由于包的名称不同，在运行时搜索这个新的包时将得到一个错误，因为它没有被绑定到数据库(和在前面的例子中一样)。
Because the package name is different, the search for the new package at runtime results in an error since it isn't bound to the database (as in the previous examples).
引用完整性是一个美妙的sql术语，它指的是保持数据库中的所有数据都是干净的，没有错误或者多余的数据，表之间的连接准确合理。
Referential integrity is a fancy SQL term that refers to keeping all the data in your database clean, free from incorrect or unused data, and accurate in terms of joins across tables.
该定义听起来像是数据库管理系统中的一个事务性机理，如果它没有正常运行的话该步骤可以返回。
This definition sounds like that of a transactional mechanism in a database management system, in which a step can be rolled back if it is not performed correctly.
应用推荐