My bachelor's diploma work. Stack: Spring Boot, Hibernate, JPA, Spring Data, Angular, PostgreSQL

ETL and preprocessing of data to evaluate the possibilities of creating a machine learning models to predict whether a bidding item registered in purchases from ComprasGov systems will not have interested suppliers.

Data Modeling in Postgres and creating ETL pipeline using SQL and Python

Task dispatcher and scheduler for Postgres

started as an assignment for a job-application, now turned into a project...

QueryBuilder is a powerful and flexible Go library for building SQL queries with ease. It simplifies the process of constructing SQL statements, making it effortless to interact with your database.

Part of CS50 Harvard Course

Database partitioning with Hibernate

Ilustrate working with go + sqlc + postrges

A project to scrape, transform and load data into a local PostgreSQL database and migrate it to the live Postgres DB hosted on AWS.

Application for receiving and debugging webhooks.

This project is a team assignment for the "Databases" course, offered in the 4th semester of the 2022 academic year at the University of Piraeus, Department of Informatics.

Content management system application

This class can parse SQL to get query type, tables, field values, etc.. It takes an string with a SQL statements and parses it to extract its different components. Currently the class can extract the SQL query method, the names of the tables involved in the query and the field values that are passed as parameters. This parser is pretty light re…