Complex query strings, normal form optimization, and the procedural nature of SQL are abstracted via JDO, allowing a development team to focus on the core of their application's persistence needs.
复杂查询字符串、范式优化和SQL的过程性质都通过JDO得以抽象，从而使开发小组可以将精力集中在他们的应用的持久性需求这个核心上。
This optimization feature enables applications to efficiently query XML data through a traditional relational interface with SQL queries.
这种优化特性让应用程序能够使用SQL查询通过传统的关系接口高效地查询XML数据。
The SQL compiler USES query optimization to select the best performing access path for any given SQL statement (within a reasonable amount of time, of course).
SQL编译器使用查询优化来为任何给定的sql语句选择表现最好的访问路径(当然，这要在合理的时间内)。
应用推荐