You will get custom MySQL queries, CTEs, Views, and stored procedures for your database
Project details
🎉 LAUNCH OFFER — First 3 clients receive 20% off.
Message me before ordering to claim your discount.
Do you have a MySQL database but struggle to get the exact data you need? Are your queries slow or returning wrong results? I will write clean, efficient, and well-commented SQL queries tailored exactly to your requirements.
What I can write for you:
• Complex multi-table JOINs (INNER, LEFT, RIGHT, FULL OUTER)
• Common Table Expressions (CTEs) for readable, modular query logic
• Recursive CTEs for hierarchical or parent-child data structures
• SQL Views for simplified, reusable data access
• Window functions: RANK, DENSE_RANK, ROW_NUMBER, LAG, LEAD, NTILE
• Stored procedures and functions for automated database logic
• Subqueries and correlated queries for complex filtering
• Query optimization — fixing slow queries using EXPLAIN and indexing
What you will receive:
• SQL script file (.sql) with all queries, fully commented
• Plain-English explanation of what each query does
• Tested output confirming correct results
Share your table structure and tell me what you need — I will handle the rest. Not sure where to start? Message me first and I will guide you free of charge.
Message me before ordering to claim your discount.
Do you have a MySQL database but struggle to get the exact data you need? Are your queries slow or returning wrong results? I will write clean, efficient, and well-commented SQL queries tailored exactly to your requirements.
What I can write for you:
• Complex multi-table JOINs (INNER, LEFT, RIGHT, FULL OUTER)
• Common Table Expressions (CTEs) for readable, modular query logic
• Recursive CTEs for hierarchical or parent-child data structures
• SQL Views for simplified, reusable data access
• Window functions: RANK, DENSE_RANK, ROW_NUMBER, LAG, LEAD, NTILE
• Stored procedures and functions for automated database logic
• Subqueries and correlated queries for complex filtering
• Query optimization — fixing slow queries using EXPLAIN and indexing
What you will receive:
• SQL script file (.sql) with all queries, fully commented
• Plain-English explanation of what each query does
• Tested output confirming correct results
Share your table structure and tell me what you need — I will handle the rest. Not sure where to start? Message me first and I will guide you free of charge.
Database Type
MySQL, SQLite, PostgreSQLWhat's included
| Service Tiers |
Starter
$5
|
Standard
$10
|
Advanced
$20
|
|---|---|---|---|
| Delivery Time | 1 day | 3 days | 5 days |
Number of Revisions | 1 | 2 | 3 |
Number of Queries | 3 | 8 | 20 |
Query Debugging | - | - | - |
Query Optimization | - | - | - |
Query Scheduling | - | - | - |
Query Analysis | - | - | - |
Source Code | - | - | - |
Optional add-ons
You can add these on the next page.
Additional Revision
+$5
Additional Query
(+ 1 Day)
+$5
Query Debugging
(+ 1 Day)
+$5
Query Documentation PDF
(+ 1 Day)
+$8Frequently asked questions
About Ashish
MySQL DB Designer & Python ETL Engineer | SQL | Pandas | SQLAlchemy
Karachi, Pakistan - 11:45 am local time
Message me before ordering to claim your discount.
Is your database slow, messy, or built on spreadsheets? I design clean MySQL schemas and build Python pipelines that actually work — tested, documented, and delivered on time.
I'm a full-time Data Engineer at a US-based company (Biome Analytics, Oct 2021–present) with 4+ years working daily with MySQL, Python, ETL pipelines, and data validation at production scale.
━━━━━━━━━━━━━━━━━━━━━━━━━━━
🗄️ MYSQL DATABASE DESIGN
━━━━━━━━━━━━━━━━━━━━━━━━━━━
· Schema design from scratch
· ER diagrams (MySQL Workbench)
· Normalization to 3NF · Stored procedures & triggers
· Indexes & foreign key constraints
· Query optimization with EXPLAIN
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🔍 CUSTOM SQL QUERIES
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· Common table expressions (CTEs)
· Window functions (RANK, LAG, NTILE)
· Multi-table JOINs
· Subqueries & correlated queries
· Views
· Stored procedures
MySQL · PostgreSQL · MS SQL Server
━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚙️ PYTHON ETL PIPELINES
━━━━━━━━━━━━━━━━━━━━━━━━━━━
· Extract: CSV, JSON, XML, Excel
· Transform and clean data with Pandas or Polars
· Load into MySQL via SQLAlchemy or mysql-connector
· Error logging & validation
· Debug and fix AI-generated Python and SQL scripts that aren't working correctly in your environment.
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💼 MY BACKGROUND
━━━━━━━━━━━━━━━━━━━━━━━━━━━
My database knowledge isn't from tutorials or online courses. I studied from "Database System Concepts" by Silberschatz, Korth & Sudarshan — the same textbook used in university computer science programs worldwide — combined with 4+ years of daily hands-on experience as a full-time Data Engineer at a US-based analytics company.
At work I build and maintain production ETL pipelines, validate ingested data, debug ingestion code, and design MySQL schemas that handle real business data every day.
What I deliver on Upwork is built the same way — properly structured, tested against real data, documented, and maintainable long after the project ends.
Ready to fix your data problem? Message me with a brief description
and I'll respond with a clear plan within a few hours.
Steps for completing your project
After purchasing the project, send requirements so Ashish can start the project.
Delivery time starts when Ashish receives requirements from you.
Ashish works on your project following the steps below.
Revisions may occur after the delivery date.
Understand your query requirements
Review your answers — what data you need, which database you use, and what the query should return. I'll ask follow-up questions if anything is unclear.
Write and optimize the SQL query
Build the query using best practices — CTEs, window functions, proper JOINs, and indexes where needed. All queries are tested before delivery.