File Organization and Indexing

This lecture covers the concepts of file organization and indexing in database systems, starting with the relational model and moving on to relational algebra, SQL, and query optimization. It explains different file organization techniques, such as heap files and sorted files, and dives into indexing methods like clustered vs unclustered, dense vs sparse indexes, and primary vs secondary keys. The instructor discusses the physical design aspects of database storage, including record formats, page formats, and alternate page formats like column store and partition attributes across. The lecture also delves into index classification, search conditions, and data entry representations, providing insights into the efficiency and tradeoffs of various indexing techniques.