SQL to Prisma Schema
LiveConvert SQL CREATE TABLE statements to Prisma schema models instantly.
Understanding SQL (Structured Query Language)
Prisma is a modern TypeScript ORM that uses a schema file (schema.prisma) to define data models, relationships, and database configuration. Migrating existing SQL databases to Prisma requires translating CREATE TABLE statements, constraints, indexes, and relationships into Prisma schema syntax. The conversion maps SQL column types to Prisma scalar types, foreign keys to relation directives, and unique/index constraints to Prisma model attributes.
Use this free SQL to Prisma converter to transform SQL CREATE TABLE statements into clean Prisma schema model definitions. Supports MySQL, PostgreSQL, and SQLite column types with automatic mapping to Prisma types. Handles primary keys, foreign keys, unique constraints, default values, nullable fields, indexes, and relations. Generates idiomatic Prisma schema code ready for your prisma/schema.prisma file — no manual rewriting needed.
The Devkitr SQL to Prisma Schema Converter transforms SQL DDL (CREATE TABLE statements) into Prisma schema model definitions. Paste your SQL schema to get Prisma models with proper field types, @id, @unique, @relation, and @default directives — ready for schema.prisma.
In a typical development workflow, SQL to Prisma Schema becomes valuable whenever you need to convert sql create table statements to prisma schema models instantly. Whether you are working on a personal side project, maintaining production applications for a company, or collaborating with a distributed team across time zones, having a reliable browser-based conversion tool eliminates the need to install desktop software, write one-off scripts, or send data to third-party services that may log or retain your information. Since SQL to Prisma Schema processes everything locally on your device, your data stays private and your workflow stays uninterrupted — open a browser tab, paste your input, get your result.
Key Features
Table to Model Conversion
Converts SQL CREATE TABLE statements into Prisma model blocks with all columns mapped to Prisma scalar types.
Relationship Detection
Identifies foreign key constraints and generates Prisma @relation directives with correct field and reference mappings.
Index and Constraint Mapping
Converts SQL PRIMARY KEY, UNIQUE, INDEX, and CHECK constraints to Prisma @id, @unique, @@index, and custom validation.
Default Value Translation
Maps SQL DEFAULT values to Prisma @default directives: autoincrement(), now(), uuid(), dbgenerated(), and literal values.
How to Use SQL to Prisma Schema
Paste SQL Schema
Enter CREATE TABLE statements with column definitions, constraints, foreign keys, and indexes.
Select Database
Choose your database provider (PostgreSQL, MySQL, SQLite, SQL Server) for correct type mapping.
Review Prisma Schema
Check model names, field types, relation definitions, and constraint mappings in the generated schema.
Copy Schema
Copy the Prisma model definitions into your schema.prisma file alongside your datasource and generator blocks.
Use Cases
Database Introspection Bootstrap
Convert an existing SQL schema to Prisma models as a starting point, then refine the schema before running prisma db pull.
SQL to TypeScript ORM Migration
Generate Prisma schema from SQL DDL when migrating from Sequelize, TypeORM, or Knex to Prisma.
Documentation Generation
Convert SQL schemas to Prisma notation for documentation that shows both the SQL and Prisma representations.
Schema Design Review
Convert SQL schema proposals to Prisma format for review by teams that use Prisma as their primary data modeling tool.
Pro Tips
After conversion, run prisma format to apply Prisma's standard formatting to the generated schema.
Review relation names — Prisma requires explicit @relation names when a model has multiple relations to the same table.
Add @@map("sql_table_name") if you want your Prisma model names to differ from the original SQL table names.
Prisma uses @db.VarChar(255) native type attributes when the default type mapping does not match your SQL column types.
Common Pitfalls
Not mapping SQL ENUMs to Prisma enums
Fix: SQL ENUM types should be converted to Prisma enum blocks. Using String instead of enum loses the constraint validation.
Missing relation models for junction/pivot tables
Fix: SQL many-to-many junction tables need explicit models in Prisma (implicit many-to-many) or separate model definitions with two @relation fields.
Ignoring SQL column defaults that need @default directives
Fix: SQL DEFAULT CURRENT_TIMESTAMP becomes @default(now()), DEFAULT 0 becomes @default(0). Missing defaults change application behavior.
Frequently Asked Questions
QHow do I convert SQL to Prisma schema?
Paste your SQL CREATE TABLE statements and the converter instantly generates Prisma schema models with proper types, relations, and directives.
QWhich SQL dialects does the SQL to Prisma converter support?
MySQL, PostgreSQL, and SQLite CREATE TABLE syntax. Column types are automatically mapped to the appropriate Prisma scalar types.
QDoes it handle foreign keys and relations?
Yes. Foreign key constraints are converted to Prisma @relation directives with proper field referencing and relation names.
QWhat about indexes and unique constraints?
Unique constraints become @unique, primary keys become @id, and composite indexes are converted to @@index directives in your Prisma schema.
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