I will write, fix and optimize sql queries for your database

Need help with a slow SQL query, a database error, or a query that doesn't return the expected results?

I'm a Data Engineer with 5+ years of experience working with SQL, Python, Oracle databases, and large-scale data processing systems.

What I can help you with:

• Write SQL queries based on your requirements
• Fix SQL syntax errors and incorrect results
• Optimize slow SQL queries
• Improve JOINs, subqueries, and aggregations
• Analyze query logic and suggest improvements
• Troubleshoot database-related SQL issues

What you'll receive:

• A corrected, optimized, or newly written SQL query
• A brief explanation of the changes
• Recommendations for improving performance when applicable

Basic package ($25):

One SQL query of moderate complexity, delivered within 2 days, including one revision.

My experience includes:

• Oracle SQL and PL/SQL
• SQL performance optimization
• Complex queries on large datasets
• ETL pipelines and data transformations

Before ordering:

Please share your database type, the SQL query or requirements, relevant table structures, and a description of the problem.

For complex queries or database-wide optimization, please contact me before placing an order so we can agree on the scope.

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