Declarative, not migrations
You write the final shape of your schema in SQL-flavoured DDL — no ALTER
steps, no migration files to number and order. NSchema diffs it against the
live database and computes the plan.
NSchema
Describe the schema you want. NSchema computes and applies the migration to get there — Terraform, for your database schema.
Why NSchema?
Section titled “Why NSchema?”Plan before you apply
Every run previews the exact changes first, Terraform-style. Save a plan and apply that exact file later, so what you reviewed is what runs.
Safe by default
Destructive changes error out unless you opt in. Drift detection, offline planning against persisted state, and idempotent deployment scripts round it out.
Adopt any database
Point import at an existing PostgreSQL database and NSchema writes your
schema out as DDL, ready to check in and manage from there.
Start here
Section titled “Start here” What is NSchema? The idea, the model, and who it's for.
Installation Install the nschema global tool.
Quickstart From empty directory to applied schema in five minutes.
CLI reference Every command, flag, and exit code.
DDL language How to declare schemas, with the full grammar.
Embedding the library Use the NSchema.Core engine directly from .NET.