I will design mysql and postgresql databases and write sql queries

Ireland

I speak English, Chinese, French

1 order completed

AI Automation and Software Developer, Agents, APIs, RAG

I build AI automation, AI agents, RAG systems, API integrations, and full-stack AI applications that solve real business problems. I help businesses automate workflows, connect APIs and tools, build ...
About this Gig

Do you need a well-structured relational database or accurate SQL queries for your application, website, or academic project?


I will design a clean MySQL or PostgreSQL database based on your requirements.


My services include:


  • Relational database design
  • ER diagram and schema design
  • Tables, columns, and data types
  • Primary and foreign keys
  • One-to-one, one-to-many, and many-to-many relationships
  • Database normalization
  • CREATE TABLE scripts
  • SELECT, INSERT, UPDATE, and DELETE queries
  • JOINs, subqueries, and aggregate queries
  • Views, constraints, and basic indexes
  • SQL query debugging and basic optimization


You will receive:


Complete SQL scripts

ER diagram

Organized database schema

Clearly structured SQL queries

Basic documentation and explanations


I work with MySQL and PostgreSQL databases for users, products, orders, bookings, inventory, messaging, e-commerce, and other custom systems.


Please contact me before ordering if you need database migration, large data import, production server access, advanced performance tuning, or more tables and queries than your selected package includes.


Each package covers the stated number of tables and SQL queries. Additional requirements may need

Database type:

Relational database

Platform:

MySQL

PostgreSQL

Expertise:

Design

ERD

Normalization

SQL

My Portfolio