I will write and optimize sql queries and fix db2 database issues

Brazil

I speak Portuguese, English

Desenvolvedor Java e Angular, sistemas legados Delphi e DB2

Desenvolvedor com mais de 25 anos de TI. Hoje trabalho com Java, APIs REST, Angular e DB2, com longa experiência em Delphi e sistemas legados. Uso IA para agilizar código e documentação e sempre revis...
About this Gig

Need a SQL query written, a slow query fixed, or help with a DB2 database? I can help.


I am a developer with over 25 years in IT, working every day with DB2 and relational databases behind Java and REST applications. I have also worked with Oracle, SQL Server, PostgreSQL, MySQL, Sybase, Firebird and InterBase.


What I can do for you:

- Write SELECT, INSERT, UPDATE and DELETE queries, joins and reports

- Find why a query is wrong or slow and fix or optimize it

- Review a small stored procedure or table structure

- Explain in plain words what each query does


How I work: I use AI tools to speed up the analysis and the writing, but I always review and test every query myself before delivering. I do not promise what I cannot do. Before you order, send me a message describing the problem and the database you use, and I will tell you honestly if I can solve it, how long it will take and which package fits.


Best for small, well-defined tasks. I do not do large data migrations or full database projects with this gig.

Database type:

Centralized database

•

Relational database

Platform:

Db2

•

MySQL

•

Oracle

•

PostgreSQL

Expertise:

Data structure

•

SQL

•

Performance

•

Query optimization

My Portfolio