You execute this command: TRUNCATE TABLE depts; Which two are true?

A、Itdropsanytriggersdefinedonthetable.
B、Itretainstheindexesdefinedonthetable.
C、Itretainstheintegrityconstraintsdefinedonthetable.
D、AROLLBACKstatementcanbeusedtoretrievethedeleteddata.
E、Italwaysretainsthespaceusedbytheremovedrows.
F、AFLASHBACKTABLEstatementcanbeusedtoretrievethedeleteddata.