Table Scan Vs Index Scan Vs Index Seek in sql server | by SQL Training Sessions

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  • Опубликовано: 11 сен 2024
  • This session will help you understand following :
    1. Table Scan vs Index Scan vs Index Seek
    2. How these concepts affects the sql query performance.
    3. Explain Actual Execution Plan
    4. How to include actual execution plan in sql query
    5. How to analyse sql query
    Thanks for watching!
    By sql Training Sessions
    By SQL
    Enjoy learning :)

Комментарии • 18

  • @ishwarmangapur324
    @ishwarmangapur324 2 года назад

    thanks for your all the videos those videos are really understanding and very helpfull.😊

  • @chandu9143
    @chandu9143 3 года назад +2

    Good 👍

  • @gauravsuryawanshi1639
    @gauravsuryawanshi1639 5 лет назад

    Hello Madam,
    i really cleared with the above concepts now...thank you

  • @P5toraskar1986
    @P5toraskar1986 2 года назад +1

    Good one Thank you.

  • @nitagawade3330
    @nitagawade3330 4 года назад +1

    Nice video....thnk you!!!

  • @ArunMaskeri
    @ArunMaskeri 5 лет назад

    I liked the vedio how you explained , but non clustered idx gave incorrect result

  • @bodoziada6242
    @bodoziada6242 Год назад

    i can't see the output list in the screen

  • @prasadbandi1995
    @prasadbandi1995 Год назад

    please make video on Team Foundation Server

  • @dikshachawla2475
    @dikshachawla2475 3 года назад

    hi mam..can you explain in hindi?

  • @bodalarupesh5024
    @bodalarupesh5024 4 года назад

    When using the
    select first_name from TBL_NC where id=5
    we see table scan and you could not clarify that

    • @anandprakash2478
      @anandprakash2478 4 года назад

      Yup i have addressed as well .as you mentioned the query was returning table scan

    • @rohitkarnatakapu4760
      @rohitkarnatakapu4760 4 года назад +2

      It still uses table scan because it has to go through all the records. However, if we add Fname in where condition, then it uses index-seek because the semi leaf nodes or the middle nodes have Fname

    • @anandprakash2478
      @anandprakash2478 3 года назад

      exactly, i was wondering after watching like that

  • @deepaksaraf7835
    @deepaksaraf7835 2 года назад

    Concepts of speaker are not clear.. she needs more study..