{"id":278,"date":"2012-01-14T21:04:22","date_gmt":"2012-01-14T13:04:22","guid":{"rendered":"http:\/\/www.royalwzy.com\/?p=278"},"modified":"2014-01-14T21:10:32","modified_gmt":"2014-01-14T13:10:32","slug":"oracle%e4%b8%ad%e5%b7%a5%e5%85%b7%e7%9a%84%e4%bd%bf%e7%94%a802-dbverify","status":"publish","type":"post","link":"http:\/\/www.royalwzy.com\/?p=278","title":{"rendered":"ORACLE\u4e2d\u5de5\u5177\u7684\u4f7f\u752802–DBVERIFY"},"content":{"rendered":"
DBVERIFY\u5de5\u5177\u7684\u4f7f\u7528<\/p>\n
\n
    \n
  1. DBVERIFY\u5de5\u5177\u4ecb\u7ecd:\n
      \n
    1. DBVERIFY is an external command-line utility that performs a physical data structure integrity check.\u00a0It can be used on offline or online databases, as well on backup files<\/span>. You use DBVERIFY primarily when you need to ensure that a backup database (or datafile) is valid before it is restored, or as a diagnostic aid when you have encountered data corruption problems;<\/li>\n
    2. DBVERIFY checks are limited to cache-managed blocks (that is, data blocks). Because DBVERIFY is only for use with datafiles,\u00a0it will not work against control files or redo logs;<\/span><\/li>\n
    3. \u53ea\u652f\u6301\u955c\u50cf\u5907\u4efd,\u4e0d\u652f\u6301\u5907\u4efd\u96c6\u9a8c\u8bc1;\u6d4b\u8bd5\u53d1\u73b0\u63a7\u5236\u6587\u4ef6\u53ef\u4ee5\u9a8c\u8bc1,\u4f46\u662f\u5728\u7ebf\u65e5\u5fd7\u4e0d\u53ef\u4ee5;<\/li>\n<\/ol>\n<\/li>\n
    4. DBVERIFY\u7684\u8bed\u6cd5:dbv key=value;\n
        \n
      1. USERID=Username\/Password:\u6307\u5b9a\u7528\u6237\u540d\u5bc6\u7801,\u5982\u679c\u68c0\u67e5\u7684\u6587\u4ef6\u662fASM\u6587\u4ef6\u7cfb\u7edf,\u9700\u8981\u63d0\u4f9b\u9a8c\u8bc1\u4fe1\u606f;<\/li>\n
      2. FILE=file_name:\u8981\u68c0\u67e5\u7684datafile\u6587\u4ef6\u540d;<\/li>\n
      3. START=start_block:\u8981\u68c0\u67e5\u7684\u6587\u4ef6\u7684\u5f00\u59cb\u5757\u53f7,\u9ed8\u8ba4\u662f\u6587\u4ef6\u7b2c\u4e00\u4e2a\u5757;<\/li>\n
      4. END=end_block:\u8981\u68c0\u67e5\u6587\u4ef6\u7684\u7ed3\u675f\u7684\u5757\u53f7,\u9ed8\u8ba4\u662f\u6587\u4ef6\u6700\u540e\u4e00\u4e2a\u5757;<\/li>\n
      5. BLOCKSIZE=size:\u6307\u5b9a\u5757\u7684\u5927\u5c0f,\u9ed8\u8ba4\u662f8k,\u5982\u679c\u4f7f\u7528\u7684\u4e0d\u662f8k\u7684\u5757\u9700\u8981\u6307\u5b9a\u6b64\u53c2\u6570;<\/li>\n
      6. LOGFILE=log_file:\u6307\u5b9a\u65e5\u5fd7\u6587\u4ef6,\u5982\u679c\u4e0d\u6307\u5b9a\u5c31\u663e\u793a\u5728\u7ec8\u7aef;<\/li>\n
      7. FEEDBACK=n:\u8fd4\u56de\u68c0\u67e5\u7684\u8fdb\u5ea6,n\u4e2a\u5355\u4f4d\u6253\u4e00\u4e2a\u70b9;<\/li>\n
      8. PARFILE=parameter_file:\u6307\u5b9a\u4e00\u4e2a\u53c2\u6570\u6587\u4ef6;<\/li>\n
      9. SEGMENT_ID:\u6307\u5b9a\u6bb5\u7684id(\u7531\u4e09\u90e8\u5206\u7ec4\u6210:tablespace_id.header_file.header_block),\u53ef\u4ee5\u901a\u8fc7sql\u8bed\u53e5\u67e5\u8be2;<\/li>\n<\/ol>\n<\/li>\n
      10. DBVERIFY\u7684\u7528\u6cd5:\n
          \n
        1. \u5bf9datafile\u6587\u4ef6\u8fdb\u884c\u68c0\u67e5;<\/li>\n
        2. \u5bf9segment\u8fdb\u884c\u68c0\u67e5;<\/li>\n
        3. \u5bf9\u5907\u4efd\u96c6\u7684\u68c0\u67e5;<\/li>\n
        4. \u5bf9\u63a7\u5236\u6587\u4ef6\u7684\u68c0\u67e5;<\/li>\n<\/ol>\n<\/li>\n
        5. \u68c0\u67e5datafile\u4e2d\u7684block:\n
            \n
          1. \u8fd9\u79cd\u6a21\u5f0f\u4e0b,\u4f1a\u626b\u63cf\u4e00\u4e2adatafile\u4e2d\u7684\u4e00\u4e2a\u6216\u8005\u591a\u4e2ablocks,\u5e76\u751f\u6210\u4e00\u4efd\u68c0\u67e5\u7ed3\u679c;<\/li>\n
          2. \u5982\u679cdatafile\u662fASM\u7cfb\u7edf\u6587\u4ef6\u7684\u8bdd,\u9700\u8981\u63d0\u4f9bUSERID\u8fde\u63a5\u5230\u8fd9\u4e2aASM\u6587\u4ef6;<\/li>\n
          3. \u68c0\u67e5system\u8868\u7a7a\u95f4:dbv file=$ORACLE_BASE\/oradata\/PROD\/system01.dbf feedback=1000;
            \n\"\"<\/li>\n<\/ol>\n<\/li>\n
          4. \u68c0\u67e5segment:\n
              \n
            1. \u5728\u8fd9\u79cd\u6a21\u5f0f\u4e0b,\u53ef\u4ee5\u7528\u6765\u68c0\u67e5\u4e00\u4e2a\u5bf9\u8c61(\u8868\/\u7d22\u5f15)\u4f7f\u7528\u7684segment\u7684\u53ef\u7528\u6027,\u6307\u5b9asegment\u7684\u6240\u6709\u94fe\u8868\u90fd\u4f1a\u88ab\u68c0\u67e5;<\/li>\n
