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Fiverr Pro
English
$
USD
I will write sql queries, design databases, and optimize mysql performance
Hi! I'm Maria, I am passionate about turning raw data into clear, useful insights.I specialize in:
📊 Business dashboards and data visualization
📈 Data analysis and reporting
🗄️ SQL queries and data...
About this Gig
Need a reliable database built or messy SQL cleaned up? I design efficient, well-structured databases and write optimized queries that just work.
What I can do for you:
Design relational database schemas (ERDs, normalization)
Write complex SQL queries (JOINs, subqueries, GROUP BY, HAVING)
Optimize slow queries for better performance
Set up and structure MySQL databases from scratch
Debug existing database issues and clean up data
My background:
I'm a Bioinformatics student with hands-on coursework in Database Systems, and I've built real projects like a multi-table Hospital Patient Database (Patients/Doctors schema with analytical SQL queries). I care about clean, scalable schema design not just queries that technically work.
Send me your requirements table structure, sample data, or business logic and I'll deliver a clean, well-documented solution.
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Database type:
Centralized database
Platform:
MySQL
Expertise:
DDL
•
DML
•
Normalization
•
Query optimization
My Portfolio
FAQ
What SQL tool do you use?
I use MySQL and MySQL Workbench.
Can you help with beginner level databases?
Yes absolutely! I love helping students and beginners with their SQL problems.
How will you send me the work?
I will send you the complete SQL queries in a text file along with screenshots of the results.
Do you work with databases other than MySQL?
My core expertise is MySQL, but I'm comfortable adapting standard SQL to similar systems
Will I get the schema/ER diagram too?
es, documentation of the schema is included on Standard and Premium packages.
