyagraj6692
    @minithyagraj6692 7 หลายเดือนก่อน

    Very well explained! This concept couldn't be made simpler. Thank you!!

  • @bhupellygopikrishna3039
    @bhupellygopikrishna3039 ปีที่แล้ว

    Excellent Explanation, It Cleared every doubt in Normalization. Thanks

  • @triparnodas2269
    @triparnodas2269 ปีที่แล้ว

    You are doing a great job brother, most crystal clear explanation i have found on this topic normalisation, you are making SQL learning a cake walk for all the learners, kudos to you

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Thank you Das .. so glad this helped

  • @Valture.
    @Valture. 5 หลายเดือนก่อน

    Fantastic guide on database normalization! 🌟
    This video breaks down complex concepts into easy-to-understand steps, making it accessible for both beginners and intermediate learners. The examples were clear and simple, helping me grasp the importance of each normalization form
    Kudos to the creator for such an informative and well-structured tutorial.
    Looking forward to more content like this!

  • @prajackW
    @prajackW ปีที่แล้ว +1

    No one can explain it better than you sir ... thank you very much for making it so easy to understand 🙏♥

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Thanks buddy, much appreciated

  • @srinubathina7191
    @srinubathina7191 10 หลายเดือนก่อน +1

    Thank You so much
    the way of your teaching is excellent sir

  • @breserskcrimp9310
    @breserskcrimp9310 ปีที่แล้ว

    best video so far on normalization.

  • @santoshhulloli7625
    @santoshhulloli7625 ปีที่แล้ว +1

    Awesome explanation in a simple way. Superb sir keep it up & thank you so much

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Glad you liked it bro

  • @AparajithaSaravanakumar
    @AparajithaSaravanakumar 11 หลายเดือนก่อน +1

    Best normalisation explanation sir
    Thank you ❤

  • @vickysreeramadas6386
    @vickysreeramadas6386 6 หลายเดือนก่อน

    sir an awesome explanation just like one video whole concept of normalization cleared

  • @Nikhilg-rs7iv
    @Nikhilg-rs7iv 7 หลายเดือนก่อน

    Wasted few days watching videos from other channels. Completely I recommend this guys channel anything related to SQL

    • @aroraaaditya
      @aroraaaditya 7 หลายเดือนก่อน

      check jenny lectures bro on normalization makes you unsubscribe this channel

  • @deepkaan
    @deepkaan ปีที่แล้ว

    Thanks for making this video. I was searching for this type of concept. Finally I came across your content.

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Glad it was helpful

  • @juberbashakhadumiya8527
    @juberbashakhadumiya8527 ปีที่แล้ว

    i have watched many normalization videos but your teaching made me to completely understand this concept. Thank you 😊 @Thoufiq bhai

    • @techTFQ
      @techTFQ  ปีที่แล้ว +1

      Glad to know that Basha 👍

  • @Mind_hit
    @Mind_hit ปีที่แล้ว +1

    Thank you sir the way you explain everything is easy to understand for beginners.

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Glad to know that buddy

  • @shubhjangid7881
    @shubhjangid7881 3 หลายเดือนก่อน

    Beyond Awesome. God bless you Sir. absolute gorgeous. Crystal clear understanding. Thank You so much.

  • @micaelzekarias1537
    @micaelzekarias1537 ปีที่แล้ว

    Ur way of explaining things are so interesting. Keep it up. Love ur way of teaching. GBU

  • @suriyars5662
    @suriyars5662 ปีที่แล้ว

    There is no second thought if a video comes by techtfq the thing is it will have some insights which make us even better in that topic so I watch all videos even when I know the concepts also

  • @joshuastates
    @joshuastates ปีที่แล้ว +1

    Great video, Thoufiq. Very clear explanations

  • @JuhinPavithran-l9i
    @JuhinPavithran-l9i ปีที่แล้ว

    Really. understood concept of database normalisation. Kindly make a similarlvideo regarding remaining normal forms

  • @ananyamitra6645
    @ananyamitra6645 ปีที่แล้ว

    you are the gem of a teacher. Thanks

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Welcome:)

  • @spiritualthoughts5813
    @spiritualthoughts5813 ปีที่แล้ว

    That is very easy and well explained to understand for every one. Thank you Sir

  • @PrithamPranamyaReddy
    @PrithamPranamyaReddy ปีที่แล้ว

    Such a nice way of teaching really the way u r teaching is very well understandable and too full knowledge about subject

  • @PatrickMuvunyi10
    @PatrickMuvunyi10 ปีที่แล้ว +1

    Thanks for making it crystal clear! Satisfied!

  • @HvHv-qd5yu
    @HvHv-qd5yu 4 หลายเดือนก่อน

    Excellent way of teaching hats off

  • @manikantashet5921
    @manikantashet5921 ปีที่แล้ว +1

    Amazing explanation and clarity. Thank you!

  • @rezatajari-k2i
    @rezatajari-k2i 25 วันที่ผ่านมา

    Thank you for the best clear explanation and share this information
    helpfully for me 🙏🏼

  • @maheshvaran3342
    @maheshvaran3342 3 หลายเดือนก่อน

    Your way of explanation is awesome🙌, This is what I'm expecting. Thanks!

  • @makav3li665
    @makav3li665 8 หลายเดือนก่อน +1

    Well curated and properly explained 👍

  • @sandeepmanjunath8004
    @sandeepmanjunath8004 ปีที่แล้ว +1

    Thank you looking forward for more sessions like this

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Thanks buddy

  • @adityaf17
    @adityaf17 ปีที่แล้ว

    A full video on how someone should normalize the database😍

  • @SivaVuyyuru-p1m
    @SivaVuyyuru-p1m 8 หลายเดือนก่อน

    You Simply nailed 👍. Simple and crisp. It would be have been nice if you could explain BCNF, 4NF and 5 NF. Your explanation damn good.

  • @njorogedavidke
    @njorogedavidke ปีที่แล้ว

    bravo! Very good examples and great/neat presentation! I have been struggling with this topic for quite sometime and now I can put it to rest. Thank you

  • @ajaychavan1268
    @ajaychavan1268 ปีที่แล้ว

    Yeah Tfq. I have no words . You are great come up with more complex sql queries . I am regular viewer hence . Love you from india

    • @techTFQ
      @techTFQ  ปีที่แล้ว

      Thank you very much 😊

  • @kasulagovardhan3
    @kasulagovardhan3 21 วันที่ผ่านมา

    Thank you. A great session with more depth review.

  • @hafizmoizmoiz6901
    @hafizmoizmoiz6901 7 หลายเดือนก่อน

    Very informative tutorial. All my concepts are clear now. Keep it up ❤

  • @jameselechi6209
    @jameselechi6209 10 หลายเดือนก่อน

    Bro burst my brain, you're too good abeg, I swr. After you na you.

  • @sher.5027
    @sher.5027 ปีที่แล้ว

    Very good I loved the video. The colored data was helpful to understand. Keep your data coloured it helps. And your clear speaking also helps.

  • @omkargurme20
    @omkargurme20 ปีที่แล้ว

    Very well explained sir. Thank you for the information