Moodle – online ER diagram


  • Moodle is the world’s most popular learning management system.
  • Moodle is a learning platform designed to provide educators, administrators and learners with a single robust, secure and integrated system to create personalised learning environments.
  • With over 10 years of development guided by social constructionist pedagogy, Moodle delivers a powerful set of learner-centric tools and collaborative learning environments that empower both teaching and learning.
  • Powering hundreds of thousands of learning environments globally.

For more information visit
See for details about learning management systems (LMS)

Online ER Diagram / database design

The database design was created by loading the database structure from a remotely hosted Moodle version 3-10-6. The target database was MySQL.

How to use the ER diagram: click on a db table in the online ER Diagram. A new window opens – and in the window you can view the details of the table, including how indexes are defined and other details of the selected MySQL table.

The database structure doesn’t include relationships and like in many other open source systems, database functions, table triggers and other database objects are not specified.


Target database:

Diagram URL:

Moon Modeler project file:

How to:
Open *.dmm project file in Moon Modeler

About Moon Modeler: a desktop data modeling tool for MariaDB, MySQL, PostgreSQL, MongoDB, SQLite, GraphQL and Mongoose ODM. It allows you to create ER diagrams of existing databases, visualize nested structures, generate SQL or schema creation scripts and produce PDF or HTML reports. A feature-limited free version is available for Windows, macOS and Linux. For more information about Moon Modeler please visit

Moon Modeler - er diagrams and generation of online er diagram reports.

If you have suggestions or comments, send us a message to dbdiagrams(at)