They are the descendants of Queen Victoria.他们是维多利亚女王的后裔.They are the descendants of emperors and kings and are now living in reduced circumstances.他们是帝王的后代，但是现在境况大不如前了。They are descendants of the original English and Sco...
Independently, local transactions are executed under the control of the local DBMS.在多数据库中,全局事务是在MDBS的控制下执行, 局部事务在局部DBMS控制下独立执行.A collection of tables and indexes. The context for all DBMS operations.数据库:表和索引的集合. 数据库管理系统(...