数据库与数据结构 database and data structure 交流与数据库系统 acds apec communications and database system apec ..
基于1个网页-相关网页
Ruby on Rails migration solves some of the problems described above involving the database and data structure changes.
Ruby on Rails迁移可以解决前面描述的涉及数据库和数据结构更改的一些问题。
Now we must create the table structure in the database, which also wipes out the existing tables and data (if there's any) and start from scratch.
现在我们必须在数据库中创建表结构，这也会清除现有表和数据(如果有的话)，并从头开始。
It offers many new features for application developers, hierarchical data structure support, and improved query capabilities across multiple instances of the database.
它提供了很多面向应用程序开发人员的新特性、分层数据结构支持和改进的跨多个数据库实例的查询能力。
应用推荐