FULL SQL DATABASE COURSE | Beginner to Intermediate in 1 Hour

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  • Опубліковано 30 тра 2024
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    ┋Timestamps┋
    00:00 Course outline
    03:11 Databases
    06:27 Queries, tables and keys
    09:39 Windows postgreSQL installation
    11:48 MacOS postgreSQL installation
    13:54 CREATE TABLE
    20:58 INSERT INTO
    24:37 SELECT, WHERE, AND & OR
    28:49 IN, NOT IN, IS NULL, BETWEEN
    32:32 ORDER BY, LIMIT, DISTINCT and Renaming columns
    35:09 EXTRACT
    36:21 UPPER, LOWER, LENGTH, TRIM
    38:30 Concatenation, Boolean expressions and Wildcards
    43:02 SUBSTRING, POSITION, COALESCE
    46:11 MIN, MAX, AVG, SUM & COUNT
    48:16 GROUP BY & HAVING
    52:05 CASE (with GROUP BY and for transposing data)
    56:18 JOIN & UNION
    1:02:31 Subqueries
    1:07:15 Bonus - 30 day moving total
    1:09:34 Outro
    ┋Files┋
    Github repo for code ➡︎ github.com/mochen862/full-sql...
    Install pgAdmin (Windows & Mac) ➡︎ www.postgresql.org/download/
    Thanks so much for taking a little time out of your day to watch this!

КОМЕНТАРІ • 251

  • @dianastryzhak6392
    @dianastryzhak6392 Місяць тому +1

    I love the video! It is a change of scenery after boring SQL classes at uni! Can't wait for the new one :)

  • @alvocommunity1940
    @alvocommunity1940 3 місяці тому +1

    Very goog lesson, Mo Chen!!!
    I'm brazilian beginner in SQL.

  • @bbcg0420
    @bbcg0420 7 місяців тому +3

    i came from your excel tutorial playlist and now I'm here in sql! thank you so much for putting an effort to help us in this journey, it's very much appreciated 🙏

  • @stluke324
    @stluke324 3 місяці тому

    Thanks Mo. Watched this before I did a certification course in Coursera and it was a breeze. Thanks again!

  • @goodboyvincenzo
    @goodboyvincenzo Рік тому +35

    Really appreciate the effort you put into this! It's hard to walk this journey alone but because of people like you things are easier to handle 🙏 Would love to see some advanced SQL as well!

    • @mo-chen
      @mo-chen  Рік тому +13

      Hey Larissa 👋 Thanks so much for watching! I will for sure make an advanced SQL course, hopefully soon rather than later 😃

  • @kingofaz2011
    @kingofaz2011 Місяць тому

    Thank you for this great lesson. very well laid out and good pace. I'll be able to refer back to this for a very long time.

  • @asafzilberberg6648
    @asafzilberberg6648 4 місяці тому

    Great tutorial - thank you

  • @lenheimsy
    @lenheimsy 9 місяців тому +1

    This is very helpful! Thanks for putting this all out! ❤

    • @mo-chen
      @mo-chen  9 місяців тому

      I’m glad you liked it! Thanks for watching 😃

  • @lester_cch9877
    @lester_cch9877 Місяць тому

    Thank you so much for your tutorial. You don't know hou much this helps me in my professional carreer. Best!

  • @mariannedelarosa8896
    @mariannedelarosa8896 Рік тому +2

    Thank you, Mo! This tutorial is awesome, you're an inspiration!

    • @mo-chen
      @mo-chen  Рік тому +1

      Thanks so much Marianne for the kind words 😃

  • @johnadoga9765
    @johnadoga9765 7 місяців тому +1

    Great video, it's almost everything a beginner to SQL hopes to find, thank you Mo

    • @mo-chen
      @mo-chen  7 місяців тому

      Glad it was helpful!

  • @sandipkadam6041
    @sandipkadam6041 21 день тому

    Very nice explanation.... Great 👍

  • @Mikoaj-ie6gt
    @Mikoaj-ie6gt 9 місяців тому +2

    thanks Mo, this is really good reminder about SQL basics that I used for my hiring test!

