| 释义 |
data structure diagram 数据结构图;[资料结构图] In structured analysis, a graphic tool representing the entities, attributes, and data relationships necessary to retrieve data immediately from a data base in response to an inquiry. 在结构分析中,表示实体、属性和数据之间关系的一种图形工具,这是响应查询立即从数 据库中检索数据所必需的。 |