I will write sql queries and build sql reports for your data

Armenia

I speak English

SQL Developer

Hi, I'm Gug, a data and backend developer based in Yerevan, Armenia. I have several years of hands-on experience in banking and credit risk systems, where I build PostgreSQL analytical reports, work w...
About this Gig

Need SQL queries or a data report from your PostgreSQL database? I can help.


I build clean, readable queries and reports that answer your business questions: from simple filters and joins to complex analytics with CTEs and window functions.


WHAT I CAN DO

- Write SQL queries (SELECT, JOIN, aggregation, filtering)

- Build analytical reports with CTEs and window functions

- Debug queries that return wrong results or errors

- Optimize slow queries

- Explain the logic, so you can reuse and adjust the query yourself


WHAT I NEED FROM YOU

- Table structure (schema) or a sample of your data

- A clear description of the result you want to get

- Database type and version (PostgreSQL preferred, MySQL also possible)


HOW I WORK

- I confirm the task with you before starting

- I comment the code and deliver it as a .sql file

- Revisions are included in every package


I have professional experience working with large analytical datasets in banking and credit risk, so accuracy and clear logic are my priority.


Send me a message before ordering if you are not sure which package fits your task. I usually reply quickly.


Database type:

Relational database

Platform:

MySQL

•

PostgreSQL

Expertise:

SQL

•

DML

•

DQL

•

Query optimization