    • @mo-chen
      @mo-chen  9 місяців тому +1

      I'm glad you found it useful, thanks for watching 😁

  • @theretroman3862
    @theretroman3862 5 місяців тому

    Great one! Much appreciated!

    • @mo-chen
      @mo-chen  5 місяців тому +1

      Glad it helped! Thanks for watching 😁

  • @zhouyangh6252
    @zhouyangh6252 8 місяців тому +1

    What an amazing video!!! Thank you so much Mo! I couldn't wait for the next Intermediate to Advanced!

    • @mo-chen
      @mo-chen  8 місяців тому

      I’m glad you liked it! Hopefully I’ll get to make the intermediate and advanced soon 😃

  • @ahmadrazachohan365
    @ahmadrazachohan365 7 місяців тому

    Amazing work Mo! Thank you for all the hard work you put into this project. This is really quite helpful 🙏

    • @mo-chen
      @mo-chen  7 місяців тому

      Glad you enjoyed it!

  • @michaelkirkby6306
    @michaelkirkby6306 3 місяці тому

    Thank you very much fior a succinct and informative demonstration.

  • @TuMaLife
    @TuMaLife Рік тому +33

    I’ve learnt more from Mo than attending actual classes… 👏🏾👏🏾

    • @mo-chen
      @mo-chen  Рік тому +4

      I'm so glad you found the video useful, thanks a lot for watching 😄

    • @Dennisaj
      @Dennisaj 7 місяців тому +2

      For real…
      Isn’t it sad that UA-camrs can teach better than actual TEACHERS and they teach it for FREE!!!

    • @julianwilliams3721
      @julianwilliams3721 Місяць тому +1

      @@Dennisaj yea, I just wish recruiters would value non-college learning as much as a degree

  • @kennylaucw
    @kennylaucw 10 місяців тому +7

    Really helpful! Previously took a sql course on coursera, and this video helps me consolidate what I learnt and clear some more complicated concepts. Thank you!

    • @mo-chen
      @mo-chen  10 місяців тому

      Thanks for watching, I'm glad you found the video useful 😃

  • @aidar7066
    @aidar7066 Рік тому +1

    Great work! Thats exactly what i needed

    • @mo-chen
      @mo-chen  Рік тому +1

      I'm glad you liked it Aidar 😁 Thanks a lot for watching!

  • @mohamedabdelmenem7810
    @mohamedabdelmenem7810 Рік тому +19

    What a great video !🔥🔥
    I am just beginning my way to become a data analyst and your tutorial is absolutely amazing❤
    I hope that this tutorial is just the beginning and you will upload tutorials for rest of the roadmap (Excel, tableau, Power BI,....etc)

    • @mo-chen
      @mo-chen  Рік тому +8

      Thank you so much for watching! I really hope so too that I’ll be able to make more tutorials like this 😃

  • @tonmanntom4239
    @tonmanntom4239 Рік тому +2

    yooo thanks 4 the work you put in this one! Cheers & keep it up 🤘😔🤘

    • @mo-chen
      @mo-chen  Рік тому

      No problem at all, thank you for watching 😃

  • @Svgcibay
    @Svgcibay 7 місяців тому

    I thank you very, very much. you guided me on my way to data analyst. my english is not very good, I hope you understand me. the video was great, I analyzed all the examples. 👍👍👍👍👍👍

  • @LokeshBiradar63
    @LokeshBiradar63 9 місяців тому +1

    Most of the things covered in an one hour video. Thank you!

    • @mo-chen
      @mo-chen  9 місяців тому +1

      I’m glad you found it useful! Thanks a lot for watching 😃

  • @ikhsanudin3309
    @ikhsanudin3309 Рік тому +1

    This is great! thank you Mo

    • @mo-chen
      @mo-chen  Рік тому

      Thank you for watching, I’m glad you liked the video!

  • @fk4866
    @fk4866 11 місяців тому +1

    Thank you for so many visuals! Thats' what I needed for sure

    • @mo-chen
      @mo-chen  11 місяців тому

      I'm glad you liked the video F K! Thanks a lot for watching 😃

  • @jmmj5018
    @jmmj5018 7 місяців тому +1

    thanks for this MO. thanks for taking the time to post this and help a lot of people.

