| 释义 |
physical child segment 物理子(女)段 In a data base, a segment that is dependent on a segment at the next higher level in the data base hierarchy. All segments except the root segment are physical child segments because each is dependent on at least the root. 在层次结构数据库中依赖于一个更高层次上的段的那个段。所有除了根段外的段都是物理子段,因为它们 都依赖于根段。 参阅logical child segment。 |