删除模式的命令中参数CASCADE和RESTRICT的区别是什么？

删除用户的同时删除用户所拥有的全部对象的正确命令是（） A: drop user username cascade B: drop user username C: delete user username D: delete user username cascade

Abigail: Is Paul’s Pizza ________ Pizza Cascade? Logan: I think Paul’s Pizza is better.

The<br/>function of rotor is() A: come<br/>together the mechanical energy of each cascade. . B: ensure no leakage of steam in cylinder C: Prevent excessive blade temperature D: transfer of mechanical energy to the generator rotor.

Among the basic realization structure of the FIR filter, the ________ (direct or cascade ) structure is the structure more sensitive to coefficient quantization.

When shrinking a table segment， you choose to shrink all the indexes for that table using the SHRINK SPACE command. Which clause should you use？（） A: A INCLUDING DEPENDENCIES B: B INCLUDING DEPENDENCIES CASCADE C: C COMPACT D: D CASCADE E: E None of the above

The Backbone of North America refers to the ____. A: Appalachian Mountains B: Rocky Mountains C: Cascade Mountains D: Nevada Mountains

删除PRIMARYKEY约束条件及其所有依赖约束条件的语法是什么（） A: AALTER TABLE table_name DROP CONSTRAINT constraint_name CASCADE B: BALTER TABLE table_name DROP CONSTRAINT FOREIGN KEY CASCADE C: CDROP CONSTRAINT table_name（constraint_name） D: DALTER TABLE table_name DROP CONSTRAINT constraint_name

OnaWindowsscreen,therewill<spanstyle="text-decoration:underline;">rolldown</span>manymorebuttonswhenyouhitthe“tools”button. A: cast B: caste C: cascade D: cataract

若表上建有视图，若表上建有视图，选择（ ）时表不能删除; A: RESTRICT B: CASCADE