Introduction
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Databases are dynamic entities. Over time, data inside them are added, removed, and modified. There’s a fair chance that, in addition to the data, the structure, or schema, of your database tables will change over time. You might want to add more or remove properties to a model, or define new models that have relationships to existing models.
SwiftData luckily has mechanisms to help you migrate your schemas from one version to another. In this lesson you will:
- Discover when you need to worry about migrating your model schema
- Learn about how to annotate your schema models for migration while using model inheritance