Wahab A.
SQL Server | Oracle | MySQL Expert | Performance Tuning, ETL,Migration
Are your SQL queries running too slowly? Need help with ETL, reporting, or database migration? Looking for a reliable database expert who can solve problems efficiently and deliver clean, accurate results? I help businesses improve database performance, optimize SQL queries, build ETL workflows, and manage safe, accurate data migrations across SQL Server, Oracle, MySQL, and PostgreSQL. I can help with: • SQL query optimization and performance tuning • Stored procedures, functions, triggers, and packages • ETL development and data import/export processes • SQL Server, Oracle, MySQL, and PostgreSQL development • Data migration, validation, and transformation • SSIS, SSRS, and SSMS • Oracle Forms, Oracle Reports, BI Publisher, and Pro*C • Database troubleshooting, cleanup, and optimization I focus on practical solutions that improve speed, accuracy, and reliability. My goal is not just to write SQL, but to solve the business problem behind it. Why work with me? • Strong expertise across multiple database platforms • Oracle Certified Professional (Developer Track) • Master’s degree in Computer Science • Detail-oriented and quality-focused • Clear communication and dependable delivery I can support one-time fixes, ongoing database work, ETL projects, reporting solutions, and migration tasks. Let’s discuss your requirements and find the right solution for your project.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $1.9k
Billed in all: $283,180$283k
$635 in the last 6 months
Across 181 contracts
Earnings, last 30 days
Skill rankings: Top 16% in SQL Programming
Ranked by MRR among everyone on Upwork with the skill.
- #5Oracle Programming27 freelancers · 🇵🇰 #1Top 19%🇵🇰#1 of 7
- #9Query Tuning42 freelancers · 🇵🇰 #4Top 21%🇵🇰#4 of 10
- #12Stored Procedure Development72 freelancers · 🇵🇰 #4Top 17%🇵🇰#4 of 15
- #14Query Optimization69 freelancers · 🇵🇰 #3Top 20%🇵🇰#3 of 19
- #59Database Programming363 freelancers · 🇵🇰 #7Top 16%🇵🇰#7 of 44
- #65Oracle PLSQL399 freelancers · 🇵🇰 #10Top 16%🇵🇰#10 of 40
- #106Microsoft SQL Server Programming617 freelancers · 🇵🇰 #11Top 17%🇵🇰#11 of 73
- #106PostgreSQL Programming511 freelancers · 🇵🇰 #19Top 21%🇵🇰#19 of 60