You will get write sql or fix sql queries in mysql, sql server, postgresql, and oracle


Project details
I am a database developer with experience of 6 years, working with Big-data, data visualization and rational SQL databases, writing any kind of query you can think of.
I will help you do anything you need in SQL:
MySQL Queries
SQL Server Queries
PostgreSQL
SQLite
Oracle Queries (SQL PLUS)
Fix your existing query
Write a brand new query for you following your business/technical logic.
Help you think about new approaches and Modeling(improve the table schemas) to your data.
If you want to design database schema please ask me for the custom request. I will take care of all your needs.
I will help you do anything you need in SQL:
MySQL Queries
SQL Server Queries
PostgreSQL
SQLite
Oracle Queries (SQL PLUS)
Fix your existing query
Write a brand new query for you following your business/technical logic.
Help you think about new approaches and Modeling(improve the table schemas) to your data.
If you want to design database schema please ask me for the custom request. I will take care of all your needs.
Database Type
MySQL, MS SQL, Oracle, SQLite, PostgreSQLWhat's included
| Service Tiers |
Starter
$20
|
Standard
$40
|
Advanced
$80
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 4 days |
Number of Revisions | Unlimited | Unlimited | Unlimited |
Number of Tables Added | 2 | 4 | 7 |
Schema Diagram | - | ||
Permissions Setup | - | - | - |
Import/Export Data | |||
Admin Panel Setup | - | - | - |
Frequently asked questions
About Ridwanullahi
Data Analyst & Visual Designer| Excel,SQL,Power BI, Tableau, Dashboard
Oyo, Nigeria - 12:30 am local time
I’m a skilled Data Analyst and Graphic Designer with deep experience in tools like Excel, SQL, Power BI, Tableau, and design platforms like Canva, Photoshop, and Illustrator. I specialize in translating complex datasets into clean, visually compelling dashboards, reports, and infographics the kind of visual “fatigues” that capture attention and drive decision-making.
Here’s what I can help you with:
• Data Cleaning & Transformation
• Custom Dashboards (Power BI/Tableau)
• Interactive Data Visuals & KPIs
• SQL Queries & Data Extraction
• Excel Reports & Automation
• Infographic Design
• Social Media Post Design
• Business Pitch Decks
• Branded Data Presentations
• PDF/CSV to Excel Conversion
Whether it’s for internal business use, presentations, or external clients your data will look as good as it works.
Let’s bring data to life with clarity and creativity!
Steps for completing your project
After purchasing the project, send requirements so Ridwanullahi can start the project.
Delivery time starts when Ridwanullahi receives requirements from you.
Ridwanullahi works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Gathering
I’ll review your request to understand the goal — whether it's writing a new query, fixing an existing one, or optimizing performance. I may ask follow-up questions for clarity.
Access & Environment Setup
You’ll provide: A sample dataset or DB schema (or grant read-only access) Details of the problem or expected output Error messages (if fixing a broken query)