    • @mo-chen
      @mo-chen  7 місяців тому

      Glad it was helpful!

    • @jmmj5018
      @jmmj5018 7 місяців тому

      @@mo-chen really grateful. 🙏😊you have simplimfied things that were quite vague to me in my other resources. Bless you more. :)

  • @fgbvibeshot9196
    @fgbvibeshot9196 Рік тому +1

    Thank you for this. I will watch this now. Keep on sharing my friend - Glenn

    • @mo-chen
      @mo-chen  Рік тому

      Thanks so much for watching 😃

  • @emersonsilva4955
    @emersonsilva4955 Рік тому +2

    Thank you so much! You are doing a great work.

    • @mo-chen
      @mo-chen  Рік тому

      Thank you so much for watching Emerson!

  • @franciscomedinav
    @franciscomedinav Рік тому +1

    Great tutorial!!
    Thank you!!!

    • @mo-chen
      @mo-chen  Рік тому

      I'm glad you liked it Francisco! Thanks for watching 😃

  • @marcusthompson6775
    @marcusthompson6775 11 місяців тому +2

    This is such a well made and helpful video...Thank you for taking the time to do this. You are such a talented teacher! I look forward to your future videos. THANK YOU!

    • @mo-chen
      @mo-chen  11 місяців тому

      Thanks so much for the kind words and for watching 😁

  • @nareshkumar-cn6jo
    @nareshkumar-cn6jo Рік тому +3

    Great video to learn....Great work brother ....

    • @mo-chen
      @mo-chen  Рік тому

      Thanks a lot for watching Naresh 😃

  • @thebook9695
    @thebook9695 4 місяці тому

    I want to thank you for creating this amazing tutorial. I just finished my Google Data Analysis Course on Coursera and found this very useful and well-explained. Can't wait to start with a job hunt. Thank you again, you don't have an idea how helpful your tutorial was for me.

  • @wvandrooge
    @wvandrooge Рік тому +8

    Great to see you actually put a course about this online! Thank you for your efforts. I'd like to do a suggestion: is it possible for you to make a course intermediate to advanced SQL for people like me? I have some issues finding a structured course on for this level on SQL online and I think you would be a great person for me to learn from! :)

    • @mo-chen
      @mo-chen  Рік тому +9

      Hi Wijnand, great suggestion! I will certainly release a 2nd course on advanced SQL queries, just don't exactly know when yet (hopefully within the next 2-3 months). Thank you so much for watching 😃

  • @abdusinc2557
    @abdusinc2557 8 місяців тому +1

    Thank you so much. You channel has been incredibly valuable to me as I begin my journey in analytics. I've learned from from you than I have in school. Your videos inspire to keep working hard and you make it easy to learn with you. May God bless you for sharing your knowledge.

    • @mo-chen
      @mo-chen  8 місяців тому

      Great to hear! Thanks so much for watching 😁

  • @ursugar_
    @ursugar_ Рік тому +3

    Thank you so much, absolutely wonderful

    • @mo-chen
      @mo-chen  Рік тому +1

      I'm glad you liked it, thanks so much for watching 😄

  • @Loicmartins
    @Loicmartins 9 місяців тому +1

    Thanks you very much for your work!

    • @mo-chen
      @mo-chen  9 місяців тому

      Thanks so much for watching, I'm glad you liked it 😁

  • @Anj-dh9mc
    @Anj-dh9mc Рік тому +2

    Thank you for your effort in doing this SQL database course Mo. I'm already at the capstone module of Google's DA course and still a bit lost. I kinda understand how SQL works now, especially the primary, foreign and composite keys.

    • @mo-chen
      @mo-chen  Рік тому

      Hi Anj 👋 I’m glad you liked the video, thanks a lot for watching!

  • @newyork_life_travel
    @newyork_life_travel Рік тому +1

    great video! thanks!

    • @mo-chen
      @mo-chen  Рік тому

      Thank you for watching 😃

  • @gabby_asiedu21
    @gabby_asiedu21 6 місяців тому

    Well done for such a great work. I think the speed was high so I suggest you break the video into topics such that you will take your time to explain very well. More grease to your elbow. Great video❤

  • @maricruz3266
    @maricruz3266 Рік тому +13

    I was literally about to ask you if you could do this!!! So far your videos have been so great. I love how you explain everything as we go along. 🎉 I'll let you know what I think! 😊

    • @mo-chen
      @mo-chen  Рік тому +1

      Thanks a lot Maricuz!

