Setup Prisma: npm install prisma @prisma/client. npx prisma init. Cria schema.prisma e .env.

Define Schema: model User { id Int @id @default(autoincrement()); email String @unique; posts Post[] }. model Post { id Int @id; authorId Int; author User @relation(fields: [authorId], references: [id]) }.

Generate Client: npx prisma generate. Cria Prisma Client em node_modules. Import: const prisma = new PrismaClient().

CRUD Operations: Create: await prisma.user.create({ data: { email: "..." }}). Read: await prisma.user.findMany(). Update: await prisma.user.update({ where: { id: 1 }, data: { email: "..." }}). Delete: await prisma.user.delete({ where: { id: 1 }}).

Migrations: npx prisma migrate dev --name init. Aplica em dev DB. npx prisma migrate deploy em CI/CD.