There are several methods for linking related data items and organizing them for easy lookup:
The following table provides a complete overview of the different relationships you can form in Ditto, as well as a brief description, list of possible approaches you can take, and links to related content:
Associates a parent element with children elements to establish a hierarchy.
Associates multiple entities in one collection with multiple entities in another collection.
Associates two or more collections, where one collection refers to the primary key of another collection to create a meaningful relationship between the datasets.
To create a foreign-key relationship, store the primary key to one document in another document.
A foreign-key relationship establishes a link between two or more datasets. For example, the following snippet demonstrates a foreign-key relationship between documents in the cars and people collections, in which the reference to susanId serves as the foreign key establishing a relationship between cars and people:
A key-value relationship establishes a parent-child hierarchy between embedded data elements. In this hierarchy, the key functions as the parent, and its encapsulated values, represented as a set of key-value pairs, serve as children.