MySQL tutorial 9 - Count, Sum and Average

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  • Опубликовано: 15 ноя 2024

Комментарии • 40

  • @krontexpit
    @krontexpit 6 лет назад +1

    So hard to find good MySQL tutorials on RUclips. Glad to say I don’t have that problem anymore! I am now subscribed.

  • @livefreeskatehardcom
    @livefreeskatehardcom 6 лет назад +2

    Your lessons are amazing, I actually played with wildcard in the example. Good job!!

  • @charliepickles7854
    @charliepickles7854 6 лет назад

    Thank you Quentin! After I managed to export my dissertation dataset as a CSV file from SPSS I have been using your tutorials to run queries on my data on MyPHP. They are to the point and really helpful and i will definitely recommend.

  • @randyaldean3815
    @randyaldean3815 6 лет назад +1

    Great video! Most MySQL tutorials are over twenty minutes. Nice to find a simple one.

  • @henryacheampong7063
    @henryacheampong7063 Год назад +1

    Thanks... really saved me🙏

  • @topdigitalsolutions8688
    @topdigitalsolutions8688 2 года назад

    You solved my problem. Thank you.

  • @mykhailorozantsev8312
    @mykhailorozantsev8312 5 лет назад +1

    You are the best one! Thanks for the lesson!

  • @ananya9356
    @ananya9356 3 года назад

    this is sooo amazing and helpful. thank you

  • @nv4293
    @nv4293 7 лет назад +8

    You say to not mess up the BRACKETS after COUNT...but those are PARENTHESIS!
    Haha just kidding. Good videos. Thank you!

  • @hollywoodbollywoodwebserie811
    @hollywoodbollywoodwebserie811 5 лет назад +1

    Thankyou sir👍👍👍

  • @naffetiahmed7855
    @naffetiahmed7855 6 лет назад +1

    Thank You&Good job

  • @firzanaufalalift4288
    @firzanaufalalift4288 3 года назад

    thanks buddy

  • @mojostrowinsky5235
    @mojostrowinsky5235 4 года назад +1

    subscribed

  • @charliecharlie6862
    @charliecharlie6862 6 лет назад +1

    How about summing up query that has the same entry name in the table?a lot of the same entry name that i need to sum up the specific column.

  • @fatini6952
    @fatini6952 3 года назад

    may i know how do i display the result? tq

  • @deepakpoddar3097
    @deepakpoddar3097 3 года назад

    Dear sir. I want to sum four table quantity column additions and one table quantity column substraction php? How they done it?

  • @UnmeshBane
    @UnmeshBane 4 года назад

    How do I add a column which is sum of other two columns

  • @sheet-happens
    @sheet-happens 4 года назад

    how to auto increment value on its own in a single row? example i have 1 then i want to make it 2 like 1+1 = 2

  • @sarveshkapoor7177
    @sarveshkapoor7177 6 лет назад

    how to use join bro

  • @anshjain257
    @anshjain257 5 лет назад

    How to make udf for count

  • @kimdominic1863
    @kimdominic1863 2 года назад

    Hi I want to do fiction SUM with numbers with commas but the results add the first two numbers like 1,000 +1,000 will give a 2 pls help.

  • @paulhudson4810
    @paulhudson4810 4 года назад

    I was getting an error because of the space. As soon as I hit "Play" here, I paused it, went back, removed the space, came back and it worked, even so I went on watching because why not and sure enough, right after a minute you mentioned the space after "COUNT" lol little things that make you pull your hair out smh

  • @khnhp1729
    @khnhp1729 6 лет назад

    So, how can I get that sum value in C# programming?

  • @BlockchainDaddy
    @BlockchainDaddy 6 лет назад

    Cheers!

  • @ixaazan1696
    @ixaazan1696 5 лет назад

    how can we save arthmetic operations between two columns in next column of same table in sql...any guides ?

    • @QuentinWatt
      @QuentinWatt  5 лет назад

      Try reading up on inner joins as column_name

  • @briantaca
    @briantaca 2 года назад

    it sinks well

  • @bbtechno
    @bbtechno 4 года назад

    Hi i need Hélp please

  • @ianwarren3340
    @ianwarren3340 6 лет назад

    Does anyone know how to use the count function to count the number of blue lightsabers for example? as opposed to counting the total product names?

    • @projohnas
      @projohnas 5 лет назад

      Late answer but if you didnt find an answer for that just do.
      SELECT COUNT(`Items`) FROM Shop WHERE Items = 'Blue_Lightsaber'

  • @mehrdadfarshiahmadi6771
    @mehrdadfarshiahmadi6771 6 лет назад +2

    FIZZ main btw 💤

  • @nilsaha8021
    @nilsaha8021 6 лет назад

    Didn't see any problem when I used count not COUNT.

  • @marcosmillet7957
    @marcosmillet7957 6 лет назад

    Ugh I can't figure out why I can't do SUMs or AVG...
    I've tried many variations, including:
    SELECT SUM('supplier_number_of_products') FROM 'supplier'
    Don't judge me on the name of column, but the column name and table is correct. The column 'supplier_number_of_products' is set as SMALLINT(4) in the structure, so I can't figure out why this aint' working...
    Anyone? :-(

    • @ianwarren3340
      @ianwarren3340 6 лет назад

      does this work: SELECT SUM('supplier_number_of_products') FROM `supplier`
      using ` ` instead of ' ' for supplier

  • @ВадимПетров-в9ц
    @ВадимПетров-в9ц 4 года назад

    0:22