15 Best Querying Courses Online
We compared 15 Querying courses currently listed on Udemy, Coursera and edX, priced from $19.99 to $249.00. 2 come from a named university or institution, including University of Maryland Baltimore County and The 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 – $249.00
- Providers
- Udemy, Coursera, edX
- Last updated
- 18 Sep 2026
How these 15 courses were chosen
Every course below is a real, currently listed course from Udemy, Coursera, edX, matched to "querying" 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 $249.00, as listed by the provider when we last updated the page.
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1
Microsoft SQL Server 2019 - Querying SQL Server
This course provides students with the technical skills required to write basic Transact-SQL queries for Microsoft SQL Server. You will learn how to write queries that return data from tables as well as create, update, o...
$19.99listed price -
2
Introduction to Data Engineering
Offered by IBM
Start your journey in one of the fastest growing professions today with this beginner-friendly Data Engineering course! You will be introduced to the core concepts, processes, and tools you need to know in order to get a...
$49.00listed price -
3
SQL Foundations
Offered by Microsoft
Learn the fundamentals of SQL with Microsoft SQL Server in this introductory course. You'll learn to write basic and intermediate queries to extract and analyze data while understanding relational database concepts. Thro...
$49.00listed price -
4
Mastering SwiftData & SwiftUI for iOS Development
Offered by Packt
This course features Coursera Coach! A smarter way to learn with interactive, real-time conversations that help you test your knowledge, challenge assumptions, and deepen your understanding as you progress through the co...
$49.00listed price -
5
Real-Time Big Data Access using HBase: Boosting Performance
Offered by LearnQuest
In the world of big data, the significant growth in both the sheer volume and variety of data has presented significant challenges. Apache HBase has emerged as a robust and scalable solution. HBase is a powerful, distrib...
$49.00listed price -
6
Master Oracle SQL Developer for Databases & Tables
Offered by EDUCBA
Master practical SQL through hands-on case studies that help you design relational databases, build tables with constraints, write efficient queries, and analyze business data using Oracle SQL Developer. Throughout this...
$49.00listed price -
7
Generative AI: Enhance your Data Analytics Career
Offered by IBM
This comprehensive course unravels the potential of generative AI in data analytics. The course will provide an in-depth knowledge of the fundamental concepts, models, tools, and generative AI applications regarding the...
$49.00listed price -
8
Relational Database Management Systems
Offered by University of Maryland Baltimore County
Learn how to create and interact with a relational database. The course includes Data Definition Language (DDL) used for database creation and Data Manipulation Language (DML) used for inserting, updating and deleting da...
$249.00listed price -
9
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 -
10
Splunk Core Certified User: Master Expertise from Scratch
IMPORTANT before enrolling:This course is not intended to replace studying any official vendor material for certification exams, is not endorsed by the certification vendor, and you will not be getting the official certi...
$19.99listed price -
11
SQL Data Analytics with Tableau Data Visualisation
Please note, some of the resources in this course are located on Dropbox or GitHub, hence you will need to use the supplied URL to download files e.g. SoftwareUnlock Your Potential with Advanced SQL Data Analytics Skills...
$199.99listed price -
12
Introduction to Graph Databases using Neo4J
Graph databases are gaining popularity these days because of their ease of use, simplicity, and agility. As compared to relational or document databases, graph databases are great at expressing real-world data models wit...
$24.99listed price -
13
MongoDB Administration
A quick introduction to NOSQL database.The other NOSQL database in the market are below.MongodbCouchdbRedisCassandraIBM CloudantAmazon DynamoDBRavenDBHbaseAzure CosmosDBMarkLogic ServerRiakDatastaxGoogle Cloud DatastoreA...
$19.99listed price -
14
Databases and SQL for Data Science with Python
Offered by IBM
Working knowledge of SQL (or Structured Query Language) is a must for data professionals like Data Scientists, Data Analysts and Data Engineers. Much of the world's data resides in databases. SQL is a powerful language u...
$39.00listed price -
15
Database Design and Basic SQL in PostgreSQL
Offered by The University of Michigan
This first course in PostgreSQL for Everybody explores the use of SQL in the PostgreSQL environment and introduces SQL techniques and commands. This course also explores data modeling and database relationships, while in...
$59.00listed price
Best Querying 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 $249.00, with the middle of the range around $49.00 — a spread of $229.01. 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 Udemy, Coursera and edX. 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 Maryland Baltimore County and The 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 18 September 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.