I will write sql queries to analyze, clean and report your database
Excel,Data Analysis,Dashboard Design,Data Visualization,Power BI,SQL
About this Gig
Do you have a database full of raw data and need meaningful insights, clean reports, or complex queries written fast and accurately?
I will write professional SQL queries to extract, analyze, clean and report your data exactly the way you need it.
What I can do with SQL:
Write SELECT, JOIN, GROUP BY, HAVING queries Aggregate reports SUM, COUNT, AVG, MAX, MIN Subqueries and nested queries Data cleaning with SQL remove duplicates, fix nulls Window functions ROW_NUMBER, RANK, LAG, LEAD Stored procedures and views Performance optimized queries for large datasets Export results to Excel or CSV Full documentation of every query written
I work with:
- MySQL
- Microsoft SQL Server (T-SQL)
- SQLite
Perfect for:
- Business owners who need data reports from their database
- Developers who need complex queries written
- Students who need SQL assignments completed
- Data analysts who need query optimization
- E-commerce stores needing sales and inventory reports
What kind of reports I can build:
- Sales performance reports
- Customer behavior analysis
- Inventory and stock reports
- Employee and HR data queries
- Financial summary reports
- Monthly and yearly trend analysis
Why choose me:
- Clean,
FAQ
Q: What information do you need from me to start?
A: I need your table structure (column names and data types), sample data or CSV, and a description of what output you want. A screenshot of your database is also fine.
Q: Which SQL databases do you support?
A: I support MySQL, PostgreSQL, Microsoft SQL Server, SQLite, and Google BigQuery.
Q: Will you explain the queries you write?
A: Yes! Every query comes with clear comments explaining what each part does. You will understand exactly how it works.
Q: What if I don't have a real database — just a CSV file?
A: No problem. I can load your CSV into a database, write the queries, and deliver both the SQL file and the results.
Q: Can you optimize slow queries?
A: Yes, query optimization is included in Standard and Premium packages.

