One of the four main component parts of a COBOL program. The data division describes the files to be used in the program and the records contained within the files. It also describes any internal working-storage records that will be needed.; COBOL程序的四個(gè)主要組成部分之一,描述程序中要用到的文件以及文件中包含的記錄, 也描述將要用到的任何內(nèi)部工作存儲記錄。同data item。