OCP 1Z0 052 94

94. You plan to move data from a flat file to a table in your database. You decide to use SQL*Loader direct

path load method to perform this task. The table in which you plan to load data is an important table

having various integrity constraints defined on it.

Which constraints will remain enabled by default during this operation? (Choose all that apply.)

A.CHECK

B.UNIQUE

C.NOT NULL

D.PRIMARY KEY

E.FOREIGN KEY

Answer: BCD

见 http://docs.oracle.com/cd/E11882_01/server.112/e22490/ldr_modes.htm#SUTIL1333

Disabled Constraints

During a direct path load, the following constraints are automatically disabled by default:

CHECK

constraints

Referential constraints (

FOREIGN

KEY

)