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MySQL SELF JOINS are ... ughhh 

Bro Code
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#MySQL #tutorial #course
00:00:00 example 1
00:05:44 example 2
00:00:00 conclusion
SELECT a.first_name, a.last_name,
CONCAT(b.first_name," ", b.last_name) AS "reports_to"
FROM employees AS a
INNER JOIN employees AS b
ON a.supervisor_id = b.employee_id;

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4 ноя 2022

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Комментарии : 41   
@BroCodez
@BroCodez Год назад
SELECT a.first_name, a.last_name, CONCAT(b.first_name," ", b.last_name) AS "reports_to" FROM employees AS a INNER JOIN employees AS b ON a.supervisor_id = b.employee_id;
@israelrodriguez331
@israelrodriguez331 6 месяцев назад
Your explanations are on point. My professor is pretty much like “Figure it out yourself, look at the PPT” SMH.
@MrTekniqs
@MrTekniqs Месяц назад
Most of my college education right here. “Hey guys we’re going to learn Java. Here’s a piece of paper with some code. I’m a math teacher good luck.”
@MrBicholino
@MrBicholino 8 месяцев назад
Best self join explanation I've found so far. 10/10!!!
@dankprogrammingmemes7807
@dankprogrammingmemes7807 Год назад
Thanks a ton for making this series! Subbed!!
@joe-hd3uv
@joe-hd3uv 8 месяцев назад
Dude this was so incredibly helpful. Thank you!
@jina5920
@jina5920 3 месяца назад
You're the best teacher ever !!!! I really appreciate your work for us!!!
@ubaidullah6744
@ubaidullah6744 10 месяцев назад
Its a great video easy to understand Thank you, some people over explain things that makes it over complicated but after watching this video it looks pretty simple now.
@Lulu-ck3ji
@Lulu-ck3ji Год назад
a chad in explaining. Thanks much!
@johnvak7390
@johnvak7390 4 месяца назад
thank you for explaining!
@ShaikMoAbdullah
@ShaikMoAbdullah 3 месяца назад
This was awesome. Thank you
@Blujay188
@Blujay188 Год назад
EXCELLENT EXPLANATION ! thank you
@methanesulfonic
@methanesulfonic 11 месяцев назад
I'm pretty sure my teacher will somehow over-complicate this course if they ever teach this lol.
@edwardtattersfield3033
@edwardtattersfield3033 Год назад
Bro, nice vid. ONE QUESTION! What keyboard shortcut are you using to track to the beginning of a word? As you have done it makes more sense for me to type the column and THEN the table even though sql syntax requires this info in the opposite order. The shortcut would make it easier - i cant find it online.🙏
@justinprice1929
@justinprice1929 Год назад
He's probably using Ctrl+'any-arrow-key' for PC, and it would be Command+'any-arrow-key' for Mac.
@chngdexter2008
@chngdexter2008 2 месяца назад
Your explanation is awesome!
@niru216
@niru216 3 месяца назад
Thanks! joins were pain until I found you
@callofdutymlgversion910
@callofdutymlgversion910 Год назад
truly and bro coder appreciate it bro
@ExiltedOne
@ExiltedOne Год назад
thank you that was great!
@dolodoowop1971
@dolodoowop1971 11 месяцев назад
SO helpful.. thank you !
@hiwab41
@hiwab41 Год назад
nice BRO!
@riasingh11
@riasingh11 Месяц назад
best video on self join
@omega_sine
@omega_sine Год назад
I never knew Mrs. Puff’s first name was Poppy 🤯
@Lulu-ck3ji
@Lulu-ck3ji Год назад
same lol
@MaedehDehghan-vx6hx
@MaedehDehghan-vx6hx 2 месяца назад
that was practical. thanks
@nikoprieto1
@nikoprieto1 11 месяцев назад
How can i change my screen to see the same way you do? Pleaseeeee. Thanks for your video!
@vishwanathchintala2000
@vishwanathchintala2000 8 месяцев назад
you are amazing
@CodeWithDF
@CodeWithDF Год назад
u are great but can u do tut for website full course
@user-gh1tk2dc3l
@user-gh1tk2dc3l 6 месяцев назад
Thanks Bro
@mezomezo8718
@mezomezo8718 Год назад
I have a question which making me not getting this whole self join thing why couldn't we refer our join condition on table A customer ID =table 2 manager ID why did we have to refer to the foreign key of the first table instead of the primary key.your answer is greatly appreciated.
@szymonbernasiak7526
@szymonbernasiak7526 4 месяца назад
super easy and helpful
@princeakinolaoluwagbemigag1750
Top 10
@muratemredemircioglu2897
@muratemredemircioglu2897 3 месяца назад
i am a beginner... We have to create employee ids such a way that when we write the code, it has to point the correct way right? I mean what if we made Mr. Squidward's employee id 6?
@imadmoqine
@imadmoqine Месяц назад
I knew from the title (self joins are...ughhh) 😆 it's not as usual.
@memezthug1507
@memezthug1507 Месяц назад
bro need full join also bro please.........
@mehavenothing7078
@mehavenothing7078 Год назад
i want to ask a question, why after we use the inner join, on a.supervisor_id = b.employees_id; the sandy name will repeated a few times, i still didnt get why
@user-of9pw6ql4m
@user-of9pw6ql4m 7 месяцев назад
Because she is a supervisor of multiple people. You're looking at each row of the left table and see who is the supervisor for each employee in that table which is Sandy except for Sandy herself. Her supervisor is Crabs.
@PhrontDoor
@PhrontDoor 6 месяцев назад
Let's be honest.. Krabs isn't gonna comp ANYONE a free meal.
@tsunningwah3471
@tsunningwah3471 Год назад
bilibili
@PythonicMind
@PythonicMind Год назад
First
@alphaomegathegreatest7948
@alphaomegathegreatest7948 Год назад
Jesus Christ was lifted in the cross to pay for our sins, everyone who believes in him shall have eternal life John Cap. 3 | NIV-EN 14 Just as Moses lifted up the snake in the wilderness, so the Son of Man must be lifted up, 15 that everyone who believes may have eternal life in him.”
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