（多选题）
You plan to move data from a flat file to a table in your database. You decide to use SQL*Loader directpath load method to perform this task. The table in which you plan to load data is an important tablehaving various integrity constraints defined on it. Which constraints will remain enabled by default during this operation（）
ACHECK
BUNIQUE
CNOT NULL
DPRIMARY KEY
EFOREIGN KEY
正确答案
答案解析
略
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