Querying Big Data Transaction processing systems that need very high scalability Many applications willing to sacrifice ACID properties and other database features,if they can get very high scalability Query processing systems that Need very high scalability,and Need to support non-relation data Database System Concepts-7th Edition 10.3 ©Silberscha乜，Korth and SudarshanDatabase System Concepts - 7 10.3 ©Silberschatz, Korth and Sudarshan th Edition Querying Big Data ▪ Transaction processing systems that need very high scalability • Many applications willing to sacrifice ACID properties and other database features, if they can get very high scalability ▪ Query processing systems that • Need very high scalability, and • Need to support non-relation data