单选题What is true about version-enabled tables？（）AThe unit of versioning is the schema.BIt is possible to version enable a table pertaining to SYS.CThere are as many segments as versions for the same base table.DIt is possible to create workspaces if there is no version-enabled table in the database.
单选题
What is true about version-enabled tables？（）
A
The unit of versioning is the schema.
B
It is possible to version enable a table pertaining to SYS.
C
There are as many segments as versions for the same base table.
D
It is possible to create workspaces if there is no version-enabled table in the database.
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