SQL Joins Explained |¦| Joins in SQL |¦| SQL Tutorial
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- Опубліковано 24 бер 2019
- SQL Joins let you fetch data from 2 or more tables in your database. We will cover the more common types of Joins: Inner Joins, Left Joins, Right Joins, and Full Joins (also called ‘Full Outer Joins’). We will introduce these 4 kinds of Joins and prepare you for our next video where we will cover many examples.
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SQL instructor: Ulka Simone Mohanty (@ulkam on Twitter)
Written & Produced by Kimberly Hatch Harrison (@khhsocratica) & Michael Harrison (@mlh496)
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It's official! The Socratica Python Kickstarter was a success! Thank you to all of our supporters. Because of you, many more Python videos coming soon!! 💜🦉
ok thankyou but i am new in this field how we get jobs in DBA
as DBA
is it required to make (martian-table)base id a primary key and (base-table) a foreign key?
Any way we can have access to the Martian data as an XLM file somewhere? Lol I would like to practice with it.
This could be better if you included a link to what you think is the best online busybox/play tool to practice/learn sql in practice.
I still think you're really a robot ^_^
This is saving me from getting fired
what 😂😂 hope your joking bro
Buhahaha
haha!
xD
You still workin there?
I actually cried because this is too good to be free. Thank you.
Whoever wrote, hosted, edited, directed this masterpiece, deserves a Nobel Prize, well done ❤️
Yes!
This is the first time I've heard someone explain the LEFT vs RIGHT join in a way that makes sense. Thank you!
Me too! This video was shared in my sql class and they are the most helpful I have found.
SAME HERE!
Me too, first time I see an excellent explanation after over a decade of programming.
2:25 the sound of the tables joining is sooo satisfying!
lol i agree
lmao yes I thought I was the only one
Ok 2 minutes into this explanation I'm like "This how i want to learn everything else for the rest of my life"
Let's not only acknowledge the great tutorial, but also the satisfying sound effects when the rows are joined together! 🥰
Boom!!!
Another Kindred Spirit exists.
yeah! Just Like Tiles
I liked those too!
never seen such a well-produced SQL video
Your style is simply hilarious. This is what great education should look like!
I can't express how much i love this series
Same!
LMAO it's like watching Netflix.
...and the presenter, so beatuful.
This is one of the most creative tutorials I've ever seen. Absolutely brilliant.
Thanks for making learning fun!
Totally agree!
Acting, jokes, delivery of information, everything here is magnificent
I can't express the amount of inner join I got from this
MORE LIKE INNER JOY RIGHT?
I really deeply appreciate that you explained this with a theme, because I know how much time and effort editing this kind of videos take. You could just simply explain joins in a whiteboard or a regular presentation but you went beyond that and that alone deserves recognition 👏👏👏
That's not Socratica way
Gotta say, this is one of the most creative ways to teach SQL and databases I've ever seen.
Watched an hour ago, still laughing.
You managed to make SQL funny while explaining it better than anything else I've found so far, and that's gotta be a superpower of some kind.. You guys are awesome!
In the future, everyone uses SQL still? Oh, god, this truly is the worst timeline.
Don't worry. The SQL will also be encapsulated by a layer or AI. I mean... sure... the AI will probably also plot to vacate all of Earths atmosphere or something, but at least you wouldn't actually have to write the SQL yourself anymore.
Or job security haha
@@rafatashrafjoy2936 no worriers. It's impossible to work with large database using NoSql.
And they will still be writing articles about how AI will soon make computer programmers unnecessary.
It's the future. Everyone is using NoSQL now but SQL is still around :)
Amazing! You just saved me 2 hours of reading, thank you.
Your explanations are simply clear, straight to the point and easy to understand - better quality than majority of university professors or boot camp trainers. Thank you
After just coming from a pretty good Udemy boot camp trainer, I 100% agree!
This is absolutely a masterpiece. I usually don't comment on videos but THIS VIDEO??? I cannot pass through without how amazing and well done this video was made. I was completely lost when I was reading about the Join process, and most videos usually don't help as much. This video was not only informational but also very fun to watch. It was kind of like watching a movie. Once again, thank you to everyone who contributed in this. Subscribed.
The Venn diagram example nailed it into my head wonderfully. Thank you. Now I cannot unsee the types of joins.
