单选题
发布日期:2020-04-10
The command drops the file +tdgroupA·231.45678.
The command physically relocates the file to +tdgroupA/data and renames the file to datafile.dbf.
The command creates a copy of the +tdgroupA·231.45678 file and places it in +tdgroupA/data after renaming the file to datafile.dbf.
The command creates an alias, datafile.dbf, and places it in +tdgroupA/data and does not remove the +tdgroupA·231.45678 file.
The command creates a file, datafile.dbf, in +tdgroupA/data and removes the references for +tdgroupA·231.45678 from the data dictionary views.
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