| 释义 |
logical relationship
逻辑关系
A user defined path between two segments;that is, between logical parent and logical child, which is independent of any physical path. Logical relationships can be defined between segments in the same physical data base hierarchy or in different hierarchies.
由用户定义的两个段 之间的路径,即在逻辑双亲段和逻辑子女段之间的路径,与任何物理路径无关。逻辑关系可在 物理数据库同一层次或不同层次的段之间定义。 |