| 释义 |
singular set
奇异系,无首系
In DBMS, a set type owned by the system record rather than by a record type selected by the user. A systemowned record has only one occurrence in the database, but can be the owner of many member record types to be used as entry points into the database.
在数据库管理系统(DBMS)中,属于系统记录而不属于用户选择的记录的系类型。在数据 库中属于系统所有的记录只出现一次,但它可以拥有许多成员记录,可以用作进入数据库 的多个入口点。
参阅owner record |