15 Best Transactions Courses Online
We compared 15 Transactions courses currently listed on Coursera and Udemy, priced from $19.99 to $199.99. 2 come from a named university or institution, including University of California, Irvine and University of Michigan. They are ordered by our CourseAsk score, which is built from how thoroughly each course describes what it teaches, whether it comes from a named institution, and how it compares on price — not from star ratings, which our course data does not include.
- Courses compared
- 15
- Price range
- $19.99 – $199.99
- Providers
- Coursera, Udemy
- Last updated
- 30 Aug 2026
How these 15 courses were chosen
Every course below is a real, currently listed course from Coursera, Udemy, matched to "transactions" by our catalog and ordered by our CourseAsk score. Courses whose own title names the topic rank above those only tagged with it.
The grade on each entry scores how much the provider publishes about the course before you pay — the length and detail of the description, whether it lists learning outcomes and objectives — and whether a named university or institution stands behind it. A is fully documented and institution-backed; E is little more than a title and a price. Courses with almost nothing published are left ungraded rather than marked down, because an unknown course and a poor one are not the same thing.
There are no star ratings on this page — the course feeds we license do not include them, and we would rather leave a column out than fill it with a number we cannot stand behind. What we do have is price: these range from $19.99 to $199.99, as listed by the provider when we last updated the page.
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1
The Merkle Tree and Cryptocurrencies
Offered by University of California, Irvine
Apply what you have learned about cryptography and hashing in previous blockchain to the Merkle Tree, which underlies the process of adding new blocks — representing new transactions — to the blockchain. This course also...
$49.00listed price -
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2
Database Architecture and NoSQL at Scale with Deno
Offered by University of Michigan
In this final course of the PostgreSQL for Everybody specialization, you’ll explore how modern databases are built and scaled. You’ll begin by examining PostgreSQL’s architecture, including how it implements CRUD operati...
$79.00listed price -
3
The Blockchain System
Offered by University of California, Irvine
Learn how the blockchain authenticates transactions and distributes data to peers — nodes connected to the network. This course shows you how multiple versions of a blockchain are reconciled into one, discusses blockchai...
$49.00listed price -
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4
MongoDB Associate Developer & Database Administrator Exams
MongoDB Associate Developer Certification Practice Exam with Details Explanation! Get ready to Pass your Certification Exam.The MongoDB Associate Database Administrator (DBA) certification is designed to provide individu...
$19.99listed price -
5
Udemy MOOC / Non-creditSQL and PostgreSQL: A Practical Course
Learn SQL Quickly and EffectivelyThis course is the English version of my original top-rated Russian course.All lessons include full subtitles in: English, Español, Português, Français, العربية, हिन्दी, Bahasa Indonesia,...
$29.99listed price -
6
Udemy CertificateQuickBooks Online Multiple Currencies
Learn how to get access to QuickBooks Online including a possible free 30-day trial version often offered by Intuit, the owner of QuickBooks Online.The course will discuss accounting for multiple currencies, outlining th...
$199.99listed price -
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7
Udemy CertificatePostgreSQL for the Absolute Beginners - Hands-On
Unlock the power of databases with our hands-on course in PostgreSQL! Whether you’re new to programming or looking to enhance your data skills, this course will guide you through everything you need - from installing Pos...
$199.99listed price -
8
Udemy CertificateDominando Banco de Dados com MySQL
Gostaria de saber por que todos os programadores precisam dominar o banco de dados? Como será que as informações das empresas ficam armazenadas, e como manipular estas informações? Deseja se tornar um programador Web com...
$104.99listed price -
9
Udemy CertificateSmart Contract Mastery: The Complete Solidity Guide
Welcome to 'Smart Contract Mastery: The Complete Solidity Guide' an immersive and comprehensive course designed to equip you with the fundamental knowledge and practical skills to develop smart contracts on the Ethereum...
$99.99listed price -
10
Udemy MOOC / Non-creditRDBMS & SQL: Fundamentals for Backend Developers
Are you preparing for a backend developer role or gearing up for a crucial technical interview? This comprehensive course will guide you through the world of Relational Database Management Systems (RDBMS) and Structured...
$49.99listed price -
11
Udemy CertificateEssentials of Database Management Systems
This Database Management Systems (DBMS) course offers a thorough introduction to the principles, architecture, and practical aspects of database systems. It focuses on various data models, with special emphasis on the re...
$19.99listed price -
12
Udemy CertificateMastering QuickBooks Desktop Beginner To Advanced
In this QuickBooks Desktop Video Course, you will learn everything you need to know about QuickBooks Desktop. Any and Every version of QuickBooks Desktop, even Enterprise Solutions, any version, can be mastered by taking...
$109.99listed price -
13
Udemy CertificateSurrealDB : Le guide pratique - Maîtrisez SurrealDB & NextJS
SurrealDB : Le guide pratique avec un projet Next.jsDécouvrez comment exploiter la puissance de SurrealDB pour créer des applications web robustes avec Next.js. Ce cours complet s'adresse aux développeurs de tous niveaux...
$39.99listed price -
14
Udemy CertificateMastering SQL: From Zero to Query hero
Unlock the power of SQL and take your data skills to the next level! Mastering SQL: From Zero to Query Hero is a comprehensive course designed for beginners and professionals alike.Whether you're an aspiring data analyst...
$19.99listed price -
15
Udemy CertificateThe Complete MySQL Course: SQL for Beginners to Advanced
Do you want to learn MySQL and SQL from scratch and confidently work with real-world databases?This course is designed for beginners, students, developers, and aspiring data professionals who want to build strong SQL and...
$19.99listed price
Best Transactions Courses Online compared
Prices shown are the provider's listed price when we last updated this page. Confirm on their site before enrolling.
What the prices here tell you
The 15 priced courses on this page run from $19.99 to $199.99, with the middle of the range around $49.00 — a spread of $180.00. That is a wide gap for one subject. A higher price on this page usually reflects who is behind the course rather than how much material it contains, so it is worth opening two or three at different price points and comparing their syllabus before deciding.
Who is behind these courses
These courses come from Coursera and Udemy. The platforms differ in how they sell: some charge once per course, others expect a subscription, and the listed price is not always what you pay at checkout after a promotion. 2 of these are produced by a named university or institution, including University of California, Irvine and University of Michigan — which usually means a fixed syllabus and a recognised certificate, rather than an individual instructor’s own course.
Before you enrol
Open the provider’s own page and check three things this comparison cannot tell you: when the course was last updated, what the syllabus actually covers in its later sections, and what recent learners say. Prices shown here are the provider’s listed price when we last rebuilt this page on 30 August 2026 — they change often, and a promotion can move them substantially. We earn a commission if you enrol through our links, which costs you nothing and never affects the order courses appear in.