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English
$
USD
I will clean your messy data and deliver verified sql and python analysis
SQL Data Cleaning and Verified Analysis Specialist
Hi! I'm a data analyst specializing in SQL and Python.
I help businesses with:
✓ Data cleaning & handling missing values
✓ Custom SQL query development
✓ Cross-verified analysis using Python and Pa...
About this Gig
Messy data, missing values, or duplicates slowing you down? I clean it and analyze it using PostgreSQL and Python and I verify every result two independent ways before you see it.
WHAT I OFFER:
- Data cleaning: duplicates, missing values, inconsistent formats, messy text/dates
- Custom SQL queries (PostgreSQL): joins, aggregations, window functions
- Python cross-verification: every key SQL result re-checked in Pandas
WHY THIS IS DIFFERENT:
Basic cleaning can be AI-generated now. What I bring is the judgment AI alone misses deciding whether duplicates are errors or real signal, catching silent bugs before they reach your report, and double-checking my own work instead of asking you to trust it blindly.
WHAT YOU GET:
- Clean, analysis-ready data
- Documented SQL queries
- Cross-verification notes
- Plain-English summary of findings
- Output in CSV, SQL file, or notebook
Portfolio examples available in gig images.
Let's turn your raw data into verified insights.
Database type:
Relational database
Platform:
PostgreSQL
Expertise:
SQL
•
DDL
•
DML
•
DQL
FAQ
What data formats do you accept?
I work with CSV, Excel, PostgreSQL, JSON. You can upload your sample files or schemas directly to Fiverr.
How do I provide the data?
You can upload files directly to Fiverr, or give me secure database access. All your data is kept confidential.
Will the SQL work on my database?
Yes! I write tested queries tailored to your PostgreSQL database. I carefully check the syntax and verify the results before delivery.
How long does it take?
My delivery time is 3 days. This ensures I have plenty of time to thoroughly test your queries and verify the data accuracy before handing them over.
How is this different from just using ChatGPT myself?
I verify every result two independent ways before delivery, and I make the judgment calls (like how to handle ambiguous duplicates or missing data) that generic AI prompting tends to skip or get wrong silently.
