& lt meta http-equiv = "refresh" content = "10" > refreshing is equivalent to reopening the webpage, and the data will be re-read. Just brush out the latest 50 pieces of information on the web page, and you can choose a paging design with 50 pieces per page. If the database is large, the reading speed will not be very slow.

Database has its unique operating mechanism. If the general server hardware is excellent, the speed of database reading and writing operation is acceptable to netizens. Program algorithm can play a certain role, but don't care too much. Access is suitable for small databases. SQL is used for huge data, and the database kernel mechanism is more advanced than the latter! ! !