Tutorials: Many websites offer free SQL tutorials and exercises, such as SQLZoo and Mode Analytics. Source: about 1 year ago
Follow this tutorial. Sign up for a free account and follow along in the Mode report editor. Solve all the practice problems along the way. Source: about 1 year ago
If you are looking to practice your SQL skills, I like Mode to give you a good understanding of the basics as well as the advanced concepts. In this situation, I would simply learn to the test. Source: over 1 year ago
If youre learning SQL for the first time -> mode analytics is my favorite Especially for data analytics, great place to start and I recommend doing beginner and moderate levels. Source: over 1 year ago
I recommend this tutorial to all SQL beginners. My partner, who also had no background in programming, found this very helpful. Source: over 1 year ago
This series is quite comprehensive. I've recommended it here and in r/learnSQL multiple times. If you complete all sections - basic, intermediate and advanced - and by complete, I mean doing all the practice problems along the way - you'll be 60% ready. Source: over 1 year ago
This is a great (and free) starting point for complete beginners. If you create a free account, you get access to the report builder, where you can write queries to fetch data and build visualisations using the results. Use it as you go through the tutorial. Source: over 1 year ago
For fundamentals and an indept understanding of SQL then Mode Analytics platform is your go-to place. It's a free platform. Here is the link https://mode.com/sql-tutorial/introduction-to-sql/. - Source: dev.to / over 1 year ago
No one else has mentioned Mode’s SQL tutorial yet. I strongly recommend it for a basic run through of SQL topics from beginning to end in an approachable manner. https://mode.com/sql-tutorial/introduction-to-sql/. Source: over 1 year ago
Https://www.sqlteaching.com/#!select Https://mode.com/sql-tutorial/introduction-to-sql/. Source: almost 2 years ago
I don't want to advertise and am not affiliated in any way. For a first cursory understanding I do recommend the 'Mode Analytics' tutorial [0] to juniors interested in starting sql. [0]: https://mode.com/sql-tutorial/introduction-to-sql/. - Source: Hacker News / about 2 years ago
Start with something like Mode Analytics' SQL course and then probably get some exposure to PowerBI, Tableau, and any other BI tools that have a free / public version. It'll round out your resume. Unlike finance, the more you are open to learning in public (open source, public dashboards, portfolio, etc.) the faster you will improve and receive criticism you need to fill the gaps you will have. Source: about 2 years ago
It's usually never necessary to run SQL on your own computer, unless you're a software developer writing programs to read/write from a database. If your objective is to just learn SQL interactively with toy datasets, this is a great resource. You can create a free account to get access to the query editor and follow along with the tutorials. Source: about 2 years ago
Before you go there and practice , you need to get the basic SQL syntax. This is a good place . Get familiar with all (basic/intermediate/advanced). Source: over 2 years ago
So with regards to your problem, I would question why you would think that the first order of business would be to import data from the source system to Tableau. Is it because you are uncomfortable with SQL? To help with this I would suggest going through a quick introduction on things like Mode or DataQuest/DataCamp/Udemy/Coursera etc. Then going to leetcode and hackerrank and practice some of the 'Easy' ranked... Source: over 2 years ago
Mode Analytics has a good free SQL tutorial that covers the basics up to some intermediate stuff. Source: over 2 years ago
Good luck! This was my response to someone else. (I'm not as familiar with SQL resources as I use it a bit less frequently and just google what I need on an ad hoc basis, but I have gone through this and this murder mystery is a fun exercise!) My top tip for learning is honestly just to practice a little bit every day, or at least on a very regular basis a few days per week. It's really hard at first because you... Source: over 2 years ago
Check out the intermediate/advanced part of this tutorial: https://mode.com/sql-tutorial/introduction-to-sql/. Source: about 3 years ago
I keep some random things listed here, but the big ones are sentdex (for general python tools and basic ML), fast.ai (for deep learning), 3Blue1Brown (for linear algebra), and statistical rethinking (for stats). If you have never taken a stats course before, you might want to start with an intro stat book. Other commenters are right, SQL is nice to know, I recommend this resource. Source: about 3 years ago
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