WEBDEV Concepts

Part 5: Databases 173 HFSQL Client/ Server HFSQL Client/Server is a powerful system for managing relational databases (RDBMS) in Client/ Server mode. The characteristics of the Client/Server mode are as follows: • An HFSQL Client/Server site is run on different client computers. A session is started on the Web server for each site run. • The data files are located on a server (HFSQL server). Only the server physically accesses the data files. • All processes (queries, read from and write records to a data file, etc.) are performed on the server. Windows or Linux HFSQL server Manta server HFSQL Client/Server databases Session 1 Session 2 Session n Client 1 Client 2 Client n Web server Type of connection: Network wire, USB, Wi-Fi, Internet... TCP/IP protocol