You will get clean, structure and query your business data with SQL
Project details
I help businesses turn messy spreadsheets and databases into clean, reliable data you can actually trust. With 7 years in banking and finance handling transactional data, plus hands-on SQL experience, I write efficient queries, remove duplicates and errors, and structure your data for reporting or analysis.
I start by reviewing your data and confirming exactly what you need - a cleanup, a set of queries, or both - before writing any code, so there are no surprises in scope.
This works well for small business owners, startups, and teams who need their data cleaned, joined, or queried but do not have an in-house database analyst.
Message me with a sample of your data or database schema and what you are trying to find out, and I will confirm scope before you order.
I start by reviewing your data and confirming exactly what you need - a cleanup, a set of queries, or both - before writing any code, so there are no surprises in scope.
This works well for small business owners, startups, and teams who need their data cleaned, joined, or queried but do not have an in-house database analyst.
Message me with a sample of your data or database schema and what you are trying to find out, and I will confirm scope before you order.
Database Type
MySQL, MS SQL, PostgreSQL, MongoDBWhat's included
| Service Tiers |
Starter
$100
|
Standard
$200
|
Advanced
$400
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 0 | 0 | 0 |
Number of Queries | 5 | 15 | 30 |
Query Debugging | - | - | - |
Query Optimization | - | - | - |
Query Scheduling | - | - | - |
Query Analysis | - | - | - |
Source Code | - | - | - |
Frequently asked questions
About Andrii
Business Data Analyst | Python & SQL | Power BI & Tableau Dashboards
Dublin, Ireland - 11:48 pm local time
What that combination means for you in practice:
I handle the full cycle myself: cleaning and structuring raw data with Python/SQL, then building it into a Power BI or Tableau dashboard — no handoffs between a "data person" and a "dashboard person." Before I start building, I clarify what decisions the dashboard needs to support, so you get something your team actually uses, not just a technically impressive chart.
Recent project example: I built an interactive Tableau dashboard analyzing 144M+ streaming views, using dynamic parameters and period-based filtering to surface audience retention trends.
I'm currently completing a Level 7 diploma in Data Analytics for Business at CCT College Dublin (Python, statistics, ML fundamentals), which keeps my technical skills current alongside my finance background.
Let's talk about your project — I'm happy to share a draft dashboard structure before starting full development, so we're aligned early.
Steps for completing your project
After purchasing the project, send requirements so Andrii can start the project.
Delivery time starts when Andrii receives requirements from you.
Andrii works on your project following the steps below.
Revisions may occur after the delivery date.
Review your data & requirements
I look at your data structure and confirm the queries or cleanup you need.
Write & test SQL queries
I write, test and optimize the SQL queries against your database or file.