SQL

Relational database management system that uses YottaDB as the data store

🐘🕶️ Anonymization & Data Masking for PostgreSQL

https://labs.dalibo.com/postgresql_anonymizer

A full-stack food ordering platform based on Wolt, where users can browse restaurants, explore menus, and place orders. The system supports multiple roles including customers, restaurants, partners, and administrators with dedicated dashboards and functionality.

https://arrowpqt.gitlab.io

Arrow & Parquet is a high-performance, fully client-side data transformation and analysis tool designed to bridge familiar data formats with modern, high-speed querying engines directly in the browser. It allows users to import Arrow, Arrows, CSV, and JSON files, instantly converting them into the highly optimized Parquet format using Rust WebAssembly. Native Parquet files can also be imported directly.

Once the data is securely loaded, an embedded DuckDB WASM engine enables users to perform complex SQL queries, validate data structures, and aggregate large datasets with zero server latency. After filtering and shaping the data, the final output can be exported as either CSV or Parquet files for seamless integration into downstream machine learning workflows or BI tools.

To handle robust data operations and large WebAssembly payloads without hitting strict hosting limits, the application is deployed via GitLab Pages and utilizes the browser's Origin Private File System (OPFS). This guarantees high-speed local storage and ensures that all data processing remains strictly local, providing absolute data privacy without ever transmitting sensitive information to an external server.

Built with Astro, Rust WebAssembly, and DuckDB WASM.

KVLite is a partition-based key-value cache built for SQL RDBMSs: https://kvlite-docs.pommalabs.xyz/

Open-source project for managing Snowflake permissions and roles through YAML configuration

A Java annotation processor which creates the boilerplate for your Database Access. It Checks your SQL strings online in the database and generates the result types for you. https://lazysql.thomas-oster.de

transqlate transpile SQL snippet from a dialect to another using an AST

Repository housing code files and study material for personal projects related to data engineering, data analytics, machine learning, game design and digital marketing engineering.

Cheat sheets for several programming languages and IT related tools.

SQL pipeline for extracting and transforming HOSxP hospital data (patient, vn_stat, etc.) for downstream workflows.

Analysis of Kilter Board data, along with predictive models for V-grades based on holds and angle.

A database setup project for RoomBook application, including SQL scripts and folder structure for managing database schema and initialization.

Naive implementation of IO server universal database access library

Analysis of Tension Board 2 data, along with predictive models for V-grades based on holds and angle.

Key platform data integrations repo

Dashboard Comercial desenvolvido do zero com modelagem relacional no DBeaver (SQL), pipeline de transformações no Power Query e visualizações interativas no Power BI. Projeto de estudo para portfólio.

Joe helps backend engineers and DBAs troubleshoot and optimize SQL, moving really quickly. Joe works on top of Database Lab https://gitlab.com/postgres-ai/database-lab.