多选题Examine the following impdp command to import a database over the network from a pre-12c Oracledatabase (source): Which three are prerequisites for successful execution of the command?（）AThe import operation must be performed by a user on the target database with the DATAPUMP_IMP_FULL_DATABASE role, and the database link must connect to a user on the source database with the DATAPUMP_EXD_FULL_DATABASE role.BAll the user-defined tablespaces must be in read-only mode on the source database.CThe export dump file must be created before starting the import on the target database.DThe source and target database must be running on the same platform with the same endianness.EThe path of data files on the target database must be the same as that on the source database.FThe impdp operation must be performed by the same user that performed the expdp operation.
多选题
Examine the following impdp command to import a database over the network from a pre-12c Oracledatabase (source): Which three are prerequisites for successful execution of the command?（）
A
The import operation must be performed by a user on the target database with the DATAPUMP_IMP_FULL_DATABASE role, and the database link must connect to a user on the source database with the DATAPUMP_EXD_FULL_DATABASE role.
B
All the user-defined tablespaces must be in read-only mode on the source database.
C
The export dump file must be created before starting the import on the target database.
D
The source and target database must be running on the same platform with the same endianness.
E
The path of data files on the target database must be the same as that on the source database.
F
The impdp operation must be performed by the same user that performed the expdp operation.
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