As someone who received SQL training during master's degree, I have to say that I learned much more from Alex's SQL lessons than what I learned at school. You are amazing Alex!
All your SQL tutorial videos from the basic up to this have helped me understand SQL, MUCH BETTER compared to the explanation that I've got from a bootcamp. Your explanation is so complete and concise. Thank you so much, Alex!
@@alexter001122 yes. I finished my bootcamp in Sep-2021, then applied for a data analyst position at various startups, did some interviews, and started working as a data analyst in Feb-2022.
I cannot speak for MySQL course cause I haven't attended it but, having attended other technical Coursera (and Google, too) Courses I fet a little bit disappointed regarding the content. Definitively, too much bla bla bla and little practical approach.
Perfectly clear explanation. However, I also noticed wrong information: 7:17 You said, "In your Subquery, you can only have 1 column selected". However, you can select multiple columns by using parentheses --------> WHERE (a, b) IN (SELECT a, b FROM x)
Thank you Alex! 🙌 For the last year I’ve been learning about data analysis/computer science part time, with the goal to move into the tech industry so that I can WFH, be available to my kids, and have income growth potential. Your videos were fundamental to my learning. I just landed my first job in the industry, and I attribute a big part of that to you.
Holy mackerel! We think and code exactly the same.This is exactly how I teach people about sub-queries, and partition by, and even the rarely used 'right join' which is similar to 'not in' where clause sub-query.
This has come just in time for an interview I have in the morning for a modelling analyst position, can't begin to describe how much your videos have helped! Keep up the crazy good work you are doing here!
I thought I knew SQL, but this whole series of videos help me understand that I don't know anything. Although your explanation was ease to follow and understand, I feel that need more study to really understand all the concepts.Thanks a lot for your time to make this series.
Just finished this series, thank you so much, you've re-ignited my passion for learning again. These simple, clear explanations of concepts has given me the confidence to dive back into more advanced concepts again.
Today i have completed SQL😩😩🥰❤️ Am so grateful for having found your channel, i believe by 2024 i will land a data analyst role in government or health care all studying from this bootcamp from scratch🙏🙏🙏 never been as committed, thank you so much once again, tomorrow am starting off with Python
I Am glad I followed the whole series of SQL tutorials from easy to advanced. Now I am clear on the concept. Now I am going to follow a real-world project of yours.
I love your videos, content is never enough. I know sometimes may be obvious to talk about something like subqueries when we have lots of content in the internet, but your explanation is very pertinent and very didatic, i learned a lot today. For this I thank you.
I just finished the Beginner, Intermediate, and Advanced SQL videos. Thank you, Alex, for publishing these. I'm adding SQL to my tool belt. These were a fantastic first look at the language.
I've just finished this series (1 week). I'm going to rewatch it all again (hopefully 1 day) and then start the Portfolio Project. I started from 0 and your videos are purely useful content, it made me understand SQL really fast. Thanks from Spain. PD: I will communicate here when I finish the course completly and also if I am lucky enough to get a job.
Thanks so much for these tutorials! I had a basic understanding of queries in ArcMap for GIS data and didn't understand why it was really that important but now thinking of it as having a database that has pre-made queries that can be manipulated in different ways to process and analyze data has made me understand its importance!
Thank you so much Alex! I went through the basic, intermediate and advanced SQL Tutorials. I would love to learn more about the store procedures in detail!
Thanks for letting us know that for a subquery in the SELECT and WHERE clauses; it can only have a single value and single column respectively as an output.
Brilliant SQL Tutorial Series! Every Video has really helped to fill in any potential gaps in my knowledge and even reinforce my existing skills. Thanks Alex!
Done for SQL Tutorial after 3 weeks of learning and spending 2-3 hours in each session while creating different scenarios outside the samples. hehe Mygee! I made it! haha! Thank you Alex! Next step is to get a certificate of SQL before proceeding to the other Tools. Hopefully I'm doing it right. Lol
You posted a tutorial on CTE before this. I am following from the older videos to the newer ones so I got lost for a bit and had to come find this. Thank you for making learning easy
Thanks for giving such a clear and concise explanation for why one would use subqueries! I'm currently working through the Google Data Analyst certification program and your explanation and approach was much easier to understand than the instructor who presented on this very topic.
Thank you for sharing, really really appreciate this. I would love to see more advanced stuff, specifically examples where you're using synonyms across different servers within source stored procedures (used to populate stage tables) to make joins along with ctes. I am at an internship right now, and still in my first year of college, I feel completely lost when working in these health insurance databases, most videos on youtube don't really go into more complicated stuff that I work with everyday so thank you again Many of these queries in the code base are 3000+ lines long and my brain goes numb looking at all the subqueries, joins, and obscure functions I have no idea what they do
I have enjoyed your videos. I have been programming and working as a dba for a long time, 28 years - since sql server 4.2. (Do you remember *=). I would consider myself an expert in sql server. I was even able to pick up a couple things in your sql videos that I didn’t know or at least did 8n a different way. Great job. Looking forward to the python and newer content. Working towards learning how to use ML to help clean data and find errors over the next year.
