数据: data; record; information定义: definition; delimiting语句: sentence statement语句或一个数据定义语言: ddl数据定义语名: data definition statement数据定义语言: data definition language (ddl); datadefinitionlanguageddl; ddl data definition language; ddl data-definition-language存储数据定义语言: stored data definition language概念数据定义语言: conceptual ddl图形数据定义语言: ddl / g graphical data definition language; graphic data definition language; graphical data definition language数据集定义语句: data set definition statement事件或数据定义语言: ddl数据定义语言委员会: ddlc data definition language committee为响应数据定义语言: ddl定义语句: define i truction; define instruction; definition statement类定义语句: cds数据定义: datadefinition; dd data definition数据定义表: ddt data definition table数据定义符: data delimiter数据定义库: data definition library数据定义名: data definition name; ddn存储定义语句: define storage statement符号定义语句: symbolic definition statement过程定义语句: procedure-definition statement活动定义语句: activity definition statement进程定义语句: process definition statement