教学课件
........\database_00_introduction.ppt
........\database_01.ppt
........\database_02.ppt
........\database_03_1.ppt
........\database_05.ppt
........\database_08.ppt
........\database_09.ppt
........\database_by_closure.ppt
........\database_by_rule.ppt
........\database_exp_of_algebra.ppt
........\database_exp_of_armstrong.ppt
........\database_exp_of_DB_design.ppt