多选题On which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）Afixed tablesBheap tablesCexternal tablesDtemporary tablesEIndex-Organized Tables (IOTs)
题目
多选题
On which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）
A
fixed tables
B
heap tables
C
external tables
D
temporary tables
E
Index-Organized Tables (IOTs)