I will write sql queries for postgresql mysql and sqlite

Need a SQL query written, fixed or optimized?

I will write, debug, analyze, and optimize SQL queries for your database.

I can help with simple data retrieval as well as more advanced SQL tasks involving joins, aggregations, subqueries, CTEs, and window functions.

I can work with relational databases such as MySQL, PostgreSQL, SQLite, and Microsoft SQL Server.

My services may include:

• writing SQL queries
• fixing and debugging existing queries
• filtering, sorting, and aggregating data
• joins and subqueries
• CTEs and window functions
• query analysis and optimization
• extracting useful insights from your data

I focus on clear, accurate, and readable SQL code.

Please contact me before ordering if your task involves a large database, complex optimization, or production systems.