Client-Server Systems(Cont.) Database functionality can be divided into: Back-end:manages access structures,query evaluation and optimization,concurrency control and recovery. Front-end:consists of tools such as forms,report-writers,and graphical user interface facilities. The interface between the front-end and the back-end is through SQL or through an application program interface. SQL user forms report data mining front end and analysis interface interface generation tools tools interface (SQL API) SQL engine back end Database System Concepts-6th Edition 17.6 @Silberschatz,Korth and SudarshanDatabase System Concepts - 6 17.6 ©Silberschatz, Korth and Sudarshan th Edition Client-Server Systems (Cont.) Database functionality can be divided into: Back-end: manages access structures, query evaluation and optimization, concurrency control and recovery. Front-end: consists of tools such as forms, report-writers, and graphical user interface facilities. The interface between the front-end and the back-end is through SQL or through an application program interface