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HarvardX: CS50's Introduction to Databases with SQL

An introduction to databases using a language called SQL.

CS50's Introduction to Databases with SQL
7 weeks
6–12 hours per week
Progress at your own speed
Optional upgrade available

There is one session available:

38,365 already enrolled! After a course session ends, it will be archivedOpens in a new tab.
Starts Feb 27
Ends Dec 31

About this course

Skip About this course

This is CS50's introduction to databases using a language called SQL. Learn how to create, read, update, and delete data with relational databases, which store data in rows and columns. Learn how to model real-world entities and relationships among them using tables with appropriate types, triggers, and constraints. Learn how to normalize data to eliminate redundancies and reduce potential for errors. Learn how to join tables together using primary and foreign keys. Learn how to automate searches with views and expedite searches with indexes. Learn how to connect SQL with other languages like Python and Java. Course begins with SQLite for portability's sake and ends with introductions to PostgreSQL and MySQL for scalability's sake as well. Assignments inspired by real-world datasets.

At a glance

  • Language: English
  • Video Transcript: English
  • Associated skills:SQLite, SQL (Programming Language), Scalability, Python (Programming Language), Java (Programming Language), Relational Databases, Data Store, MySQL, Foreign Keys, PostgreSQL

What you'll learn

Skip What you'll learn
  • DROP
  • SQLite, PostgreSQL, MySQL
  • connectors (Python, Java)
  • replication

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