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View this parameter setting in your database：   DB_CREATE_FILE_DEST=’D:// /oracle/product/10.2.0/oradata/oracle’  You created a tablespace by using this command：   CREATE TABLESPACE USERS；  Which two statements are true about the USERS tablespace？（）
A:The tablespace has two data files.
B:An error is reported and tablespace creation fails.
C:Data files are created with names generated by the instance.
D:The tablespace can be extended without specifying the data file.
E:Data files belonging to the USERS tablespace cannot be renamed.

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出自：Oracle认证

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