Joins in SQL - very important for interviews | SQL session 11 | Trendytech

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  • Опубликовано: 1 фев 2025

Комментарии • 45

  • @sumitmittal07
    @sumitmittal07  2 года назад +1

    Checkout the Big Data course details here: trendytech.in/?referrer=youtube_sql12

  • @saibabatelagamsetty2538
    @saibabatelagamsetty2538 2 года назад +4

    Truly the most beautiful way "EXPLAINING THE CONCEPT OF JOINS ". Its a treasure for those who want to learn effectively, precisely and accurately about the concept. The best of best series. Thank for the free sessions #Summitmittal sir.

  • @Sandip_Patle
    @Sandip_Patle 2 года назад +3

    🔰Completely understood and absorbed I'd say. I learn Join for the first time and got enormous insights throughout the session.
    Thank you very much Sumit sir🙏🏻💜💚

  • @JardaniJovonovich192
    @JardaniJovonovich192 3 года назад +6

    Thanks for the video !!
    1.) Could you also explain why JOINS are not better performant ? Instead, Is it that JOINS are performant but not scalable ?
    2.) Could you also explain about ordering of GROUP BY, HAVING, SORT, JOIN ?(Just like the way you explained in Session 7)

    • @sumitmittal07
      @sumitmittal07  3 года назад +6

      yes yes, will be coming up with these in upcoming sessions.

  • @technicalknowledge9828
    @technicalknowledge9828 2 года назад

    Best SQL tutorial I have seen yet

  • @diptigupta8258
    @diptigupta8258 2 года назад +2

    Detailed explanation. Very much Helpful.

  • @dronacharyulu755
    @dronacharyulu755 3 года назад +1

    Fantastic explaination.
    Please provide class regularly without any gaps in between it will help us more

  • @pridename2858
    @pridename2858 Год назад

    Excellent ,working on it and learning ,thanks sir.

  • @AmitKumar-lc1sm
    @AmitKumar-lc1sm 2 года назад

    Hello Sumit Sir, I am really enjoying your courses. Thea way you explain the things in much simpler way. Alot much thanks to you.
    and Please answer which join is fast amongs all the joins you explained?

  • @lakshayshukla4808
    @lakshayshukla4808 3 года назад +1

    How many videos are left now? Eagerly waiting for the next one. your way of teaching is wonderful.

  • @siddharthrao3115
    @siddharthrao3115 2 года назад +3

    Crisp explanation!!

    • @sumitmittal07
      @sumitmittal07  2 года назад

      Happy that you liked my explanation.

  • @vandanasharma4738
    @vandanasharma4738 2 года назад

    Thank you sir for this amazing series.
    Please explain why we need right join when we already have left join. We have to interchange only the tables in order to get the right join from left join then why we need the right joint specifically could you please share any industry use case in this regards thank you sir

  • @vishawjyoti7499
    @vishawjyoti7499 2 года назад

    Sir, really very simple and wonderful description. Please share the notepad document for reference of queries

  • @saikatsen7589
    @saikatsen7589 Год назад

    Thank you, Sir. Its really a great course

  • @surendraprasad3574
    @surendraprasad3574 3 года назад +3

    SUMMET SIR KINDLY REQUEST YOU TO PLS LAUNCH FURTHER SESSION ON SQL ON RUclips AS I HAVE COMPLETED ALL TILL SESSION 11 ALONG WITH HANDS ON. NEED MORE VIDEOS ON COMPLEX JOIN FOR 3 TABLES, MINUS OPERATOR EXAMPLE, VIDEO ON MAINLY FACT AND DIMENSION TABLE WITH EXAMPLE, RANK , DENSE RANK WINDOW NEED TO BE COVERED PLEASE ITS MY REQUEST FROM YOU BRING MORE VIDEOS ON SQL ASAP I AM WAITING SINCE YESTERDAY.

  • @balu00788
    @balu00788 3 года назад +1

    Fantastic, Thank you!!

  • @ashwinisingh6251
    @ashwinisingh6251 2 года назад +2

    Will you teach window function?

  • @varunsai4355
    @varunsai4355 Год назад

    please explain self joins as well

  • @KServer8850
    @KServer8850 Год назад

    I am a student of computer science. My dream is to be an data engineer. I saw your new course. Please tell me about the cost of the program. And any discount..

  • @anirudhupadhyay695
    @anirudhupadhyay695 2 года назад +1

    What happens with an INNER JOIN when many to one relationship is present?

  • @greatmonk
    @greatmonk 2 года назад

    Hi Sumit Sir, Thank you for sharing. Do we have any sessions for complex joins involving many tables?

  • @FaizanKhan-wk2lg
    @FaizanKhan-wk2lg 2 года назад +1

    Don't we use self join in any scenario?

  • @chalanatyjostna2229
    @chalanatyjostna2229 Год назад

    can u explain joining more than 3 tables please

  • @akshay8756
    @akshay8756 Год назад

    can you show select * from students (students table), i need to understand inner join between course table and students. you didnt showed student table in this video

  • @madwholika
    @madwholika 2 года назад

    Thanks a lot

  • @subratabhanu2627
    @subratabhanu2627 2 года назад +1

    Self joins??

  • @shubhamSharma-du4ir
    @shubhamSharma-du4ir 2 года назад

    Thank you sir

  • @juleekumari188
    @juleekumari188 2 года назад

    Need to understand INSERT OVERWRITE using more than one type of join , Can u pleass help?

  • @vishnujatav6329
    @vishnujatav6329 3 года назад +1

    According to google and w3schools, there is keyword 'FULL OUTER JOIN' for full outer join, and you are saying there is not. Instead of, we are using UNION operator for this purpose. Can you please it and clarify this confusion. Thank you

    • @sumitmittal07
      @sumitmittal07  3 года назад +2

      It's depends on database you use. Atleast whatever I am using does not support it.

    • @rishabhmaheshwari1639
      @rishabhmaheshwari1639 2 года назад

      For Hive/Impala we have FULL OUTER JOIN to join tables with all data which is doing similar operation for UNION.

    • @sumitmaurya6152
      @sumitmaurya6152 Год назад

      Full outer join doesn't work in mysql database that is the reason we use union to perform the same operation, different flavours/types of dbms have some differences in syntax depends on which one you are using.

  • @mayuraatre9548
    @mayuraatre9548 Год назад

    Hi,
    From where can we get the test file used for writing queries please?

  • @rumareddy9055
    @rumareddy9055 Месяц назад

    26:07

  • @amandokania2707
    @amandokania2707 2 года назад

    Where can I get a pdf documentation of this playlist?

  • @priyankachopra4718
    @priyankachopra4718 Год назад

    can we have a notes of the videos sir

  • @JayeshTatipamul
    @JayeshTatipamul 11 месяцев назад

    Hi @sumitmittal07 Sir
    The notes which you are writing, can we get it?

  • @tashi9154
    @tashi9154 2 года назад

    Can we use CASE END in joins ? I'm getting error

  • @realMujeeb
    @realMujeeb 2 года назад +1

    Thanks sir🥲

  • @pranayshinde6277
    @pranayshinde6277 2 года назад

    Joints are a very easy concept in SQL but you make it very difficult....

  • @dilawarjalil8842
    @dilawarjalil8842 Год назад

    Thanks Sir