The cost rolling back transactions (postgres/mysql)

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  • เผยแพร่เมื่อ 3 ก.พ. 2025

ความคิดเห็น • 21

  • @hnasr
    @hnasr  3 ปีที่แล้ว +5

    Check out my udemy Introduction to Database Engineering course
    database.husseinnasser.com
    Learn the fundamentals of database systems to understand and build performant backend apps

  • @abhi9811206369
    @abhi9811206369 3 ปีที่แล้ว +6

    'vacuum full' command will actually lock the the rows on a given page and prevent read writes because it will copy the entire page contents and create a separate page and put them there. This way the freed up space can be reclaimed by the system. That's why it's important to not run 'vacuum full' on production tables if you don't want any downtime

  • @ionelCristianLupu_
    @ionelCristianLupu_ 3 ปีที่แล้ว +1

    I could not notice you just walked in a circle on that street 😅. Nice info btw!

  • @randomic_bear
    @randomic_bear 3 ปีที่แล้ว +1

    Maybe you could discuss about in which application types or scenarios you prefer postgres over mysql/mariadb and vice-versa. I'm learning a lot from your videos, by the way!

  • @risncch6595
    @risncch6595 3 ปีที่แล้ว +1

    Which algorithms are most important in learning the internals of a database like mysql/postgresql?

  • @randomorgan5891
    @randomorgan5891 3 ปีที่แล้ว +2

    Hello, could you recommend some books to read? Talking about software development in general. Great video btw!

  • @saggitt
    @saggitt 3 ปีที่แล้ว

    After vacuum deletes those 50M old tuples, you are left with mostly empty pages. Does having such pages slow down select queries?

  • @JayMikB
    @JayMikB 3 ปีที่แล้ว

    Hi Hussein,
    Please Can you do a video, on Reconciliation system for Fintechs.

  • @goutamramanath
    @goutamramanath 3 ปีที่แล้ว

    Hahaha, I'm just curious to know if you stepped out to make a video or created a video when u came for a daily walk.
    But jokes aside, the video was informative.

  • @cse2335
    @cse2335 3 ปีที่แล้ว +12

    It would be intresting if you can do youtube on bitcoin in depth as backend point of view...🙏

    • @orgamliel5233
      @orgamliel5233 3 ปีที่แล้ว +1

      yes

    • @squirrel1620
      @squirrel1620 3 ปีที่แล้ว +3

      Here's the rundown: you're being conned by those who promote crypto

    • @daleryanaldover6545
      @daleryanaldover6545 3 ปีที่แล้ว +1

      @@squirrel1620 very accurate

  • @petr-to3mv
    @petr-to3mv 2 ปีที่แล้ว

    Which country do you live in?) Thanks!

  • @cse2335
    @cse2335 3 ปีที่แล้ว

    Hey, which is your fav db & why?🤔

    • @hnasr
      @hnasr  3 ปีที่แล้ว +3

      I don’t really have a favorite. I am used to Postgres and I like it but I also like some of the design decisions mySQL/MariaDB make with database engines

    • @kumar16pawan
      @kumar16pawan 3 ปีที่แล้ว

      Hi @@hnasr , amongst NoSQL?

    • @squirrel1620
      @squirrel1620 3 ปีที่แล้ว

      Any MSSQL?

  • @bepurrlno
    @bepurrlno 3 ปีที่แล้ว

    hi

  • @ChristoPy_
    @ChristoPy_ 3 ปีที่แล้ว

    first

  • @ahmedayman7626
    @ahmedayman7626 3 ปีที่แล้ว

    Hi Hussein! Thanks for the great talk and content :)
    Can you provide me with an invite for your discord server as all the invites in the previous videos have expired?