A SQL database engine built from scratch in C, featuring a complete query processing pipeline (tokenizer → parser → semantic analyzer → executor).

Implements core database internals for data storage and retrieval:

• Storage & Persistence: Developed a page-based storage system that persists data to disk in a custom binary format.
• Data Structures: Built a custom auto-resizing HashMap for O(1) table lookups and implemented cursor-based traversal for row operations.
• Query Logic: The engine supports core SQL operations like CREATE/DROP TABLE, INSERT, SELECT, and DELETE, including WHERE clause filtering with type-safety checks.

The project was a deep dive into memory management, database internals, and systems architecture, with components tested using Valgrind for memory safety.