  • @davidvo2722
    @davidvo2722 Рік тому +1

    thank you so much. Applying to new job and have been studying all your videos!

    • @mo-chen
      @mo-chen  Рік тому +1

      Hi David 👋 I'm glad you find the content useful! Thanks for watching 😃

  • @The_GrowthChannel
    @The_GrowthChannel Рік тому +2

    Thank you Mo, you are doing awesome

    • @mo-chen
      @mo-chen  Рік тому

      Thanks so much for sticking around on the channel 😃 I'm very glad you're still here!

  • @ed684
    @ed684 8 місяців тому +1

    Thank you so much! You helped me learn faster for my university exam

    • @mo-chen
      @mo-chen  8 місяців тому

      Glad I could help! Good luck with your exam 😁

  • @leoCarCampos
    @leoCarCampos Рік тому +1

    great content Mo!

    • @mo-chen
      @mo-chen  Рік тому

      Thanks a lot for watching Leonardo!

  • @bigbri04
    @bigbri04 6 місяців тому

    Great Video. Very useful and easy to understand.

    • @mo-chen
      @mo-chen  5 місяців тому

      Glad it was helpful!

  • @prashlovessamosa
    @prashlovessamosa Рік тому +1

    Awesomely Explained.

    • @mo-chen
      @mo-chen  Рік тому

      I'm glad you liked it Prashant 😁 Thanks a lot for watching!

  • @karthiksk2962
    @karthiksk2962 11 місяців тому +1

    Great content, so many topics covered in just 1 hour.

    • @mo-chen
      @mo-chen  11 місяців тому

      Thanks a lot for watching, I'm glad you liked it 😃

  • @annushka7778
    @annushka7778 Місяць тому

    Thankyou ❤1 hour of clear information intead of 450 hours of unclear info on other platforms that only waste your time

  • @kaiokhan2837
    @kaiokhan2837 Рік тому +2

    thank you for your time and effort
    amzing video , you will blow up soon !

    • @mo-chen
      @mo-chen  Рік тому +1

      Thanks so much for watching!

  • @carlosfernandez6477
    @carlosfernandez6477 11 місяців тому +1

    Very useful video, really liked how visual everything was

    • @mo-chen
      @mo-chen  11 місяців тому

      That’s great, thanks so much for watching!

  • @timothykimari8154
    @timothykimari8154 4 місяці тому

    thankyou sir for this

  • @ablayendiaye7223
    @ablayendiaye7223 7 місяців тому

    Thanks so much. You really help me finding a good roadmap to learn SQL. I will appreciate a lot other tutoriels like this one in Power BI and Excel if it's possible.

    • @mo-chen
      @mo-chen  7 місяців тому

      Glad it was helpful!

  • @UniParse
    @UniParse 8 місяців тому +1

    thanks MOCHEN 😄😁🥰!!
    even though am not Data Analyst,
    but as full-stack web dev,
    this 70min saved weeks of my time,
    so I will contribute to this repo,
    by pulling request,
    with improved readability commit,
    and png screenshot of tables.

    • @mo-chen
      @mo-chen  8 місяців тому

      Thanks so much for improving the readability 🙏 I’ll quickly review it when I get the chance. I’m glad the video helped you learn faster 😃

  • @johaybersarip7856
    @johaybersarip7856 Рік тому +2

    I really like the video tutorial you saved in your channel, I will watch again the tutorial for the second time for me to master the basic concept. Thank you very much for these lectures. Have a great day and and keep on posting educational videos/lectures about Data science.

    • @mo-chen
      @mo-chen  Рік тому

      I'm very glad you like the content Johayber 😄Thanks so much for watching!

    • @johaybersarip7856
      @johaybersarip7856 Рік тому

      @@mo-chen You're welcome sir I want to become a Data Scientist as because I need this to my field as a chemistry student

  • @angelocastilloperz
    @angelocastilloperz Рік тому +1

    I love your content friend, greetings from Perú.

