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$
USD
I will turn your raw data into business insights using sql
About this Gig
Most SQL freelancers hand you a script and disappear. I deliver answers.
For this project, I built a complete SQL analytics system on 1.7M+ records from scratch. That means designing the schema, bulk-loading the data, writing 16 business-driven queries, engineering stored procedures, setting up audit triggers, and optimizing with 21 strategic indexes, all verified with EXPLAIN ANALYZE.
But the technical work is only half of it. Every query was written to answer a real business question: revenue growth, traffic channel ROI, customer segmentation, and refund behavior. The output wasn't just SQL; it was board-ready findings that a non-technical stakeholder could act on immediately.
What sets this apart:
-1.7M+ records handled with production-grade performance
-Advanced SQL CTEs, LAG, RANK, NTILE, stored procedures
-Zero-error delivery with audit triggers and validation logic
-Business insights framed for decision-makers, not just developers
If you need someone who can think in both SQL and business -- let's talk.
My Portfolio
Other Data Analytics Services I Offer
FAQ
Do you work with my existing database or do I need to set one up?
Both. I can work with your existing PostgreSQL database or set up a fresh schema from scratch depending on your needs.
Do you provide the results or just the queries?
Both. You get the SQL scripts plus a plain-English summary of findings so the insights are usable by non-technical stakeholders too.
How do you handle data privacy?
I treat all client data as strictly confidential. I'm happy to sign an NDA before the project begins if required.
What if my data is messy or incomplete?
That's normal. I'll assess your data first, flag any issues, and handle cleaning before the analysis begins.
