dbv能用来检查日志文件么?

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)

Oracle官方文档地址:

http://download-west.oracle.com/docs/cd/B19306_01/server.102/b14215/dbverify.htm

存此备忘.

3 Comments

client | November 21, 2008 3:51 PM

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eygle | November 21, 2008 4:01 PM

晕，这是阿里妈妈的选择，我把图片允许去掉了，只允许文字链。

过几天也许都删除了，广告没有收益！

Julia | November 21, 2008 4:06 PM

我早就说过了...