I will write, debug and optimize sql queries for oracle databases

France

I speak English, Arabic, French

Cybersecurity Engineer

I am a Cybersecurity Engineer with 5+ years of experience in IT engineering and software development. I specialize in risk management using EBIOS RM, GRC, and digital forensics. My background allows m...
About this Gig

Need help with an Oracle SQL query?

I can help you write, debug and improve SQL queries for your database projects.

With professional experience working with Oracle database environments, I offer practical SQL assistance for development and troubleshooting tasks.

My services include:

  • Writing SQL queries
  • Debugging existing queries
  • SELECT statements and JOIN operations
  • Subqueries and filtering
  • Aggregations and GROUP BY
  • Query readability improvements
  • Basic query performance analysis
  • Understanding and troubleshooting SQL errors

My goal is to provide accurate, readable and maintainable SQL solutions.

Please share your database structure, sample data (anonymized) and expected output before ordering.

Important: I work with SQL queries and scripts. Database administration, production database access and complex performance tuning are not included unless agreed beforehand.

Database type:

Centralized database

•

Distributed database

Platform:

BigQuery

•

MariaDB

•

MongoDB

•

MySQL

Expertise:

SQL

•

NoSQL

•

Big data

•

Query optimization