You will get Professional Data Cleaning with SQL
Project details
Turn your data chaos into clarity. I specialize in deep data cleaning using SQL to fix duplicates, formatting errors, and null values. Unlike basic spreadsheet cleaning, I provide optimized PostgreSQL scripts and visual Looker Studio reports that ensure your analysis is 100% accurate and professional.
Data Tool
SQLWhat's included
| Service Tiers |
Starter
$30
|
Standard
$90
|
Advanced
$180
|
|---|---|---|---|
| Delivery Time | 1 day | 3 days | 5 days |
Number of Revisions | 1 | 2 | 2 |
Optional add-ons
You can add these on the next page.
Interactive Looker Studio Dashboard
(+ 1 Day)
+$40About Ayyoub
SQL Data Cleaning & Looker Studio Dashboards
Chlef, Algeria - 7:19 am local time
I am a Data Analyst focused on cleaning and standardizing data. Unlike manual data entry clerks, I use complex SQL queries, Regex and scripting to clean thousands of records efficiently and accurately, ensuring your data is structured and ready for visualization in Google Looker Studio.
How I can help you:
Deduplication: Identifying and removing duplicate rows using advanced SQL techniques (Window functions, CTEs).
Standardization: Fixing inconsistent date formats, phone numbers, and mixed-case text strings.
Data Visualization: Translating clean datasets into clear, actionable dashboards using Google Looker Studio. I bridge the gap between technical data logic and accessible business insights.
Data Integrity: Identifying "orphan" records and enforcing foreign key constraints.
Migration Prep: Cleaning CSV/Excel data before it gets imported into your production database.
My Toolkit:
Database: PostgreSQL (pgAdmin, DBeaver)
Visualization: Google Looker Studio
Techniques: Regex, Joins, Subqueries, Stored Procedures, and Data Modeling.
I treat your data with extreme care. I always operate on backups or staging tables first to ensure zero data loss.
Let's turn your messy data into a reliable asset. Click "Invite to Job" to discuss your database needs.
Steps for completing your project
After purchasing the project, send requirements so Ayyoub can start the project.
Delivery time starts when Ayyoub receives requirements from you.
Ayyoub works on your project following the steps below.
Revisions may occur after the delivery date.
Data Audit & Requirements
I connect to your database via DBeaver or review your files to identify duplicates, NULLs, and formatting errors. We’ll confirm your goals to ensure the SQL logic perfectly aligns with your specific business needs and reporting rules.
SQL Scripting & Transformation
Using PostgreSQL, I write custom scripts to clean and transform your data. This includes standardizing text, fixing data types, and performing complex JOINs to turn messy raw data into a structured, high-performance database schema.