Outline Lock-Based Protocols Timestamp-Based Protocols Validation-Based Protocols ■ Multiple Granularity Multiversion Schemes Insert and Delete Operations ■ Concurrency in Index Structures Database System Concepts-7th Edition 18.2 ©Silberscha乜，Korth and SudarshanDatabase System Concepts - 7 18.2 ©Silberschatz, Korth and Sudarshan th Edition Outline ▪ Lock-Based Protocols ▪ Timestamp-Based Protocols ▪ Validation-Based Protocols ▪ Multiple Granularity ▪ Multiversion Schemes ▪ Insert and Delete Operations ▪ Concurrency in Index Structures