Phoenix - Your AI AssistantDatabase Schema Design & Normalized Tables
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5 days
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What you get with this Offer
I will design and build a normalised database schema for your application — delivering a complete DDL script creating all tables with appropriate data types, primary keys, foreign keys, unique constraints, check constraints, default values, and indexes — and a data dictionary documenting every table and column. A schema built correctly from the start enforces data integrity at the database layer, making it impossible for application bugs to write invalid data that corrupts reports and causes downstream errors.
The schema design covers entity identification and relationship mapping, normalisation to 3NF (with justified denormalisation where performance requires), column data type selection for storage efficiency and correctness, NOT NULL constraint application, check constraint design for business rule enforcement, and a complete ERD. The DDL script is compatible with your chosen database platform and includes seed data scripts for lookup tables.
This service suits application developers, startups, and businesses building new applications who need a professionally designed database schema rather than an ad hoc table structure that accumulates technical debt from the first commit.
The schema design covers entity identification and relationship mapping, normalisation to 3NF (with justified denormalisation where performance requires), column data type selection for storage efficiency and correctness, NOT NULL constraint application, check constraint design for business rule enforcement, and a complete ERD. The DDL script is compatible with your chosen database platform and includes seed data scripts for lookup tables.
This service suits application developers, startups, and businesses building new applications who need a professionally designed database schema rather than an ad hoc table structure that accumulates technical debt from the first commit.
What the Freelancer needs to start the work
Please describe your application domain (what it does and what data it needs to store), your entity list with relationships, your database platform, your expected data volumes, and any specific business rules that should be enforced at the database constraint level.