How to Think Like the SQL Server Engine, Part 3: Statistics and Memory Grants

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  • Опубліковано 5 вер 2024

КОМЕНТАРІ • 13

  • @annlaosun6260
    @annlaosun6260 4 роки тому

    I have been googling all over the internet for a clear explanation of the query execution plan. You are the best!

  • @internetbrowsing899
    @internetbrowsing899 5 років тому +2

    Great refresher series ,Brent. Basics with clear explanation!!! please do more of these.

  • @LinkMassing
    @LinkMassing 6 років тому +1

    Brent, I thank you (and your past/present/future team) so very much for the knowledge you share!

  • @RichardTabar
    @RichardTabar 4 роки тому +1

    WA stands for Waterloo, Ontario Canada location of Sybase Inc which is where SQL came from.

  • @marcosoliveira8731
    @marcosoliveira8731 5 років тому +1

    at 15:44 Mr.Brent, you talk about local SSDs to put tempdb on.
    I bilieve that "...SQL Server´s plublic toilet.." will have a lot, and probably huge amount of data, coming in and out every second.
    If I´m correct, does the SSDs are up to the challange, since that they have a very limited lifetime of writing data?

    • @TheBrentOzar
      @TheBrentOzar 5 років тому

      Marcos - hmm, are you saying hard drives live forever?

    • @TheBrentOzar
      @TheBrentOzar 5 років тому +1

      @@marcosoliveira8731 sure, for consulting advice head to BrentOzar.com and contact us there. (Personalized architecture advice is obviously beyond the scope of what I can do in UA-cam comments.) Thanks!

    • @marcosoliveira8731
      @marcosoliveira8731 5 років тому

      @@TheBrentOzar First of all, thank you to for your time to talk about it. Not really.
      I meant the SSDs tend to have shorter lifetime than a HD when lots of reads and writes are envolved.
      The SAN that I´m usign rigth now uses SSDs to cache data and I´d like to propose to the SAN administrator that using this disks for tempdb could be a better option to increase speed and get rid of other issues.Once one disk presents a problem, is just a matter of swap it like any other disk. Often I think that, It seems, we will have to swap SSDs more often that a HD. So the whole idea is ruled out by the SANs admin.

    • @TheBrentOzar
      @TheBrentOzar 5 років тому +1

      @@marcosoliveira8731 OK, cool, sounds like you've got it all under control.

    • @marcosoliveira8731
      @marcosoliveira8731 5 років тому

      @@TheBrentOzar Thank you!

  • @corykeilig5183
    @corykeilig5183 6 років тому

    "Oh the jokes today" lmao

  • @maskoblackfyre
    @maskoblackfyre 5 років тому

    PSA with Brent:
    SQL Server doesn't like inappropriate touching.

  • @MartyPiecyk
    @MartyPiecyk 6 років тому

    SQL doesn't like inappropriate touching :D