| 释义 |
transition assertion
变迁断言
The assertions that are defined in a database system and relate to the data updating.For example,in a salary database,it may be stipulated that new salaries are not less than old ones.When the database is updated, these assertions should be satisfied.
数据库系统中规定的涉及数据库更新的断言。例如，在工资数据库中，可以规定新工资不小于旧工资。对数据库进行更新时，这些断言应能满足。 |