    • @mo-chen
      @mo-chen  Рік тому

      Thanks a lot for watching Angelo 😁

  • @ChimdikeOjo-david-ml4wj
    @ChimdikeOjo-david-ml4wj Місяць тому

    Hello mr Chen thank you so much for your videos 🙏🏿..I am an aspiring Data analyst planning to explore
    A secondary School student from Nigeria.. hoping to learn more things from your tutorials sir😊

  • @mechanosys
    @mechanosys Місяць тому

    I am not from IT, age 54 and Mechanical Engineer with 30 years experience in Plant Maintenance. I am learning with your instructions and the video step by step. Same way I have learnt Python, HTML5, CSS, JS, NodeJS, Docker, VSCode, C#, MySQL, PostgreSQL, MongoDB, Git and GitHub, NoSQL, etc. and I am still looking for new things to be learned ! Thank you from India, for the simple and easy to follow videos.

  • @harshadasathe6477
    @harshadasathe6477 8 місяців тому

    Great explanationn❤❤❤❤ , You are great teacher , i am learning so much from your channel , waiting for more videos

    • @mo-chen
      @mo-chen  7 місяців тому

      Thank you for the kind words!

  • @kurosawa1004
    @kurosawa1004 9 місяців тому +1

    New subscriber, thank you

    • @mo-chen
      @mo-chen  9 місяців тому +1

      I’m glad you liked it, thanks for the sub 😃

  • @JoaoSantos-dg7xm
    @JoaoSantos-dg7xm Рік тому +1

    Hi there, nicely done with the tutorials. Bring it more, im seriously interesting in Data Science. Working with pandas and numpy at the moment Cheers :)

    • @mo-chen
      @mo-chen  Рік тому

      All the best with your data science journey! Thank you so much for watching 😄

  • @grapefruitomega3517
    @grapefruitomega3517 Рік тому +2

    Top stuff 🎉

  • @joephiliph12
    @joephiliph12 2 місяці тому

    Excellent tutorial even if the speed is so fast......

  • @Zeenrialor
    @Zeenrialor 9 місяців тому +2

    Please make more videos like this on other coding language like java.. I love this.. Thanks bro..

    • @mo-chen
      @mo-chen  9 місяців тому

      I would love to when my time allows it 😁 Thanks so much for watching!

  • @amindouale829
    @amindouale829 6 місяців тому

    thank you very much...

    • @mo-chen
      @mo-chen  5 місяців тому

      Thanks for watching!

  • @ZakiXcx
    @ZakiXcx Рік тому +1

    great work

    • @mo-chen
      @mo-chen  Рік тому +1

      Thanks so much for watching Zaki 😄

  • @nav5991
    @nav5991 Рік тому +2

    Thankyou so much... Please also cover cte and window fxns too🎉🙌

    • @mo-chen
      @mo-chen  Рік тому +1

      I’m glad you liked it! I will try my best, there will be more sql videos coming for sure 😃 Thanks a lot for watching!

  • @008-memanishankarjha6
    @008-memanishankarjha6 5 місяців тому

    Thanku Sir

  • @valeriaholovchyk4766
    @valeriaholovchyk4766 Рік тому +1

    Great 🎉🎉

    • @mo-chen
      @mo-chen  Рік тому

      Thank you for watching Valeria 😁

  • @revanthrevanth6948
    @revanthrevanth6948 9 місяців тому +2

    16:55 When Mo turned into a Sigma!!!! and great tutorial by the.

    • @mo-chen
      @mo-chen  9 місяців тому

      I'm glad you liked it! Thanks a lot for watching 😁

  • @bngleboy
    @bngleboy 9 місяців тому

    Hi Mo!
    Great! I'm learning a lot. Thanks for making database understanding very easy!
    Question, do you have these data available for your audience in any separate file (like excel or any other format) ?
    You guessed it, I'm thinking of copying those data and use... :)

    • @mo-chen
      @mo-chen  9 місяців тому +1

      Thanks a lot for watching! I don't have the data in Excel format, but you can easily export your tables to CSV format using postgres CLI (command line interface).

