CF

Learn MySQL and Solve 42 Practical Problems

4h 24m 35s
English
Paid
Updated September 2026

Learn MySQL and Solve 42 Practical Problems is a 41-lesson 4 hours 24 minutes self-paced course by Udemy. Plenty of tutorials cover SQL syntax; this course is built around what usually gets skipped afterward — solving actual problems with that syntax, the way interviewers and real jobs test it.

Course facts

Lessons
41
Duration
4 hours 24 minutes
Level
All levels
Language
English
Updated
2026-09-11
Instructor
Udemy
Price
Premium

Plenty of tutorials cover SQL syntax; this course is built around what usually gets skipped afterward — solving actual problems with that syntax, the way interviewers and real jobs test it.

How it's structured

A short MySQL fundamentals section opens the course, useful as a first pass for beginners or a refresher for experienced developers. The rest of the course is 42 hands-on problems split across basic, intermediate and advanced tiers, including the table-join challenges that trip up so many newcomers to SQL.

What you'll take away

  • Confidence writing core MySQL statements from memory
  • Practical experience connecting to and querying a database
  • A repeatable process for joining tables to answer real questions
  • A bank of practice problems worth revisiting before interviews

The course won't cover every keyword in the language — the point is the problem-solving reps, which you're expected to work through yourself rather than just watch.

Who teaches Learn MySQL and Solve 42 Practical Problems? Udemy

Udemy thumbnail

Udemy is the largest open marketplace for online courses on the internet. Founded in 2010 by Eren Bali, Oktay Caglar, and Gagan Biyani and headquartered in San Francisco, the company went public on the Nasdaq in 2021 under the ticker UDMY. The platform hosts well over two hundred thousand courses across software development, IT and cloud, data science, design, business, marketing, and creative skills, taught by tens of thousands of independent instructors. Roughly seventy million learners use it worldwide, and the corporate arm — Udemy Business — supplies a curated subset of that catalog to enterprise customers.

Because Udemy is a marketplace rather than a single editorial publisher, the catalog is uneven by design. The strongest material lives in the long-form, project-based courses authored by working engineers — full-stack JavaScript, React, Node.js, Python data science, AWS, Docker and Kubernetes, mobile development with Flutter and React Native, and cloud certification preparation. The CourseFlix listing under this source is the slice of that catalog that has been mirrored here for offline-friendly viewing, organized by topic and updated as new releases land. Pricing on Udemy itself swings dramatically with the site's near-permanent sales, which is why the platform is best treated as a deep reference catalog: pick instructors with strong reviews and a track record of updating their material rather than buying on the headline price alone.

What lessons are included in Learn MySQL and Solve 42 Practical Problems?

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#1: Overview
All Course Lessons (41)
#Lesson TitleDurationAccess
1
Overview Demo
03:07
2
Introduction
06:11
3
MySQL Server Installation
08:04
4
How To Maintain Memory
02:52
5
Sample Database
02:43
6
Select Statement to query data
04:24
7
Distinct to eliminate duplicate records
04:27
8
Filter data records with where clause
02:30
9
2. Logic And and OR
03:09
10
Greater Than, Less Than and Between operator
03:01
11
IN and NOT operator
02:17
12
LIKE operator to select records based on patterns
05:29
13
LIMIT operator to limit the number of records displayed
01:53
14
ORDER BY clause to sort data
04:10
15
Using Alias to make queries more readable
03:15
16
MySQL INNER JOIN to join two or multiple tables
09:11
17
MySQL LEFT JOIN to include left set when joining tables
07:35
18
MySQL self joining tables
04:40
19
GROUP BY to put same value records into groups
09:11
20
HAVING clause to filter data after grouping
05:07
21
Subquery in MySQL
04:37
22
Combining result sets by UNION
03:51
23
Create Table
03:37
24
Insert records into tables
08:18
25
Storage Engines
07:15
26
Update record values
03:21
27
Delete records
04:49
28
Manage database
03:51
29
Drop statement
01:34
30
Sample Database for problems
03:53
31
Problems 1 - 6
11:22
32
Problems 7 - 12
12:08
33
Problems 13 - 19
18:06
34
Problems 20 - 23
12:08
35
Problems 24 - 27
14:40
36
Problems 28 - 29
14:23
37
Problems 30
03:12
38
Problems 31 - 32
10:36
39
Problems 33 - 34
08:05
40
Problems 36 - 38
11:50
41
Problems 39 - 42
09:43
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Frequently asked questions

What are the prerequisites for taking this course?
There are no strict prerequisites for this course, making it suitable for beginners. However, familiarity with basic programming concepts may be beneficial. The course starts with an introduction to basic SQL statements using MySQL, which is recommended for those new to SQL.
What practical skills will I gain from this course?
You will learn to execute various SQL statements using MySQL, such as SELECT, JOIN, and GROUP BY, while solving 42 practical problems. These problems are categorized into basic, intermediate, and advanced levels, which will enhance your problem-solving skills and understanding of complex SQL queries.
Who is the target audience for this course?
The course is designed for both beginners and experienced developers who want to deepen their understanding of SQL through MySQL. It's particularly useful for those preparing for developer interviews, as SQL questions are commonly included in technical assessments.
How does this course compare in depth and scope to other SQL courses?
Unlike many SQL courses that focus solely on syntax, this course emphasizes practical problem-solving with 42 diverse problems. It delves into various SQL operations like INNER JOIN, LEFT JOIN, and subqueries, providing a richer learning experience through hands-on practice.
What specific tools or platforms will I use in this course?
The course uses MySQL as the primary database platform. Students will install the MySQL Server and work with sample databases to practice SQL statements, making it a practical choice for those looking to work with one of the most popular relational databases.
What topics are not covered in this course?
The course does not cover advanced database administration topics, such as security, backup and recovery, or performance tuning. It focuses on SQL query writing and problem-solving within the MySQL environment.
What is the expected time commitment for completing this course?
While the total runtime of the video lessons is not specified, the course includes 41 lessons and 42 practical problems. Students should expect to spend additional time solving these problems beyond the video content to fully grasp the concepts and improve their SQL skills.