10 Query Tuning Techniques Every SQL Programmer Should Know

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Komentáře • 31

  • @adityaroy452
    @adityaroy452 Před 3 lety +2

    Great, great watch. I won't say one would materialize on everything told here, but if you are confused on whether you should invest your time in this ~95 mins video, I would definitely recommend it!

  • @kenpat5
    @kenpat5 Před 8 lety +4

    Great Content! Learned quite a bit...

  • @anand94087
    @anand94087 Před 8 lety +5

    great presentation, very helpful. Thanks

  • @PrakashPraaku
    @PrakashPraaku Před 7 lety +1

    Thanks for this great video. Really helpful.

  • @yyyyyc
    @yyyyyc Před 8 lety +2

    Great Lecture !!

  • @hameed9104
    @hameed9104 Před 7 lety +1

    Excellent presentation ,Very Helpful

  • @adaylateacoinshort
    @adaylateacoinshort Před 9 lety +2

    Thanks for this. Very useful.

  • @mendalin123999
    @mendalin123999 Před 5 lety

    very nicely explained. do you have something for oracle.. please share

  • @SinskariBoi5guys66
    @SinskariBoi5guys66 Před rokem

    Advancing career in SE(PLSQL and Oracle, RDBMS) (Bucket list) at 30

  • @jupiterwar
    @jupiterwar Před 7 lety +1

    Great video indeed, I'm even thinking about put some subtitles so I could translate to the language of my Country....

    • @kevinkline2392
      @kevinkline2392 Před 5 lety

      If you do, please let me know and I'll spread the word on social media.

  • @temesgenneberu2054
    @temesgenneberu2054 Před 6 lety +1

    it is realy nice

  • @TheAguydude
    @TheAguydude Před 7 lety +2

    @1:16:22 - SQL 2016 adds STRING_SPLIT. Probably table-valued parameters are still better, though.

  • @okeyokafor648
    @okeyokafor648 Před 8 lety +1

    So when the estimated # of rows and actual # of rows have a huge difference due to outdated stats, would running UPDATE STATISTICS command take care of this?

  • @rambokhan7287
    @rambokhan7287 Před 9 lety +3

    @31.40 you did not do a dbccdropcleanbuffers, the second time you ran the query it got read from the cache that is why it went from 11sec to 4 sec.

    • @serhiizhadovets819
      @serhiizhadovets819 Před 9 lety +1

      First time they also were in buffer pool. Because when you insert rows these pages are put into puffer pool. They might be not on hard drive but definitely they will be in RAM

  • @dineshmanoharan2423
    @dineshmanoharan2423 Před 3 lety

    One thing I disagree is that Checkpoint doesn't clear bufferpool. It just writes the dirty pages to disk and mark them as clean pages in the buffer.

  • @mksktube
    @mksktube Před 8 lety +16

    It's kind of funny seeing the MS SQL guys using the Apple MacBook....

    • @amnindersokhi4817
      @amnindersokhi4817 Před 8 lety +5

      You should gain knowledge from them instead of making funn

    • @mksktube
      @mksktube Před 8 lety +2

      When you gain a fraction of my kNNowledge may learn to have some fuNN... Though doubt you'll get ever on my level, so begin learning to have funn... But sure your H1B visa is a prove of the top notch knowledge...

    • @necbranduc
      @necbranduc Před 8 lety

      I think you might need a new keyboard, your N seems to be doubling occasionally in your text. Also, I'd be very curious about your knowledge, I'd like to learn as well. Do you have a blog or somewhere you post your ideas, a fraction of your knowledge?

    • @mksktube
      @mksktube Před 8 lety

      Don't be too curious, I was ordering you in dozens and know exactly what you know...

  • @yiyuan6844
    @yiyuan6844 Před 7 lety +1

    MARK

  • @soarindragon603
    @soarindragon603 Před 4 lety

    I wonder if a case statement would fix the kitchen sink issue (1:07) if it's even still an issue. Something like this...
    1=case when @CustomerID is null then 1
    when Customer ID = @CustomerID then 1
    Else 0
    end

  • @jasonxu7191
    @jasonxu7191 Před 8 lety +1

    Good?

  • @americanexe
    @americanexe Před 6 lety +1

    SQL "programmer" LOL!

    • @erwinekkel9676
      @erwinekkel9676 Před 3 lety

      Sql is harder to get right then Javascript, c# or. Net.