数据: data; record; information定义: definition; delimiting语言: 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语句或一个数据定义语言: ddl数据定义语句: data definition statement; dd statement数据定义语名: data definition statement数据词典定义语言: data dictionary definition language数据库定义语言: dbdl database definition language; ddl database definition language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定义语言: defined language; definition language; definitional language数据和结构定义语言: dasdl data and structure definition language存储数据定义: stored data definition多级数据定义: multistage data definition数据定义查询: data-definition query; data-definitionquery数据定义名称: dd-name data definition name