您好,登錄后才能下訂單哦!
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)。)
免責(zé)聲明:本站發(fā)布的內(nèi)容(圖片、視頻和文字)以原創(chuàng)、轉(zhuǎn)載和分享為主,文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng),如果涉及侵權(quán)請(qǐng)聯(lián)系站長(zhǎng)郵箱:is@yisu.com進(jìn)行舉報(bào),并提供相關(guān)證據(jù),一經(jīng)查實(shí),將立刻刪除涉嫌侵權(quán)內(nèi)容。