By far you've explained joins as best I've seen on YT. Using inner join as the standard and left, right, and full as different tools it helps add context for why you would utilize the joins. So many times people try to explain this stuff completely theoretically, and does my head in. I enjoy the quirkiness too
OMG........this lady is amazing! The production values, comedic values, learning values, and creativity of the video are just killer. I never had so much fun watching a SQL video before and that does put a smile on my face.........
It should have been a Dear Join Letter.
Opportunity wasted.
Yes!!
No No it should have been a Dear Join Later.
Dang so far the best video explaination for beginners ive seen on youtube. Thanks.
This is probably the weirdest tutorial i have ever watched, but it is absoloutely amazing and well explained.Thanks!
This is unironically the *best* explanation of joins in SQL that I have come across. Thank you so much for making this video!
wow....never thought I would find SQL remotely interesting.... Thank you for making this so much less painful!
I usually don't login to the youtube. But, after hearing that "join" joke I had to subscribe and give you a like.
FINALLY!!! Someone who has explained joined in a way I can understand. Thank you 👏🏾👏🏾
finally SQL tutorial that visually demonstrates and explains how rows from different tables are joined.
You just saved my brain... Thank you for breaking this down the way you did. I could not figure out the Join was actually doing but your formatting and starting with the * for all columns then narrowing it down made it all click for me. Thank you so much!!
Ulka you are one of the greatest teachers i ever saw in my life! no joke
This style of teaching makes the pieces of information much less painful to learn. I love it! Thank you so much for this content!
Whimsy, quality content, brevity, this playlist is the complete package. Absolutely love the effort!
Those animations are just superb. I have been looking for something like this that will give a clear visual explanation of joins but they are very rare to find or not good enough. Thank you Socratica
A SQL query goes to a bar, walks up to two tables and says, "May I join you?" Great videos Socratica!
_nice_
I haven't written an sql query in like 5 years so just wanted to refresh my knowledge. This is so good. I wish content like this existed when I was learning how to code.
Yo... just me or is this the most creative way to learn this stuff? They killed this!
This is a really great video (and I assume course though I've not seen the other videos yet).
Super clear explanation, and I love that I can use my imagination to help to solidify the concepts better, great job!
I'll be watching these more in detail at the next semester
Take a bow, the creative team behind this tutorial. You people deserve an Oscar for the R. E. Joinder thingy!
agreed, that was high-level comedy right thurr. I chuckled.
I’ve been a few years in the Tech industry now but I haven’t worked with SQL in the past 5 years. This video is just amazing. Great resource for learning SQL joins.
7:53 love it 🤗
This was extremely clear. Much love to the editing too
It's good to know that I live in a world where glados 2.0 will patiently explain sql to me.
I didn't there was any way in the entire multiverse to make SQL entertaining but you did it! Now I'm starting to understand JOINs!
This is by far the BEST EXPLAINATION of Join in SQL. Thank you so much!
I can't tell how these animations took my concentration, everything went easier than I thought, Thank you Socratica for your clear explanations and time, I can't wait to be where others are🥰.
We're so inspired by you! Thank you for sharing your motivation and excitement about learning. 💜🦉
Maybe your next series can be about teaching some "words" in English language, which can help us express how much we love this series !
THIS IS EXACTLY WHAT I WAS LOOKING FOR, the tables so nicely presented instead of starting at sql server no clue what to type omg
I've been a data analyst for a whole year and was missing this basic visual explaination of how JOINs work. You helped me figure some duplication stuff out I was really struggling with. Thank you!!
Good to hear that the crazy NoSQL fad has ended and we're sensibly using SQL in the future. ;)
It's worth noting that PostgreSQL also has a USING clause for joins, which can be used in place of the ON clause when--and only when--the column(s) being joined on in both tables have the same name. So using the example in the video, "ON b.base_id = m.base_id" could be replaced with "USING (base_id)". And yes, that syntax would work for all 4 types of joins.
Yup. Unfortunately, there are a lot of DBMS's that do not USE USING, so it wouldn't work in code trying to be portable across DBMS choices.
I love how well structured and meaningful your programming videos are. This channel is my go to source.
I have tried to get clear information on JOINS from a few certs, and this is 1000X more clear than any of them, and quicker. I am SO thankful for this
Writing this down in my notebook: Okay, yeah this makes perfect sense. Everything is logical and clear.
Testing myself with creating a customized sandwich database: What is what again?
So true🤣
I wanna go back to college again and make perfect my exams.
By far the most clear and concise explanation of JOINS I have seen! Thanks so much!
