Explore the intricacies of SQL Server index internals in this comprehensive 59-minute conference talk by Kalen Delaney at PASS Data Community Summit. Delve into the world of RowStore, ColumnStore, and NoStore indexes, understanding their structures, use cases, and performance implications. Learn about B-Trees, leaf levels, and when to use disk-based B-Tree indexes. Discover the basics of Columnstore indexes and their optimal application scenarios. Investigate In-Memory OLTP and hash indexes, gaining insights into their benefits and appropriate usage. Compare different index types, explore fragmentation issues, and understand statistics and maintenance requirements. Gain valuable knowledge to optimize database performance and make informed decisions about index selection in various scenarios.