【多选题】
A <{p}>An index created with
the UNUSABLE attribute has no segment.<{br/}><{/p}>
B <{p}>Private Temporary Tables(PTTs)store metadata in memory
only.<{/p}>
C <{p}>Private Temporary
Tables(PTTs) when used, are always dropped at the next commit statement.<{br/}><{/p}>
D <{p}>An index that is
altered to be UNUSABLE will retain its segment<{br/}><{/p}>
E <{p}>A table that is
truncated will always have all of its extents removed<{br/}><{/p}>
查看更多