This is one of the best explanations I've ever seen! Tears of join running down my face right now.
Just found this channel, it's really good, although sometimes the face expressions are kind of creepy, maybe that's why I like it hehe
I bought a bunch of books and none of them use Venn diagrams like you did here.
I could have saved a lot of scratch. : /
LOVE this video, it's entertaining to watch while explaining JOIN clause clearly. GREAT JOB!
The visual clarity of this tutorial is amazing! I've struggled with joins for weeks, this was just what I needed. Mil gracias!!
Sad for pour homeless John Carter though...
im doing intention yoga so i can marry this woman this life or next or the one after...
I think the writers were having too punny of a time with this script. However, she could read the dictionary and I'd still watch and learn.
Join is one concept that is vital in a relational database, yet it is the weakest of my SQL skills. Thank you for producing this course.
Just the right amount of interesting, visual, and quirky/goofy. 12/10 would recommend.
Lmao you sound totally different from python instructor.
because SQL is fun and python is hard, you need a serious face to learn python.
I'm born in March, does that mean that I'm a martian?
Nah, you're a Mariachi. Yiiihaa..
This is just incredible. Its very clear, keeps you interested throughout the whole thing, has intentional bad jokes, kudos @Socratica
This might be the most creative and fast forward tutorial I've ever watched !!
This free superbly helpful video not only shows how bighearted you are but also how much you love what you’re doing.. Thanks a lot. God bless you.
I never imagined that learning SQL could be so much fun! The creators of this channel are genius. Thank you so much!
Socratica, thanks for your clear and concise content! You saved my life in school for Python, now I'm here for SQL! I love your sense of humor!
I’ve never been so invested and entertained while learning about data structures. Thank you.
Thank you, I had questions about SQL during my engineering test and learning from your videos helped me pass it
extremely helpful, finished my assignment and didn't cry once because of this. 10/10 gives you maidens.
This is an ACTUAL LIFE SAVER. Thank you for making a fun, silly example, and ACTUALLY VISUALLY MOVING THE ROWS and COLUMNS physically in the space to join them. I NEEEEEDED to SEEEE this. Not to HEAR it explained in fancy tech terms. You are AMAZING.
This is great to hear, thanks for telling us. That's the thing we're aiming for in these videos-what can you do with a video that you can't do as well with just written tutorials.
This is awesome! So much more entertaining than my current SQL course - and I love the visuals. I'm a super visual learner
This video is truly one of the gems on UA-cam, the effort you went to help us visualise everything...Thank you very much!
I didn't understand SQL join until I watched this video. Thank you so much. Amazing socratica
The background noise giving that outer-space vibe is such a nice touch. I thoroughly enjoyed this video.
Finally someone could explain me how to use different JOINs!!! Oh THANK YOU for that!!!
this is amazing! I was fully gonna settle for some run of the mill SQL tutorial with quick examples but your explanation and production quality are top notch. thanks a bunch!
Best description of SQL joins I've found on youtube. Great content. Thanks
I have tried watching many videos but have never understood joins as clear as possible from this one! Wonderful thank you very much!
Been a dev since 2006 and this is THE best explanation/tutorial/video I've seen on the subject. Thank you!
love how you simplify everything with examples.
This is so wholesome, smiling and learning the whole time
i cannot compliments this video too much - so much thought has gone into it - it has thorough & excellent examples - the visuals are superb - and narrator is the best
This is by far the clearest explanation of joins that I have seen. Thank you and we'll done. It motivated me to *JOIN*
This series is so on point and the talent couldn't be more perfect!
This is the best tutorial ive seen on joins. Easy to understand and fun! Thank you very much this helped me alot!
Yes, I now have a much better understanding in using JOIN. Thanks a lot for the clear & interesting presentation. Love it
Thank you so much! I have been struggling with this concept until watching your video. The way you step through and explain is outstanding. You do a great job! I will be watching many more of your videos.
I already understood this topic in the first few minutes but I couldn't stop myself from watching till the end.
I never knew I could actually enjoy a tutorial.
I'm checking out the rest of your videos
This is truly incredible. Thank you so much for making this. So easy to understand!
This is the best channel...ever...I love how she is like a character from a TV series...It helps people like me who has a short attention span focus
I'm so thankful for this tutorial. I've finally understood the process and I've been just joining tables when I can just because I'm so happy I can do it. Thank you again!
this is so amazing, I was going crazy with what JOIN is doing in my head. This is what I needed!