Prisma makes database relationships intuitive. Here's how to model and query them effectively.
One-to-Many Relationships
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Many-to-Many Relationships
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Self-Relations
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Nested Writes
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Filtering by Relations
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Aggregations with Relations
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Transactions
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Best Practices
Schema Design:
✓ Use appropriate relation types
✓ Name relations clearly
✓ Consider cascade deletes
✓ Add indexes for foreign keys
Queries:
✓ Use include/select wisely
✓ Avoid N+1 with includes
✓ Filter relations in query
✓ Use transactions for consistency
Performance:
✓ Limit nested includes depth
✓ Paginate relation results
✓ Use count instead of fetching
✓ Index frequently filtered fields
Conclusion
Prisma makes working with relationships intuitive through its schema definition and query API. Use implicit many-to-many for simple cases and explicit for additional fields. Filter and aggregate through relations efficiently, and use transactions for data consistency across multiple operations.