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select BYTES/8192 from v$datafile where FILE#=5;BYTES/8192----------5120
select file_name from dba_data_Files;
[oracle@rac2 ~]$ dbv file='+DATA/anqing/datafile/undotbs02.dbf' userid=sys/oracle
dbv file=undotbs01.dbf
select tablespace_id,header_file, header_block from sys_dba_segs where segment_name = 'TA';TABLESPACE_ID HEADER_FILE HEADER_BLOCK------------- ----------- ------------ 0 1 71513
[oracle@rac2 ~]$ dbv segment_id=0.1.71513 userid=system/oracle
[oracle@node1 ~]$ dbv file='/oradata/orcl/test01.dbf' userid=sys/oracleDBVERIFY: Release 11.2.0.4.0 - Production on Wed Aug 17 15:15:52 2016Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.DBVERIFY - Verification starting(开始验证) : FILE = /oradata/orcl/test01.dbfDBVERIFY - Verification complete(验证完成) Total Pages Examined(检查的页总数) : 655360Total Pages Processed (Data) 处理的页总数 (数据): 261936Total Pages Failing (Data) 失败的页总数 (数据): 0Total Pages Processed (Index)处理的页总数 (索引): 0Total Pages Failing (Index)失败的页总数 (索引): 0Total Pages Processed (Other)处理的页总数 (其它): 876Total Pages Processed (Seg)处理的总页数 (段) : 3Total Pages Failing (Seg)失败的总页数 (段) : 0Total Pages Empty空的页总数 : 392545Total Pages Marked Corrupt标记为损坏的总页数 : 0Total Pages Influx流入的页总数 : 0Total Pages Encrypted加密的总页数 : 0Highest block SCN最高块 SCN : 117357549 (0.117357549)
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