Thank you for your work and detailed explanations Alex. I mainly use COGNOS and COGNOS SQL so this is a great crash course for me to learn the differences between the two.
Hey Alex thanks for making videos which are so informative and helpful..as a mechanical engineer who wants to change his profession to data analyst ..what will u suggest to learn first
Hey Alex! All your videos on Sql Tutorials are awesome! Can you make a video on how to use primary and foreign keys in Sql Server? You've mentioned in one of your videos that you'll be covering those topics but I haven't come across the PK and FK in the Sql Tutorials(maybe I've missed them). Or if you have a video already out, could you direct me to it? Thanks for all the videos, they've helped me understand SQL Server much better!
I just learned this recently! Wonder do you have any recommendation for an intermediate level courses after the beginner course? I'm 75% done with my SQL beginner course. Thanks! :)
Hi Alex. Thank you very much for this series of videos. For me, your method of teaching is easy to follow and understand. Are perhaps you going to produce a tutorial on Goolge's Looker too in the near future?
This looks like a really interesting subject. I didn’t know anything about it until now, but I suspect the exponential, geometric, and weibull distributions might factor in?
I just finished the SQL tutorial from beginner to advanced. Now I want to start the portofolio project but part 2 & 4 of that video are missing. Let me know when those video already uploaded. thank you very much and sorry if there's something wrong about this comment, I'm still learning English
Hi there! great content!! Just to know, in a working place, how often is a subquery used compared to the join function? As both can give the same result.
The entire, Beginner, Intermediate, and Advanced playlists are a gold mine, Alex!
Thank You!!!
Glad you like them!
where is advance sql playlist
As someone who received SQL training during master's degree, I have to say that I learned much more from Alex's SQL lessons than what I learned at school. You are amazing Alex!
All your SQL tutorial videos from the basic up to this have helped me understand SQL, MUCH BETTER compared to the explanation that I've got from a bootcamp. Your explanation is so complete and concise. Thank you so much, Alex!
Really glad to hear it! :D
Question: were you able to land an analyst job after finishing your bootcamp?
@@alexter001122 yes. I finished my bootcamp in Sep-2021, then applied for a data analyst position at various startups, did some interviews, and started working as a data analyst in Feb-2022.
I have a Coursera certificate in MySQL, but you've explained it so much better than the instructor of that course.
I cannot speak for MySQL course cause I haven't attended it but, having attended other technical Coursera (and Google, too) Courses I fet a little bit disappointed regarding the content. Definitively, too much bla bla bla and little practical approach.
I'm taking that course right now. Have to heavily supplement it with the mode tutorial because the actual course lacks soooo much detail and examples!
Same. Taking a 4 week class from Coursera and i was stuck on week 3 where the instuctor teaches subquiries and joins. Hope this video will help
@@tasadem20 I’m having the same problem in week 3, I couldn’t understand the instructor and she didn’t not explain correctly
I have the same issue on datacamp, before I realised I was already doing nested subqueries and CTEs 💀
Perfectly clear explanation. However, I also noticed wrong information:
7:17 You said, "In your Subquery, you can only have 1 column selected". However, you can select multiple columns by using parentheses --------> WHERE (a, b) IN (SELECT a, b FROM x)
Thank you Alex! 🙌 For the last year I’ve been learning about data analysis/computer science part time, with the goal to move into the tech industry so that I can WFH, be available to my kids, and have income growth potential. Your videos were fundamental to my learning. I just landed my first job in the industry, and I attribute a big part of that to you.
How was your journey now? Mind sharing us your experience?
Holy mackerel! We think and code exactly the same.This is exactly how I teach people about sub-queries, and partition by, and even the rarely used 'right join' which is similar to 'not in' where clause sub-query.
This has come just in time for an interview I have in the morning for a modelling analyst position, can't begin to describe how much your videos have helped! Keep up the crazy good work you are doing here!
best of luck and i hope you celebrate with us when you get it. cheers
did you get that job ?
I thought I knew SQL, but this whole series of videos help me understand that I don't know anything. Although your explanation was ease to follow and understand, I feel that need more study to really understand all the concepts.Thanks a lot for your time to make this series.
Just finished this series, thank you so much, you've re-ignited my passion for learning again. These simple, clear explanations of concepts has given me the confidence to dive back into more advanced concepts again.
