dbv能用来检查日志文件吗-服务器专区

dbv能用来检查日志文件吗

作者：chinaitlab 佚名编辑： IT168 2006-05-20 00:00

　　【IT168 服务器学院】Oracle提供命令行工具DBV用来检查数据文件的完好性.

　　那么DBV可以用来检查日志文件么?

　　答案是不能.

　　Oracle在文档中这样描述DBV工具:

　　DBVERIFY is an external command-line utility that performs a physical data structure integrity check. It can be used on offline or online databases, as well on backup files.

　　DBVERIFY checks are limited to cache-managed blocks (that is, data blocks). Because DBVERIFY is only for use with datafiles, it will not work against control files or redo logs.

　　再次注意到读文档是有好处的,以前并不知道DBV可以直接用来针对数据段进行检查,引用一个文档中的例子:

　　这是命令格式:

dbv USERID=username/password SEGMENT_ID=tsn.segfile.segblock

　　假定hr用户具有sysdba权限,执行:

dbv USERID=hr/hr SEGMENT_ID=1.2.67

　　输出如下:

DBVERIFY - Verification starting : SEGMENT_ID = 1.2.67
            DBVERIFY - Verification complete
            Total Pages Examined         : 8
            Total Pages Processed (Data) : 0
            Total Pages Failing   (Data) : 0
            Total Pages Processed (Index): 1
            Total Pages Failing   (Index): 0
            Total Pages Processed (Other): 2
            Total Pages Processed (Seg)  : 1
            Total Pages Failing   (Seg)  : 0
            Total Pages Empty            : 4
            Total Pages Marked Corrupt   : 0
            Total Pages Influx           : 0
            Highest block SCN            : 7358 (0.7358)

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