prisma-orm

原文涵盖的主题

• Prisma ORM
• Quick Start
• When to Use
• Best Practices
• Step-by-Step Instructions
• Dependencies
• Examples
• Resources

Type-safe database access with auto-generated queries. Type-safe database access Rapid schema evolution with migrations Not for complex raw SQL queries Define the schema as the single source of truth; generate the client. Use migrations for every schema change, committed with the code. Select only needed fields (select) to avoid over-fetching. Use include/relationLoadStrategy deliberately to prevent N+1. Batch writes with createMany/updateMany. Use transactions for multi-step consistency. 1. Install: npm install prisma @prisma/client 2. Init: npx prisma init 3. Define models in schema.prisma 4. Migrate: npx prisma migrate dev 5. Generate client and query with types Input: prisma.user.findMany({ where: { email: { contains: "@" } } }) → Output: All users with @ in email Prisma Docs Examples PrismaClientInitializationError — the schema is out of sync. Re-run npx prisma generate and check the DATABASEURL is reachable. Introspection overwrites custom types — treat prisma db pull as an initial scaffold; re-apply manual types and relations afterwards. Relation queries are slow — missing index. Add @@index on foreign keys and use the Prisma Data Platform for query analysis. Migrations drif

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