The editing here is seamless. Love how it all comes together!
Excellent, someone who knows how to zoom in for those watching on mobile!!!!
Today i have completed SQL😩😩🥰❤️ Am so grateful for having found your channel, i believe by 2024 i will land a data analyst role in government or health care all studying from this bootcamp from scratch🙏🙏🙏 never been as committed, thank you so much once again, tomorrow am starting off with Python
wish you all the best in your journey. consistency is key 💪
How is it now????
I Am glad I followed the whole series of SQL tutorials from easy to advanced. Now I am clear on the concept. Now I am going to follow a real-world project of yours.
King, you are the best sql teacher on youtube. Thanks SO much for making content on sql concepts that are actually used in everyday work flows.
Thanks for the great tutorial! Currently on my Google Data Analytics Certificate! This video made it easier to understand the concept!
I love your videos, content is never enough. I know sometimes may be obvious to talk about something like subqueries when we have lots of content in the internet, but your explanation is very pertinent and very didatic, i learned a lot today. For this I thank you.
So glad to hear that! And I agree - sometimes one good explanation of something is all you need to really get the grasp of it
Hello matheus please can we chat on telegram I need assistance
I just finished the Beginner, Intermediate, and Advanced SQL videos. Thank you, Alex, for publishing these. I'm adding SQL to my tool belt. These were a fantastic first look at the language.
I've just finished this series (1 week). I'm going to rewatch it all again (hopefully 1 day) and then start the Portfolio Project. I started from 0 and your videos are purely useful content, it made me understand SQL really fast.
Thanks from Spain.
PD: I will communicate here when I finish the course completly and also if I am lucky enough to get a job.
do tell
How is it now?
@@mizerosamuel5613 I got a job. :) This really helped me!
@@mizerosamuel5613i got one bro
Thanks so much for these tutorials! I had a basic understanding of queries in ArcMap for GIS data and didn't understand why it was really that important but now thinking of it as having a database that has pre-made queries that can be manipulated in different ways to process and analyze data has made me understand its importance!
Thank you so much Alex! I went through the basic, intermediate and advanced SQL Tutorials. I would love to learn more about the store procedures in detail!
You're most welcome! Thanks for learning with me :)
Had troubles understanding some concepts from a bootcamp but your explanations are amazing! Concise, precise and easy to understand.Thank you!
Your videos are good Alex.
We need a playlist of SQL needed for data science. Its a request. :)
Thanks for letting us know that for a subquery in the SELECT and WHERE clauses; it can only have a single value and single column respectively as an output.
After roaming around with other tutorials, it makes your tutorial more valued. Thanks sir
You have a knack for storytelling. Well done! 🎥
Thanks Alex for teaching Advance SQL REALLY QUICK.
Brilliant SQL Tutorial Series! Every Video has really helped to fill in any potential gaps in my knowledge and even reinforce my existing skills. Thanks Alex!
This content is gold. Thank you for putting this out here!
This helped me with [insert task]. You’re a lifesaver! 😇
Thank you so much for posting this series. I am learning SQL for the first time and your videos are extremely helpful :)
Finally finish this advanced tutorial. Keep going for next series...
Done for SQL Tutorial after 3 weeks of learning and spending 2-3 hours in each session while creating different scenarios outside the samples. hehe Mygee! I made it! haha! Thank you Alex! Next step is to get a certificate of SQL before proceeding to the other Tools. Hopefully I'm doing it right. Lol
Just finished watching all sql tutorial videos in this bootcamp. Time to watch the portfolio project.
Amazing video! Your hard work truly paid off. 👏
Wow, this changed my perspective. Great job! 💡
Im taking a test today and this is the perfect video for a quick reminder of everything.
You posted a tutorial on CTE before this. I am following from the older videos to the newer ones so I got lost for a bit and had to come find this. Thank you for making learning easy
The way you capture moments is so beautiful. 😍
This is a great video about subquery. Thank you, Alex!
Thank you Alex, i really learnt a lot from the beginners series up this advance series
Great explanation of subqueries. Thanks.
On my journey through the boot camp...
This comes in handy. Thank you.
that was really quick
I learned so much with your videos. You made learning SQL very fun. I enjoyed your examples. Thank you!
Very helpful. All your videos about SQL are very easy to grasp and concise. Thank you so much.
Thanks for giving such a clear and concise explanation for why one would use subqueries! I'm currently working through the Google Data Analyst certification program and your explanation and approach was much easier to understand than the instructor who presented on this very topic.
I am Finally done with SQL on this amazing channel. But got to go back for some revisions.
This is tremendously helpful. Got to resolve a blocker because of you. Thanks!