            2. \u88ab\u68c0\u67e5\u7684\u76f8\u5e94\u7684\u5bf9\u8c61\u4f1a\u88ab\u52a0\u9501,\u5982\u679c\u662f\u7d22\u5f15\u7684\u8bdd,\u5219\u5f15\u7528\u7684\u8868\u4f1a\u88ab\u52a0\u9501;<\/li>\n
            3. \u9700\u8981\u63d0\u4f9bsysdba\u7684\u8eab\u4efd\u9a8c\u8bc1,\u56e0\u4e3a\u9700\u8981\u8bfb\u53d6segment\u7684\u6570\u636e\u5b57\u5178;<\/li>\n
            4. \u68c0\u67e5scott\u7528\u6237\u4e0bemp\u8868\u7684segment:dbv userid=scott\/tiger segment_id=4.4.2003 feedback=10; \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\"\"\"\"<\/li>\n<\/ol>\n<\/li>\n
            5. \u9a8c\u8bc1\u63a7\u5236\u63a7\u5236\u6587\u4ef6:\n
                \n
              1. \u5e38\u89c4\u9a8c\u8bc1,\u53d1\u73b0\u9519\u8bef,\u56e0\u4e3a\u5757\u5927\u5c0f\u4e0d\u5bf9,\u4fee\u6539\u9a8c\u8bc1\u8bed\u6cd5:dbv file=$ORACLE_BASE\/oradata\/PROD\/control01.ctl feedback=100; \u00a0 \u00a0\u00a0\"\"<\/li>\n
              2. \u9a8c\u8bc1:dbv file=$ORACLE_BASE\/oradata\/PROD\/control01.ctl blocksize=16384 feedback=100;\"\"<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n
                <\/div>\n<\/div>\n
                — \u67e5\u8be2\u67d0\u4e2aSEGMENT\u7684id;<\/div>\n
                SELECT a.ts# || ‘.’ || b.header_file || ‘.’ || b.header_block
                \nFROM v$tablespace a, dba_segments b
                \nWHERE a.NAME = b.tablespace_name AND b.segment_name = ‘segment_name’ AND owner = ‘owner’;<\/div>\n
                <\/div>\n
                — \u5757\u635f\u574f\u7684\u51e0\u79cd\u68c0\u67e5;<\/div>\n
                ————————————————————————————–
                \n\u7279\u6027\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u574f\u5757\u4fa6\u6d4b\u7c7b\u578b\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u80fd\u5426\u4fee\u590d\u635f\u574f\u5757
                \n————————————————————————————————
                \nDBVERIFY\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u7269\u7406\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5426
                \nANALYZE\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u903b\u8f91\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5426
                \nDB_BLOCK_CHECKING\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u903b\u8f91\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5426
                \nDB_BLOCK_CHECKSUM\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u7269\u7406\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5426
                \nexp\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u7269\u7406\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5426
                \nFlashBack\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u903b\u8f91\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u662f
                \nDBMS_REPAIR\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u903b\u8f91\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u662f
                \nBlock media recovery\u00a0\u00a0\u00a0\u00a0\u00a0 \u672a\u77e5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u662f<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

                DBVERIFY\u5de5\u5177\u7684\u4f7f\u7528 DBVERIFY\u5de5\u5177\u4ecb\u7ecd: DBVERIFY is an external com […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[34,2],"class_list":["post-278","post","type-post","status-publish","format-standard","hentry","category-oracle","tag-oracle","tag-oracle_basics"],"_links":{"self":[{"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/posts\/278","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=278"}],"version-history":[{"count":0,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/posts\/278\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=278"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=278"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=278"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}