You will get professional SQL queries and accurate data extraction
Project details
You will receive accurate and reliable SQL solutions designed to help you get the information you need from your data.
Many businesses collect large amounts of data but struggle to answer important questions such as:
• Which products generate the most revenue?
• Which customers are most valuable?
• How is the business performing over time?
• What information should be included in a report or dashboard?
As a Data Analyst with experience in SQL, Excel, Python, and business analytics, I help transform raw data into clear and actionable information.
My services include:
✓ Custom SQL queries
✓ Data extraction and reporting
✓ Query debugging and optimization
✓ Data validation and quality checks
✓ Analysis-ready datasets
✓ Support for dashboards and business reporting
Whether you need a simple query, a business report, or help understanding your data, my goal is to provide accurate results, clear communication, and solutions that help you make better decisions.
Many businesses collect large amounts of data but struggle to answer important questions such as:
• Which products generate the most revenue?
• Which customers are most valuable?
• How is the business performing over time?
• What information should be included in a report or dashboard?
As a Data Analyst with experience in SQL, Excel, Python, and business analytics, I help transform raw data into clear and actionable information.
My services include:
✓ Custom SQL queries
✓ Data extraction and reporting
✓ Query debugging and optimization
✓ Data validation and quality checks
✓ Analysis-ready datasets
✓ Support for dashboards and business reporting
Whether you need a simple query, a business report, or help understanding your data, my goal is to provide accurate results, clear communication, and solutions that help you make better decisions.
Database Type
MySQL, MS SQL, SQLite, PostgreSQLWhat's included
| Service Tiers |
Starter
$25
|
Standard
$50
|
Advanced
$100
|
|---|---|---|---|
| Delivery Time | 2 days | 3 days | 5 days |
Number of Revisions | 1 | 2 | 3 |
Number of Queries | 1 | 3 | 3 |
Query Debugging | - | ||
Query Optimization | - | ||
Query Scheduling | - | - | |
Query Analysis | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$10 - $25
Additional Revision
+$10
Additional Query
(+ 1 Day)
+$15
Query Debugging
(+ 1 Day)
+$15
Query Optimization
(+ 1 Day)
+$20
Query Scheduling
(+ 2 Days)
+$25
Database Review & Recommendations
(+ 1 Day)
+$25Frequently asked questions
About Claudenilson
Data Analyst | SQL Queries, Dashboards & Data Cleaning
Recife, Brazil - 9:12 pm local time
I help companies understand what is really happening in their data by combining strong analytical thinking, clean data practices, and clear visual communication.
What I do best:
Data cleaning and preparation (Excel, SQL & Python)
Exploratory Data Analysis (EDA) with business context
Dashboards and reports (Power BI, charts, KPIs)
Turning numbers into actionable insights, not just charts
I’ve worked with real-world datasets involving thousands of records, following a structured analytical process that mirrors how data is handled in real companies — from raw data to insights and recommendations.
Background & strengths:
Degree in Data Science
Experience working in an international environment using English daily
Strong focus on business questions, not just technical execution
Clear communication of findings for non-technical stakeholders
If you’re looking for someone who doesn’t just analyze data, but explains what it means and how to use it, I’d be happy to help.
Let’s turn your data into decisions.
Steps for completing your project
After purchasing the project, send requirements so Claudenilson can start the project.
Delivery time starts when Claudenilson receives requirements from you.
Claudenilson works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements Review
Review the project requirements, data structure, and expected outcome.
Query Development
Create and test SQL queries based on the business requirements.