One of the most significant is Creo Common Data model.
2
HSQLDB实际上是为嵌入式应用程序而不是为共同数据中心而创建的。
HSQLDB was really created for embedded applications, not for the corporate data center.
3
并发的复杂性在于,线程需要经常访问共同数据,每个线程都有自己的执行顺序,但需要访问共同数据。
The complexity in concurrency programming stems from the fact Threads often needs to operate on the common data. Each Thread has its own sequence of execution, but accesses common data.