أﻧﻈﻤﺔ ﻗﻮاﻋﺪ اﻟﺒﻴﺎﻧﺎت اﻟﻔﺼﻞ اﻷول . File-based data storage systems . . . flat-file databases ﻴ Tab Character Comma (file .(CSV) Flat-) (Comma- separated value file) File –based database . .… ٦