题目内容

Evaluate the SQL statement DROP TABLE DEPT: Which four statements are true of the SQL statement? ()

A. You cannot roll back this statement.
B. All pending transactions are committed.
C. All views based on the DEPT table are deleted.
D. All indexes based on the DEPT table are dropped.
E. All data in the table is deleted, and the table structure is also deleted.
F. All data in the table is deleted, but the structure of the table is retained.
G. All synonyms based on the DEPT table are deleted.

查看答案
更多问题

低压断路器是主要用于配电线路和电气设备的过载、失压、欠压和短路保护的设备。

A. 正确
B. 错误

在PowerDesigner中,既支持在概论层又支持在物理层建立和维护数据模型的模块是()。

A. ProcessAnalyst
B. DataArchitect
C. AppModeler
D. WarehouseArchitccture

收益现值是反映本金市场等价交换特征的计价概念,它的本质是产品价值的本金化。

A. 正确
B. 错误

ip unnumber是一项借用地址的技术,如果被借用接口有多个ip地址,只能借用主ip地址。

A. 正确
B. 错误

答案查题题库