Keep up the Amazing content Alex!
I can’t get over how good the beat drop is. 😩
God bless you, Mr. SQL.
Thank you for sharing, really really appreciate this. I would love to see more advanced stuff, specifically examples where you're using synonyms across different servers within source stored procedures (used to populate stage tables) to make joins along with ctes. I am at an internship right now, and still in my first year of college, I feel completely lost when working in these health insurance databases, most videos on youtube don't really go into more complicated stuff that I work with everyday so thank you again
Many of these queries in the code base are 3000+ lines long and my brain goes numb looking at all the subqueries, joins, and obscure functions I have no idea what they do
Thank you so much Alex for providing such a valuable skills for free. It really made me become a aspiring data analyst.
I have enjoyed your videos. I have been programming and working as a dba for a long time, 28 years - since sql server 4.2. (Do you remember *=). I would consider myself an expert in sql server. I was even able to pick up a couple things in your sql videos that I didn’t know or at least did 8n a different way. Great job. Looking forward to the python and newer content. Working towards learning how to use ML to help clean data and find errors over the next year.
I have taken udacity course on sql and i applied the course on an actual db but your tutorials are much better realy specially on the joins
You just basically saved my career now
Thank you for your work and detailed explanations Alex. I mainly use COGNOS and COGNOS SQL so this is a great crash course for me to learn the differences between the two.
Thank you so much. I had trouble understanding sub-queries. You've explained it so well. 😎
WOAHH!!!😍😍 Thank you so much for making it easy :)
Thank you Alex for ur way in simplifying the training! Are you giving later more advanced videos about SQL or that is all ?
keep up the good work sir. I have been following your videos and techtfq videos as well and learned so much
Thank you so much, Alex. Your videos are superb.
Sounds like Dane Cook is teaching me SQL. Good video, thank you.
I’ve been using SQL on my job since 2007, and I swear that I still don’t know everything I should know when it comes to really "complicated" queries.
Same lol
Me too.
thank you Alex!
Excellent Tutorial
This song is on repeat! 🎶
Thanks Alex.
Great course
Thank you this series is really helpful. 👌
I wish I had this during my undergrad over a decade ago.
Hey Alex thanks for making videos which are so informative and helpful..as a mechanical engineer who wants to change his profession to data analyst ..what will u suggest to learn first
Please make a video on Window Functions. I love your videos :)
Hey Alex! All your videos on Sql Tutorials are awesome! Can you make a video on how to use primary and foreign keys in Sql Server? You've mentioned in one of your videos that you'll be covering those topics but I haven't come across the PK and FK in the Sql Tutorials(maybe I've missed them). Or if you have a video already out, could you direct me to it? Thanks for all the videos, they've helped me understand SQL Server much better!
I just learned this recently! Wonder do you have any recommendation for an intermediate level courses after the beginner course? I'm 75% done with my SQL beginner course. Thanks! :)
Thanks Alex!
Thanks it was helpful!
thank you so much for this tutorial
Hi Alex. Thank you very much for this series of videos. For me, your method of teaching is easy to follow and understand. Are perhaps you going to produce a tutorial on Goolge's Looker too in the near future?
Thank you for this video and recommendation
You should remind ppl to like your videos. I really like all your videos, super helpful~~~ but always forget to like it....
Thanks for sharing this video
What program is used here? It looks like a Jupyter NB for SQL
Very helpful. Than you.
do you have any suggestions on where I could practice these functions more? and this playlist is really beneficial thanks for the time and effort!
This looks like a really interesting subject. I didn’t know anything about it until now, but I suspect the exponential, geometric, and weibull distributions might factor in?
Great content
going to practice
Great content Thanks
Thanks, very helpful
Hello Alex
I love ur videos they v been guiding me through data analysis but i v issues with my sql
Hello Alex,
Where can we find some practice excercises to practice SQL queries?
Try StrataScratch.com or Leetcode.com :)
@@AlexTheAnalyst Thank You 🙂
I'd love a tutorial for working with SSIS Packages
I just finished the SQL tutorial from beginner to advanced. Now I want to start the portofolio project but part 2 & 4 of that video are missing. Let me know when those video already uploaded. thank you very much and sorry if there's something wrong about this comment, I'm still learning English
Where is primary and foreign key video could you please share the link
thanks a lot mate
Hi there! great content!! Just to know, in a working place, how often is a subquery used compared to the join function?
As both can give the same result.
Joins are used all the time - subqueries about 10% as many times as joins
Subquery can also alternatively be replaced by temp table or CTE.
hello Alex and thanks for greate videos.
What "over ()" means?
thanks
Thanks for the video! Studying SQL with DataCamp but the explanation on subqueries is very short..