  • @Bee-The-Explorer
    @Bee-The-Explorer Рік тому +2

    Hi Mo, great explanation. Thanks for this. Can you also do a comparation between Tableau vs Power BI and the one you would prefer? looking forward for more content!!!!! 🙌🏻

    • @mo-chen
      @mo-chen  Рік тому +1

      Thanks so much for watching! It's a great video idea 😁

  • @santilo76
    @santilo76 Рік тому +1

    Wow, i have not seen it yet, but thanks in advance for your contributions to this community. Cheers Mo

    • @mo-chen
      @mo-chen  Рік тому

      Thank you santilo76 😁

  • @aloSolo
    @aloSolo 2 місяці тому +2

    where do you i get the sql file to follow along?

  • @IAmLove213
    @IAmLove213 7 місяців тому

    Invested so much money into a Master program to only come out feeling lost and uneducated. You are amazing and make me feel like I can do it. Thank you for all of your knowledge, skills, and time putting this together. ❤New subscriber here!

    • @mo-chen
      @mo-chen  7 місяців тому

      Great to have you here on the channel!

  • @gabrielmaria295
    @gabrielmaria295 Рік тому +1

    good job....

    • @mo-chen
      @mo-chen  Рік тому

      Thank you for watching 😃

  • @thiagonazario2145
    @thiagonazario2145 6 місяців тому +1

    amazing

    • @mo-chen
      @mo-chen  5 місяців тому

      Glad you think so!

  • @zabashhd459
    @zabashhd459 8 місяців тому

    You are Amazing Although i am also learnign SQL from Coursera UC Davis

    • @mo-chen
      @mo-chen  8 місяців тому +1

      Thanks a lot for watching and good luck with your sql learning 😁

    • @zabashhd459
      @zabashhd459 8 місяців тому

      Thanks !!!!@@mo-chen

  • @i.d.8737
    @i.d.8737 7 місяців тому +2

    finally a hot SQL teacher

    • @mo-chen
      @mo-chen  7 місяців тому

      Thank you!

  • @dwzard
    @dwzard 6 місяців тому

    Hi Moe! Thanks for this but whe I copy that entire cope and press run but it doesnt show the table? that should easily show the table right?

  • @rojaskhobragade4882
    @rojaskhobragade4882 4 місяці тому

    Plz make video on Power Bi also

  • @robinbogwald4514
    @robinbogwald4514 11 місяців тому +1

    Hi Mo!
    Great video!
    I didn't quite catch how you imported the excel file to PostreSQL. Because you have to import a cvs file or something in advance to do the things you are doing in the video? Or did you make the dataset with the codes? There is something I don't understand about coding, and it's not the codes, but rather how you import your own specific data into these programs.
    It's possible that I have expressed myself poorly, and I apologize for that.
    But what I'm wondering is if you have already loaded the Excel sheet you're showing on the right side, or if you simply create the table and the data in the table.
    Thank you in advance!

    • @mo-chen
      @mo-chen  11 місяців тому +2

      Hi there, I didn't import any Excel files in this video. All the code is available in the github repo (create tables, insert values, and all other queries). I left the link in the description box. Thanks a lot for watching 😁

    • @robinbogwald4514
      @robinbogwald4514 11 місяців тому +1

      @@mo-chen Ok! Thank you for your help , and quick response! Keep up the videos, they are really good :)

  • @weekendveda6359
    @weekendveda6359 Рік тому +1

    Thanks u

    • @mo-chen
      @mo-chen  Рік тому

      Thanks a lot for watching!

  • @prashlovessamosa
    @prashlovessamosa Рік тому +1

    Completed kindly make another one a Advanced one please it would be helpful.

    • @mo-chen
      @mo-chen  Рік тому

      I will for sure make a course on advanced SQL queries just not exactly sure when yet 😅

  • @monicakristin8144
    @monicakristin8144 5 місяців тому

    tq

  • @javelynhazeldine1847
    @javelynhazeldine1847 7 місяців тому

    I'm at 57:48, and kinda stuck INNER JOIN as it's suddenly s.coffeeshop_name,.. (I don't full understand the "alias" and how it named like that "s.coffeeshop"). It took a while before I figured it out through w3school. As a beginner, I would suggest you to go through/add this part in the future tutorial, as it's fundamental before moving on to a more complex code.
    It also could be that I have no previous coding experience so it was confusing at first try LOL

  • @aartibarve8680
    @aartibarve8680 6 місяців тому

    Thank you so much for all the amazing work! I cant access the git repo for code. Can you please help me with that?

