Instead of translating changes between individuals and groups, physical data models put data architects, developers, and database administrators stay on the same page.
物理数据模型将数据架构师、开发人员和数据库管理员统一起来，而不是在个人与组之间转换更改。
Administrators are advised to do an offline backup whenever the schema of the database changes, or changes are made such as adding or removing data files, and adding or removing of table Spaces.
每当数据库的模式发生更改，或者进行像添加或删除数据文件、添加或删除表空间这样的更改时，建议管理员执行脱机备份。
Support for validating XML data based on user-supplied schemas, which allows application developers and database administrators to enforce data integrity constraints for XML data stored in DB2.
支持基于用户提供的模式验证 XML 数据，这使得应用程序开发人员和数据库管理员可以对 DB2 中存储的 XML 数据实施数据完整性约束。
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