Banking Application APIs | RESTful Banking APIs built with Java & Spring Boot, using JPA, JDBC, and MySQL for persistence. Implemented pessimistic locking, DTOs with Java records, and global exception handling. Tested via Postman.

A professional SQL project demonstrating core database transaction concepts including ACID properties, Isolation Levels, Rollbacks, and Concurrency Handling using a practical banking system example.

CLI based application designed for efficient grocery store management, enabling seamless handling of products, customers, and orders while ensuring database concurrency and consistency.

A Spring Boot 4.0 project demonstrating declarative transaction management with @transactional, ensuring data consistency between Employee and Address entities using Spring Data JPA.

An interactive, production-grade educational platform designed to demystify the core pillars of database transactions (Atomicity, Consistency, Isolation, and Durability). https://rajanand.substack.com/p/acid-properties