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Workflows
Coding workflows · Database migrations
03
A concrete starting point
Plan a database column change around the existing rows. Check null values, prepare a backfill and verify a rollback on a disposable copy before touching production data.
Define the change
Describe the input, expected output and boundaries that must stay intact.
Inspect the work
Review the proposed edits and any commands before relying on their result.
Check the outcome
Compare actual behavior with the expected result. If a check fails, investigate it before applying more changes.
Database migrations
A concrete starting point
-- Inspect existing values before enforcing a constraint.
SELECT COUNT(*) FROM records WHERE status IS NULL;
-- Prepare a backfill and a reversible migration.
-- Test on a disposable database copy first.The example is a starting point for a real project, not a claim that generated code is already tested. Adjust paths, dependencies and expected behavior to match your application.