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The Series Finale of Online Education: Coursera Acquires Udemy

$7.2 billion in combined revenue since 2020. $8 billion in lost market value. This merger marks the end of an era in online education.

Dhawal Shah Feb 11, 2026

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SQL

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SQL Courses and Certifications

Master SQL fundamentals, database design, and advanced querying techniques to unlock data insights and analytics careers. Learn through hands-on projects on DataCamp, Coursera, and edX, progressing from basic SELECT statements to complex joins, stored procedures, and performance optimization.

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15 Best SQL Courses for 2026: The Language of Databases

Here are the best online SQL courses, a highly popular declarative query language used to retrieve data from relational databases.

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SQL for Data Analysis

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CMU Database Group
OxQL: Oximeter Query Language from the Oxide Computer Company

Explore OxQL, the Oximeter Query Language developed by Oxide Computer Company, as Benjamin Naecker presents its features and applications in database management systems.
- YouTube
- 1 hour 4 minutes
- On-Demand
- Free Video
Neso Academy
DML Commands - INSERT and UPDATE in Database Management Systems

Master essential database operations with INSERT and UPDATE commands in SQL, learning syntax and practical implementation for effective data manipulation.
- YouTube
- 11 minutes
- On-Demand
- Free Video
CMU Database Group
Join Ordering: Top-Down and Transformational Query Optimization - Lecture 8

Dive into advanced database query optimization techniques, focusing on join ordering strategies and transformational approaches for improved database performance.
- YouTube
- 1 hour 10 minutes
- On-Demand
- Free Video
CMU Database Group
Towards Sanity in Query Languages

Explore the evolution and complexities of database query languages with leading experts Viktor Leis and Thomas Neumann as they discuss modern approaches and solutions for efficient data management.
- YouTube
- 1 hour 3 minutes
- On-Demand
- Free Video
CMU Database Group
Join Ordering: Bottom-up Dynamic Programming for Query Optimization - Lecture 7

Dive into advanced database query optimization techniques, focusing on bottom-up join ordering strategies and their implementation in modern database systems.
- YouTube
- 1 hour 9 minutes
- On-Demand
- Free Video
CMU Database Group
IBM Starburst Query Rewriter and Optimizer - Lecture 3

Dive into query optimization techniques with IBM Starburst, exploring rewriting strategies and optimization methods for enhanced database performance and efficient query processing.
- YouTube
- 1 hour 14 minutes
- On-Demand
- Free Video
CMU Database Group
Unnesting Queries in Database Query Optimization - Lecture 11

Dive into advanced database query optimization techniques, focusing on unnesting strategies and their implementation for improved query performance in database management systems.
- YouTube
- 1 hour 14 minutes
- On-Demand
- Free Video
Association for Computing Machinery (ACM)
SQLucid - Grounding Natural Language Database Queries with Interactive Explanations

Explore interactive techniques for translating natural language queries into SQL, featuring novel approaches for database interaction and query explanation.
- YouTube
- 13 minutes
- On-Demand
- Free Video
The ASF
Better Evaluation for Text2SQL Using Apache Calcite

Discover how Apache Calcite enhances Text2SQL evaluation methods, improving query accuracy and performance in data analysis workflows.
- YouTube
- 30 minutes
- On-Demand
- Free Video
Great Learning
Decoding Databases: Understanding DBMS, RDBMS, and Modern Database Systems

Master database fundamentals from DBMS to vector databases, exploring popular systems like MySQL, PostgreSQL, Oracle SQL, and MongoDB, with practical installation guidance and hands-on implementation steps.
- YouTube
- 1 hour 37 minutes
- On-Demand
- Free Video
Presto Foundation
Learned Query Optimization in PrestoDB

Discover how AutoSteer's ML-based solution revolutionizes query optimization in PrestoDB, offering up to 40% performance improvement through intelligent automatic tuning of optimizer parameters.
- YouTube
- 37 minutes
- On-Demand
- Free Video
Presto Foundation
PrestoDB Technical Steering Committee Keynote - State of the Project

Discover the latest developments, architecture, and community initiatives in PrestoDB through insights from the Technical Steering Committee Chair's comprehensive overview.
- YouTube
- 19 minutes
- On-Demand
- Free Video
CMU Database Group
Query Optimization Part 1 - CMU Intro to Database Systems - 15

Discover query optimization fundamentals including cost estimation, plan enumeration, and optimization techniques to improve database performance and efficiency.
- YouTube
- 1 hour 20 minutes
- On-Demand
- Free Video
Callstack Engineers
Structured Query Language - The Other AI

Discover how SQL functions as AI by automatically generating optimized algorithms from declarative queries, exploring database engine intelligence and practical guidance.
- YouTube
- 19 minutes
- On-Demand
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AI-Enhanced SQL Developer: AI + T-SQL, DW, SSRS, SSIS & SSAS
2013 ratings at Udemy

Become a modern SQL developer using AI-assisted development, automated ETL
- Udemy
- 17 hours 39 minutes
- On-Demand
- Paid Course

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