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

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  • Опубліковано 18 гру 2024

КОМЕНТАРІ • 44

  • @sumitmittal07
    @sumitmittal07  2 роки тому +1

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

  • @saibabatelagamsetty2538
    @saibabatelagamsetty2538 2 роки тому +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.

  • @JardaniJovonovich192
    @JardaniJovonovich192 2 роки тому +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  2 роки тому +6

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

  • @Sandip_Patle
    @Sandip_Patle 2 роки тому +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🙏🏻💜💚

  • @pridename2858
    @pridename2858 Рік тому

    Excellent ,working on it and learning ,thanks sir.

  • @diptigupta8258
    @diptigupta8258 2 роки тому +2

    Detailed explanation. Very much Helpful.

  • @saikatsen7589
    @saikatsen7589 Рік тому

    Thank you, Sir. Its really a great course

  • @technicalknowledge9828
    @technicalknowledge9828 2 роки тому

    Best SQL tutorial I have seen yet

  • @siddharthrao3115
    @siddharthrao3115 2 роки тому +3

    Crisp explanation!!

  • @balu00788
    @balu00788 2 роки тому +1

    Fantastic, Thank you!!

  • @vandanasharma4738
    @vandanasharma4738 2 роки тому

    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 роки тому

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

  • @dronacharyulu755
    @dronacharyulu755 2 роки тому +1

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

  • @AmitKumar-lc1sm
    @AmitKumar-lc1sm 2 роки тому

    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?

  • @ashwinisingh6251
    @ashwinisingh6251 2 роки тому +2

    Will you teach window function?

  • @lakshayshukla4808
    @lakshayshukla4808 2 роки тому +1

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

  • @surendraprasad3574
    @surendraprasad3574 2 роки тому +3

    SUMMET SIR KINDLY REQUEST YOU TO PLS LAUNCH FURTHER SESSION ON SQL ON UA-cam 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.

  • @madwholika
    @madwholika 2 роки тому

    Thanks a lot

  • @varunsai4355
    @varunsai4355 Рік тому

    please explain self joins as well

  • @greatmonk
    @greatmonk Рік тому

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

  • @mayuraatre9548
    @mayuraatre9548 Рік тому

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

  • @shubhamSharma-du4ir
    @shubhamSharma-du4ir 2 роки тому

    Thank you sir

  • @JayeshTatipamul
    @JayeshTatipamul 9 місяців тому

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

  • @FaizanKhan-wk2lg
    @FaizanKhan-wk2lg 2 роки тому +1

    Don't we use self join in any scenario?

  • @anirudhupadhyay695
    @anirudhupadhyay695 2 роки тому +1

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

  • @subratabhanu2627
    @subratabhanu2627 Рік тому +1

    Self joins??

  • @KServer8850
    @KServer8850 Рік тому

    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..

  • @amandokania2707
    @amandokania2707 2 роки тому

    Where can I get a pdf documentation of this playlist?

  • @vishnujatav6329
    @vishnujatav6329 2 роки тому +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  2 роки тому +2

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

    • @rishabhmaheshwari1639
      @rishabhmaheshwari1639 2 роки тому

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

    • @sumitmaurya6152
      @sumitmaurya6152 Рік тому

      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.

  • @akshay8756
    @akshay8756 Рік тому

    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

  • @chalanatyjostna2229
    @chalanatyjostna2229 Рік тому

    can u explain joining more than 3 tables please

  • @juleekumari188
    @juleekumari188 2 роки тому

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

  • @tashi9154
    @tashi9154 2 роки тому

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

  • @priyankachopra4718
    @priyankachopra4718 Рік тому

    can we have a notes of the videos sir

  • @realMujeeb
    @realMujeeb 2 роки тому +1

    Thanks sir🥲

  • @pranayshinde6277
    @pranayshinde6277 2 роки тому

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

  • @dilawarjalil8842
    @dilawarjalil8842 Рік тому

    Thanks Sir