SimpleDB is a java based basic Database Management System. This project focuses on implementing core modules required for a DBMS which includes modules required to store and retrieve data on disk, transaction, locking and executing queries.

The project is course project for CS186 course of Berkeley University. The full details can be obtained at the project site : https://sites.google.com/site/cs186fall2013/homeworks/project-1

You can find entire JavaDoc at https://hrily.github.io/SimpleDB

• Modelling of DB Tables in form of Tuples and Fields
• Modelling of DB Catalog
• Management of Buffer Pages in BufferPool
• Arranging Pages in HeapFiles and retrieving data from them
• DB Table Scan using Iterators
• Filter Operator
• Join Operator
• Aggregator (Group by) Operator
• Insertion and Deletion into Tables
• Page Eviction in Buffer Pool
• Join Optimizer based on Selinger cost-based optimizer
• Transaction, Locking and Concurrency control

• B+Tree Files
• Better Thread Scheduling
• Better Jonn Optimizer Cost computing

The project is done over skeleton provided by the course. Testing is done on JUnit using the tests provided by course itself.