接口的使用
org.h2.api.Aggregate

使用Aggregate的程序包

程序包	说明
org.h2.engine	Contains high level classes of the database and classes that don't fit in another sub-package.

org.h2.engine中Aggregate的使用

返回Aggregate的org.h2.engine中的方法

限定符和类型	方法和说明
Aggregate	UserAggregate.getInstance()