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SQL Interactive Websites

Hi! I wanted to share some websites that have helped me with bettering my SQL skills and are interactive, as in you can learn as you practice SQL on the website through an educational or fun way! 

SQL Bolt

This website is one of the best for beginners to SQL as it helps with explaining the different SQL statements as well as giving brief interactive exercises for each explanation/topic. Additionally, it offers help on more intermediate topics as well such as subqueries. However, this site doesn’t have many resources on more advanced SQL topics, so it may not be best if you’re more intermediate in SQL, but could be good for a basics refresher.

SQL Zoo

This website is another one which is good for beginners to SQL as similarly to SQL Bolt, it primarily explains different SQL statements and queries. There are brief interactive exercises as well as quizzes on various SQL topics. Additionally, there are assessments for more advanced users of SQL to test their knowledge which consist of 15 questions for different databases, including dressmaker, musicians, help desk, and so forth.

Select Star SQL

This website is an interactive SQL exercise where you learn as you go while interacting with a database of death row patients. The difficulty of queries slowly increases as you go through the exercise. I find this website helpful as it threw me into SQL and I prefer the learning while doing method, especially with real-world data. This could potentially be triggering if you don’t want to read the details of people being on death row.

SQL Murder Mystery

This website is an interactive SQL exercise where you try to figure out who committed a murder using SQL. This website is good for both beginners and more intermediate SQL learners. It offers a walkthrough for people who are completely new to SQL. Alternatively, the website gives schema details to those experienced with SQL and want to figure it out on their own.

SQL Police Department

This website is similar to SQL Murder Mystery where you try to figure out police cases through learning SQL. It has prompts where you then use SQL to try to figure out the information the police need. The site also has a guide on SQL and gives basic summaries on different queries. I found this site fun to use and it has a cool interface. However, one con of this site is you can only do a certain amount of SQL queries before it asks you to pay for the longer version of the site.

Practice SQL

This website has been my personal favorite as the interface is clean and easy to understand. The website gives you prompts to use SQL to select from two different databases, the first of which is based on doctors and patients in different provinces while the the second is based on products and their orders as well as employees who work at the company. For both of these databases, there’s a series of prompts/questions from easy to intermediate to advanced SQL. Additionally, there’s learning resources which helps explain different queries and functions of SQL as well, if you’re confused or need help!

I hope you guys find these websites helpful!!

kinda forgot about this blog but here's some pictures from the last few weeks. it's midterms season and i've been focusing on studying for exams instead of on programming practice, which i don't like. i'm thinking of doing sth like 30 days of code so i don't fall behind on my c++ studying, even if it's just a tiny bit done each day.

hope you're all doing well!

day 21/30 of productivity

had my calc exam today (horrible awful but it's fine) and I finished the database group assignment- also awful and horrible but ultimately fine. The submission date got moved to tomorrow instead of today and like I've been saying in every post I am soooooo tired. on the right is a cappuccino I bought impulsively yesterday cos I knew id be staying up all night. It didn't do anything for me cos coffee never does but I like to pretend.

30 days of productivity challenge: day 1/30

starting this challenge again because why not and also i need the sense of accountability.

today:

full body workout

software engineering ch1

day 6/60 of productivity

I'm really enjoying learning this. I'm making apps and even tho they're simple ones right now it is so incredibly satisfying to see the little android icon pop up on my phone screen knowing I made it :))

today:

finished lesson 3 of android dev fundamentals course

started user input section of android dev fundamentals course

got halfway through user input section of ^^

worked out

read Cloud Cuckoo Land by Anthony Doerr for 1hr

data structures and algorithms notes. I actually enjoyed studying it :)

Hi! How did your final go? Btw what app are you using in your 11/30 dop?

hi, it went well thanks for asking :) and the app is siyuan-note. it's like notion but better in my opinion cos it's available offline too.

reblog if you are an active studyblr

( 12/09/23 )

day 2/30 of productivity

database systems. this class is mainly memorization (at least for now) so I'm using flashcards. today I revised ch 1 then studied and made flashcards for ch2.

day 10/30 of productivity

this was from yesterday where i spent the whole day (and night) cramming for my computer architecture and assembly language exam. it went well!