How to create ER diagram of PostgreSQL database running in Heroku? With Moon Modeler, the process is simple. Just create a database connection, retrieve the information from Heroku Postgres and create a project containing the ER diagram. But let’s start one step at a time.
Use crows foot notation to represent relationships between entities in an entity relational diagram. Entities are connected by lines, and symbols at the beginning or end of the line describe cardinality.
Settings for MongoDB ER diagram graphics can be defined on two levels in Moon Modeler. On a project level and on a selected object level.
Click the MongoDB ER diagram area to make sure no object is selected. Then change the colors in section Graphics. Alternatively, edit Project properties and specify settings on tab Graphics of the modal form.… Read the rest
Entity relationship diagram describes the structure of the database. The entity relationship diagram shows entities (tables in relational databases) and relationships between tables that exist in the database. For a good database design, it is very important to have an entity relationship diagram.
In an entity relationship diagram, the basic elements are:
Default values can be set in the Project settings. These options are of course dependent on the target platform, so the options for a MongoDB project will be different from the options for PostgreSQL or MySQL projects.
When it comes to forward engineering in Moon Modeler, it’s about generating the resulting script for the selected target platform.
In the case of relational databases such as PostgreSQL, MariaDB, MySQL or SQLite, it is the resulting SQL script. For MongoDB it is possible to generate a schema validation script and for platforms like Mongoose or GraphQL it is schema definition scripts.… Read the rest