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A backup of a datafile that includes every allocated block in the file being backed up. A full backup of a datafile can be an image copy, in which case every data block is backed up. It can also be stored in a backup set, in which case datafile blocks not in use may be skipped, ......
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A.DATA_TYPE||'('||A.CHAR_LENGTH||')') as "×Ö¶ÎÀàÐÍ1",A.DATA_TYPE AS "×Ö¶Î ......