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Fiverr Pro
English
$
USD
I will design databases, write complex sql queries, and optimize schema
FullStack and Backend Developer ,Java Spring Boot, Python Flask, DotNET
I build secure, high-performance web and desktop applications tailored to your business needs. Whether you need a robust REST API in Java Spring Boot, a dynamic web platform using Python Flask, or a c...
About this Gig
A fast, scalable application starts with a rock-solid database architecture. Poorly structured schemas lead to slow queries, data redundancy, and system bottlenecks.
I offer professional database design, relational schema engineering, and SQL query optimization services across MySQL, PostgreSQL, and MS SQL Server. Whether you are launching a new project that needs a normalized database layout or need to optimize slow queries in an existing production database, I deliver secure, efficient, and clean database solutions.
️ What I Offer:
- Relational Schema Design: Normalized ERD models engineered up to Third Normal Form (3NF) to eliminate data redundancy.
- Complex SQL Queries & Joins
- Stored Procedures & Triggers: Automated backend database workflows, constraints, and audit logging.
- Database Optimization & Indexing: Analyzing execution plans, creating indexes, and refactoring slow queries for maximum speed.
- Cross-Platform Expertise: Natively fluent in MySQL, PostgreSQL, and MS SQL Server.
- ERD Diagrams & Documentation: Professional visual Entity-Relationship Diagrams ready for development
Databases: PostgreSQL, MySQL, MS SQL Server
- Management Tools: pgAdmin, MySQL Workbench, SQL Server
FAQ
Which database engines do you support?
I specialize in MySQL, PostgreSQL, and MS SQL Server. I write dialect-specific SQL scripts tailored to your target engine
Will I receive a visual ERD diagram with my order?
Yes! Standard and Premium packages include a high-resolution visual Entity-Relationship Diagram (ERD) detailing primary keys, foreign keys, and cardinalities.
Can you help fix slow SQL queries in an existing database?
Absolutely. I analyze your query execution plans, missing indexes, and schema design to optimize response times.
Do you provide sample data scripts for testing?
Yes, I can include INSERT scripts populated with realistic dummy data so you can test your application immediately.
What do I need to provide to start a new database design?
A summary of your application's entities (e.g., Users, Bookings, Products), business rules, and how data flows through your app.