  • @assyifamulandar3904
    @assyifamulandar3904 3 місяці тому

    Hi, Mo. I have a trouble. When I run the SELECT * FROM employees, why my all of my coffeeshop_id (FK) is still filled with null(s) in each employee?

  • @user-re4ip5ms9w
    @user-re4ip5ms9w 2 місяці тому

    question for length how can you then look at the max length of the email without having an error that says
    column "email_length" does not exist
    example
    SELECT email, LENGTH(email) AS email_length, Max(email_length)
    FROM employees

  • @rehabramadan7613
    @rehabramadan7613 8 місяців тому

    Hi mo l had done 3projects of Excel and your project that you shared in another video now how can get just the data and do it by my self

  • @heyrosanna
    @heyrosanna 24 дні тому

    Do you think a person needs strong math skills to be a day analyst and eventually make it to 200K+? I am a fast learner but never really liked school so my math skills are really good when it comes to everyday computations. I almost never need a calculator but barely passed statistics in college mostly due to ADHD and not learning well in a structured setting.

  • @sarwaraghbar3322
    @sarwaraghbar3322 6 місяців тому

    Could someone tell me why he uses a 23:13 update instead of directly inserting all the data into the table through 'insert into'?

  • @user-re4ip5ms9w
    @user-re4ip5ms9w 2 місяці тому

    I have been using ssms, what's the difference with PostgreSQL? and will my knowledge of ssms apply to PostgreSQL?

  • @yingwang3771
    @yingwang3771 10 місяців тому +1

    Hi Mo, really grateful to find your training video 😊 I am brand new to SQL, had to ask how was data get transferred into SQL to create the table please? I have followed all the coding steps but no table was created. I must have missed an important step here…. Could you please help.xx

    • @mo-chen
      @mo-chen  10 місяців тому

      Hi there 😃 If you follow the code exactly sequentially, then you should definitely have your tables created. Could you please try again from the beginning?

  • @gktgknr
    @gktgknr 3 місяці тому

    5:34 this mail names are kinda sussy, i liked that lol

  • @javelynhazeldine1847
    @javelynhazeldine1847 7 місяців тому

    At 1:05:04, I want to use this subquery to find all the coffee shop in US, here is the code I wrote:
    SELECT coffeeshop_name
    FROM SHOPS
    WHERE city_id IN (select city_id
    from locations
    where country = 'United States');
    For some reason, this returned with coffeeshop_id 1,2,3,4 (including United Kingdom coffeeshop) and 5 is missing (5 also belong to US)
    Just wondering where did I go wrong from here. I apprecited if you could look at the above code) :(

  • @cheuguy
    @cheuguy Рік тому +1

    Where do you get your tshirts? Im looking for some oversized one like the one you’re wearing and it seems like a great fit!

    • @mo-chen
      @mo-chen  Рік тому

      Funny enough you’re not the first one to ask this 😃 The brand is called Uniqlo, and they’re really affordable and good quality.

  • @Andy_TKC
    @Andy_TKC Рік тому +1

    Thank you Mo, luv 😊What do you think of 'Orange Data Mining'?

    • @mo-chen
      @mo-chen  Рік тому

      Thanks for watching Andy! I've never used orange data mining, but just googled it and it looks fun 😄

  • @sportspsycho2279
    @sportspsycho2279 5 днів тому

    Where can I get this 24:26 data to put into the query..?

  • @Josh034
    @Josh034 Рік тому

    So I’m following along with the tutorial . When I insert the dates specifically I keep getting Error: date/time field value out of range: “29/08/2016”
    Hint : perhaps you need a different “datastyle” setting.
    Sql state: 22008
    Character: 239
    I’m using data type DATE for the hire_date definition so I don’t understand

    • @Josh034
      @Josh034 Рік тому +2

      My date style was ISO,MDY i formatted the hire dates this way and it worked.

    • @mo-chen
      @mo-chen  Рік тому

      Nice one Josh! Good job figuring it out 😁