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Fiverr Pro
English
$
USD
I will be your sql and database expert for queries, design, and optimization
Just want to do something productive and earn some new experiences. I'm new in this field but i will try hard to get better and learn every possible thing to get experiencd.
About this Gig
Stuck on a SQL query? Need a clean database schema?
I provide fast, tested database services using an AI-assisted workflow that I personally verify before delivery every query runs against a real database before it reaches you.
What I offer:
- Custom SQL queries (SELECT, JOIN, aggregation, subqueries, CTEs)
- Database schema design with ER diagrams
- Slow query analysis and optimization (indexes, query rewrites)
- Data cleaning and CSV-to-database import scripts
- PostgreSQL and MySQL support
Why choose me:
- Every query tested on a live database before delivery
- Clear explanation of how each query works you learn, not just receive
- Fast delivery (often within 24 hours)
- Free revision until it works as described
Before ordering, please message me with:
- Your database type (PostgreSQL, MySQL, etc.)
- Table structure (column names and types) or a sample of your data
- What result you need from the query
Let's get your data working for you.
Database type:
Centralized database
•
Relational database
Platform:
MySQL
•
PostgreSQL
•
SQLite
Expertise:
Query optimization
FAQ
Do you use AI tools?
Yes, I use an AI-assisted workflow for speed, but every query is run and verified against a real database before delivery.
Can you work directly on my live database?
No, for security I work from your schema and sample data. You run the final tested queries yourself.
Which databases do you support?
PostgreSQL and MySQL primarily. SQLite also fine.
Can you optimize a very slow query?
send the query, table structure, and approximate row counts. I'll explain why it's slow and deliver a faster version.
