
SQLZOO
DataLemur
LeetCode
The Odin Project
HackerRank
LiveEdu.tv
Codecademy
SQLBolt provides a set of interactive lessons and exercises to help you learn SQL

Mockaroo
Universal Data Generator
Mocki
Generate Data
MockDataGenerator
Smock-it is a powerful CLI tool designed to simplify test data generation for Salesforce. A lightweight alternative to Mokraoo, it helps developers and QAs quickly generate, manage, and customize data for seamless testing and streamlined workflows.

Which is more popular?
Based on our record, SQLBolt seems to be more popular. It has been mentioned 125 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | sqlbolt.com | concret.io |
| Pricing | — | |
| Company | — | 2024 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of SQLBolt yet.
Smock-it(also known as Smockit) is a tool for generating test data for Salesforce quickly and accurately through an easy-to-use command-line interface. Built by Concret.io, it goes beyond traditional tools and can be an alternative to tools like Mockaroo, Mocki, Snowfakery, and GenRocket for...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
SQLBolt is recommended for beginners who are new to SQL or those with limited experience who need a refresher on basic concepts. It is also useful for anyone who prefers learning through interactive and practical exercises rather than purely theoretical content.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Learn SQL in 2 Hours | SQLBolt Solutions
No Smock-it videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using SQLBolt and Smock-it. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Disclosure: I help build these simulators; they are part of 50+ free DevOps games and simulators. For more practice beyond them, SQLBolt and PostgreSQL Exercises are excellent and free, and SQL Murder Mystery is the most fun anyone has... - Source: dev.to / about 1 month ago
I hope this helps you with interview prep as it does to me. I find https://sqlbolt.com/ super helpful if you want to learn SQL queries in depth. Thanks! - Source: dev.to / 7 months ago
SQLBolt - Introduction to SQL - Browser-based interactive tutorial with progressive lessons and immediate practice exercises, offering a quick and practical way to learn SQL fundamentals directly in your browser without setup, though it... - Source: dev.to / 11 months ago
Tracking Smock-it since Apr 2025.
When comparing SQLBolt and Smock-it, you can also consider the following products.

SQLZoo includes tutorials and reference to support people learning SQL. It features:
Compare SQLZOO to SQLBolt or Smock-it:

Practice SQL Interview Questions & Data Science Interview Questions asked by FAANG.
Compare DataLemur to SQLBolt or Smock-it:

Generate realistic Salesforce test data with proper relationships and record types in minutes! Direct upload to sandboxes—no CSV wrangling, no production data risks.
Compare Universal Data Generator to SQLBolt or Smock-it:

Practice and level up your development skills and prepare for technical interviews.
Compare LeetCode to SQLBolt or Smock-it:

Using Mocki you can create, run and deploy mock services without hassle. Use your mock services to run tests independent of external services, design APIs and remove backend dependencies for your frontend team.
Compare Mocki to SQLBolt or Smock-it: