多选题For which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）(Choose two.)AviewsBfixed tablesCheap tablesDexternal tablesEtemporary tablesFindex-organized tables (IOT)
多选题
For which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）(Choose two.)
A
views
B
fixed tables
C
heap tables
D
external tables
E
temporary tables
F
index-organized tables (IOT)
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