Common signs: messy tables, duplicate data and features that are hard to build. Usual causes: a schema that grew without design. What we do: redesign the schema and migrate data safely. What you get: a clean data model and tested migrations.
Our database schema redesign turns a schema that grew by accident into a clean data model: clear tables, proper relations, constraints that stop bad data, and indexes for real queries. A Codersarts database engineer designs the new schema and migrates your existing data safely. Fixed price from $599 with 3-day delivery.
Schema Redesign at a Glance
Item | Details |
|---|---|
Starting price | $599 for one database |
Delivery | 3 days |
Databases | PostgreSQL, MySQL, SQL Server, Supabase, MongoDB |
Includes | New schema, constraints, indexes and migration scripts |
Safety | Migrations tested on a copy before production |
What you get | A data model that fits your product |
Revisions | One revision round included |
What Is a Schema Redesign?
A schema redesign restructures how data is organized in a database: which tables exist, how they relate, which fields are required or unique, and how data is indexed. The goal is a model that matches how the product works, prevents inconsistent data and makes new features easier to build.
Signs You Need a Redesign
The same data is stored in several places and disagrees
JSON columns hold data you need to query
Adding features means awkward workarounds
Reports require complex scripts
Developers are unsure where data lives
Why Schemas Get Messy
Fast early decisions
Tables added feature by feature.
No constraints
Bad and duplicate data gets in.
JSON everywhere
Structured data stored as blobs.
Changing requirements
The product changed but the schema didn't.
Quick Checks You Can Try First
Draw your main tables and how they relate.
Find data stored in more than one place.
List queries that are hard to write.
Back up the database before any change.
If the problem remains, our engineers take it from there.
How We Redesign Your Schema
Review. We map tables, data and queries.
Design. We draw the new model with relations and constraints.
Plan migration. We write step-by-step migration scripts.
Test. We run migrations on a copy and verify data.
Update the app. We adjust queries where needed.
Deploy. We migrate production with a rollback plan.
What You Get
A new schema diagram
Migration scripts
Constraints and indexes
Verified migrated data
Notes on the new model
Example result (illustrative)
A marketplace stored orders, items and statuses in one wide table with JSON fields, and reports disagreed with the dashboard. We split it into orders, order items and status history with foreign keys and constraints. Reports now come from simple SQL and match the app.
What Is Included and Not Included
Included | Not included |
|---|---|
One database | Many databases |
Schema design and migrations | Rewriting the whole app |
Query updates for changed tables | Hosting costs |
One revision round | Ongoing database management |
Pricing for Schema Redesign
Package | Best for | Starting at | Delivery |
|---|---|---|---|
Schema review | Findings and recommended model | $199 | 1 day |
Redesign | New schema and migration for one database | $599 | 3 days |
Large redesign | Many tables or services | Custom quote | Agreed with you |
You get a fixed quote after we review your setup. You approve the scope before any payment.
Who This Is For
Apps whose data model grew without design
Teams with inconsistent data
Products adding reporting or analytics
Apps built quickly or with AI tools
What We Need From You
Database access or a schema export
Repository access
Main features and reports
A test environment
Code and data privacy
We sign an NDA on request, work with the least access needed, and never keep copies of your data after delivery. You own all code, configuration and notes.
Key Terms Explained
Schema: the structure of tables and fields
Foreign key: a link between related tables
Constraint: a rule that stops invalid data
Migration: a scripted change to the schema or data
Common Mistakes We Avoid
Redesigning without migrating existing data properly
Changing production without testing on a copy
Removing columns the app still uses
Over-normalizing simple data
Need More Than One Task?
Need full data architecture help? See Schema Design. Or use Prepaid Developer Hours to cover several tasks from one prepaid balance.
Related Tasks
Database Index & Query Tuning for speed
Move localStorage Data to Database for browser-stored data
Backup & Restore Setup before major changes
Frequently Asked Questions
Will a redesign cause downtime?
Usually little or none. Migrations are planned in steps, and big changes can run in the background.
Can you redesign a MongoDB schema?
Yes, or help move to a relational database if that fits better.
Do we need to rewrite the app?
No. We update the queries that touch changed tables.
How do you protect existing data?
By testing migrations on a copy, verifying counts and keeping a rollback plan.
Give Your Product a Data Model That Fits
Share your schema and the features that hurt most, and a Codersarts database engineer will design a cleaner model.