🤝 Enforce referential and data integrity in Cloud Firestore using triggers

Bank Database made in SQL

University Database made in SQL

eZ Publish Legacy extension allowing to check integrity of data in the database and filesystem storage

A Convex component for cascading deletes — delete a record and all its dependents automatically, in the correct order.

Command-line program that scans NMDC database for referential integrity violations

Implementation of referential integrity constraint when it is not a primary key-foreign key relationship

SocialBook Database made in SQL, with comprehensive documentation.

The Car Rental System is an automated platform that allows customers to browse available vehicles, make online reservations, and manage bookings with ease. It provides real-time vehicle availability and secure payment options, streamlining the rental process for both users and administrators.

PHP backend for dbrel-viz that turns your MySQL schema into an interactive relationship graph.

Herramienta de línea de comandos para analizar y medir la calidad de la integridad referencial en bases de datos relacionales.

Online retail management system

PostgreSQL sales-analytics warehouse consolidating CRM and ERP CSV extracts into a star-schema reporting layer. Medallion architecture (Bronze → Silver → Gold) with data-quality rules, deduplication, and gold views (dim_customers, dim_products, fact_sales).

Structured data-cleaning pipeline built on the Olist e-commerce dataset, focusing on reproducible ingestion, schema profiling, and light standardization using Python and pandas. Emphasizes clear pipeline stages, auditability, and portfolio-ready documentation.

Transaction-safe institutional record management prototype — SQL Server + C# (stored procedures + CRUD interface)

Comprehensive SQL script performing updates, inserts, queries, and managing referential integrity for a restaurant database.

Relational database project built in MySQL demonstrating normalization, keys, constraints, and reporting queries.

Proof of concept to check if referential integrity holds for RMI in Java.