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English
$
USD
I will do sql data analysis and reporting for business decisions
Bringing Clarity and Confidence to Your Data Decisions
A Data Science Student with 1+ years of expertise in Data Analytics, transforming raw data into business insights that drives smart decisions.
I specialize in SQL, Python, Excel, and Power BI to clea...
About this Gig
Your database is full of answers. I'll write the SQL to extract them fast, clean, and business-ready.
As a Business Analyst with deep SQL expertise, I write queries that don't just pull data they answer real business questions. I work across MySQL, PostgreSQL, SQL Server, SQLite, and BigQuery.
What I can do for you:
- Complex SELECT queries with multi-table JOINs
- Window functions RANK, ROW_NUMBER, LAG/LEAD
- Aggregations, GROUP BY, HAVING for summary reports
- Database schema design with ERD diagrams
- Query performance tuning & index optimization
- Data cleaning & transformation inside SQL
- Automated reporting pipelines (SQL + Python/Excel)
Why work with me?
- Business Analyst mindset I write queries that answer the right question, not just any question
- I combine SQL with Python & Excel for end-to-end reporting
- All queries are optimized, readable, and production-ready
- Clear communication and fast turnaround
- 100% satisfaction or I'll fix it free
Message me before ordering share your database structure and I'll confirm scope and the right package.
My Portfolio
FAQ
Do you need access to my live database?
No, I only need your schema (table/column structure) and a sample data export. I write and test queries locally using your structure, then deliver the final .sql files. You run them on your own database, so your data stays completely private and secure.
Which databases do you support?
MySQL, PostgreSQL, Microsoft SQL Server, SQLite, and Google BigQuery. I can also work with Oracle for standard queries. If you're unsure, just mention your tech stack and I'll confirm before you order.
Can you fix or optimize my existing slow queries?
Yes, query optimization is included from Standard upward. Share the slow query and your table structure and I'll diagnose the issue, add proper indexes, and rewrite it for performance.
Can you design a database from scratch?
Yes, that's in the Premium package. I'll design a normalized schema, create the ERD diagram, write all CREATE TABLE statements, and document the relationships between tables.
Will I be able to reuse or modify the queries myself?
Absolutely. Every query comes with clear inline comments explaining what each part does, so even non-developers can follow the logic and make small changes confidently.
