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.
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:
Looking for a free ER diagram tool? There are many on the market and Moon Modeler is one of them. This free ER diagram tool can be used to visually define smaller database structures for relational database systems such as MariaDB, MySQL, PostgreSQL, SQLite, and NoSQL databases such as MongoDB, or object-document mappers such as Mongoose.… Read the rest
Connection to SQLite database is not classic, so you will not find the option of this database in the connections section. To visualize an existing SQLite database structure, go to the Projects section and import SQLite from a file.
Select the database file. In this example, we will load the chinook.db… Read the rest
All database connections are available in the Connections section. To create a new connection, click the Connections button on the main toolbar, and then click Create New Connection. A new modal form opens. Select MySQL and enter the connection details.
When you are finished, click the Save Connection button.
Your new MySQL connection will appear in the list of all database connections.… Read the rest
To generate SQL script from your project click the Script icon on the main toolbar. New modal opens. Click Save Scripts and select a location where the files should be stored. Option Overwrite existing files allows you to ignore existing scripts and overwrite them without getting a warning.