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【2019年8月版】OCP 071認(rèn)證考試原題-第43題

發(fā)布時(shí)間:2020-03-01 19:04:40 來(lái)源:網(wǎng)絡(luò) 閱讀:371 作者:cto_5359 欄目:關(guān)系型數(shù)據(jù)庫(kù)

Choose two.

You execute this command:

TRUNCATE TABLE depts;

Which two are true?

A) It drops any triggers defined on the table.

B) It retains the indexes defined on the table.

C) It retains the integrity constraints defined on the table.

D) A ROLLBACR statement can be used to retrieve the deleted data.

E) It always retains the space used by the removed rows.

F) A FLASHBACK TABLE statement can be used to retrieve the deleted data.

Answer::BC

(解析:基本的考點(diǎn)。)

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