With this strategy, you can move up or down to any logical database schema state.
用这个策略，可以前后转移到逻辑数据库模式的任何状态。
A logical identifier must not be the same as the name of the physical database.
一个逻辑的标识不能与物理数据库的名称相同。
The complete database includes physical integrity and logical integrity.
数据库的完整主要包括物理完整性和逻辑完整性。
The complete database includes physical integrity and logical integrity.
数据库的完整主要包括物理完整性和逻辑完整性。
应用推荐