{"id":103,"date":"2011-09-18T23:51:31","date_gmt":"2011-09-18T15:51:31","guid":{"rendered":"https:\/\/yangtingkun.net\/?p=103"},"modified":"2011-09-22T17:30:54","modified_gmt":"2011-09-22T09:30:54","slug":"rownum%e5%9b%ba%e5%8c%96%e5%a4%96%e9%83%a8%e8%a1%a8%e7%bb%93%e6%9e%9c%e9%9b%86%e5%ad%98%e5%9c%a8%e9%97%ae%e9%a2%98%ef%bc%88%e4%ba%8c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/yangtingkun.net\/?p=103","title":{"rendered":"ROWNUM\u56fa\u5316\u5916\u90e8\u8868\u7ed3\u679c\u96c6\u5b58\u5728\u95ee\u9898\uff08\u4e8c\uff09"},"content":{"rendered":"<p>\u5728\u5ba2\u6237\u768411.2.0.2\u73af\u5883\u4e2d\u78b0\u5230\u4e86\u8fd9\u4e2a\u95ee\u9898\uff0cOracle\u5728\u5904\u7406\u5305\u542bROWNUM\u56fa\u5316\u7684\u5916\u90e8\u8868\u52a0\u8f7d\u6570\u636e\u65f6\u8fd4\u56de\u9519\u8bef\u7684\u7ed3\u679c\u3002<br \/>\n\u8fd9\u4e00\u7bc7\u63cf\u8ff0\u5229\u7528ROW_NUMBER\u6765\u907f\u514d\u9519\u8bef\u7684\u4ea7\u751f\u3002<br \/>\n\u5916\u90e8\u8868\u6784\u9020\u63cf\u8ff0\u53ef\u4ee5\u53c2\u8003\uff1a<a href=\"https:\/\/yangtingkun.net\/?p=35\">https:\/\/yangtingkun.net\/?p=35<\/a><br \/>\nROWNUM\u56fa\u5316\u5916\u90e8\u8868\u7ed3\u679c\u96c6\u5b58\u5728\u95ee\u9898\uff1a\uff1a<a href=\"https:\/\/yangtingkun.net\/?p=38\">https:\/\/yangtingkun.net\/?p=38<\/a><br \/>\n\u8fd9\u4e2a\u4f8b\u5b50\u662f\u5728\u672c\u673a\u4e0a\u8fd0\u884c\uff0c\u56e0\u6b64\u53ea\u662f\u544a\u8b66\u65e5\u5fd7\u7684\u540d\u79f0\u53d1\u751f\u4e86\u53d8\u5316\uff0c\u5176\u4ed6\u7684\u8bed\u6cd5\u548c\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e2d\u7684\u4e00\u81f4\uff0c\u5f53\u7136D_ALERT\u76ee\u5f55\u9700\u8981\u6307\u5411background_dump_dest\u53c2\u6570\u6307\u5b9a\u7684\u8def\u5f84\uff1a<\/p>\n<pre lang='SQL'>SQL> CREATE TABLE T_ALERT\r\n  2  (TEXT VARCHAR2(4000)\r\n  3  )\r\n  4  ORGANIZATION EXTERNAL\r\n  5  (TYPE ORACLE_LOADER\r\n  6  DEFAULT DIRECTORY D_ALERT\r\n  7  ACCESS PARAMETERS\r\n  8  (RECORDS DELIMITED BY NEWLINE\r\n  9  FIELDS (TEXT (1:255) CHAR))\r\n 10  LOCATION (' alert_ytk102.log'));\r\nTable created.\r\nSQL> SELECT * FROM T_ALERT WHERE ROWNUM <= 10;\r\nTEXT\r\n--------------------------------------------------------------------------\r\nDump file d:\\oracle\\product\\admin\\ytk102\\bdump\\alert_ytk102.log\r\nSat Dec 25 15:55:43 2010\r\nORACLE V10.2.0.5.0 - Production vsnsta=0\r\nvsnsql=14 vsnxtr=3\r\nWindows NT Version V6.1\r\nCPU : 4 - type 586, 2 Physical Cores\r\nProcess Affinity : 0x00000000\r\nMemory (Avail\/Total): Ph:1594M\/2995M, Ph+PgF:4318M\/5989M, VA:1911M\/2047M\r\nSat Dec 25 15:55:43 2010\r\nStarting ORACLE instance (normal)\r\n\u5df2\u9009\u62e910\u884c\u3002<\/pre>\n<p>\u5982\u679c\u6211\u4eec\u7528ROW_NUMBER() OVER()\u5206\u6790\u51fd\u6570\u6765\u4ee3\u66ffROWNUM\u4f2a\u5217\uff0c\u5219\u4e0a\u4e00\u7bc7\u63d0\u5230\u7684\u9519\u8bef\u4e0d\u518d\u4f1a\u51fa\u73b0\uff0c\u800c\u4e14\u4e24\u79cd\u5199\u6cd5\u90fd\u53ef\u4ee5\u5f97\u5230\u6b63\u786e\u7684\u7ed3\u679c\u3002<br \/>\n\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cROW_NUMBER() OVER()\u5206\u6790\u51fd\u6570\u9700\u8981\u4e00\u4e2aORDER BY\u5217\uff0c\u800c\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6ca1\u6709\u660e\u786e\u7684\u6392\u5e8f\u5217\uff0c\u662f\u6839\u636e\u8bfb\u53d6\u987a\u5e8f\u7684\uff0c\u56e0\u6b64\u8fd9\u91cc\u9009\u62e9\u4e86ROWID\u8fdb\u884c\u6392\u5e8f\uff1a<\/p>\n<pre lang='SQL'>SQL> WITH A AS (SELECT ROW_NUMBER() OVER(ORDER BY ROWID) RN, TEXT FROM T_ALERT)\r\n  2  SELECT * FROM A B \r\n  3  WHERE B.RN >= (SELECT MIN(C.RN) FROM A C WHERE TEXT = 'Mon Sep 19 07:18:21  2011');\r\n        RN TEXT\r\n---------- --------------------------------------------------------------------------------\r\n      5739 Mon Sep 19 07:18:21  2011\r\n      5740 Successfully onlined Undo Tablespace 1.\r\n      5741 Mon Sep 19 07:18:21  2011\r\n      5742 SMON: enabling tx recovery\r\n      5743 Mon Sep 19 07:18:21  2011\r\n      5744 Database Characterset is ZHS16GBK\r\n      5745 Opening with internal Resource Manager plan\r\n      5746 replication_dependency_tracking turned off (no async multimaster replication found)\r\n      5747 Starting background process QMNC\r\n      5748 QMNC started with pid=17, OS id=5412\r\n      5749 Mon Sep 19 07:18:29  2011\r\n      5750 Completed: alter database open\r\n\u5df2\u9009\u62e912\u884c\u3002\r\nSQL> WITH A AS (SELECT ROW_NUMBER() OVER(ORDER BY ROWID) RN, TEXT FROM T_ALERT)\r\n  2  SELECT B.* \r\n  3  FROM A B, \r\n  4   (SELECT MIN(RN) RN FROM A WHERE TEXT = 'Mon Sep 19 07:18:21  2011') C\r\n  5  WHERE B.RN >= C.RN;\r\n        RN TEXT\r\n---------- --------------------------------------------------------------------------------\r\n      5739 Mon Sep 19 07:18:21  2011\r\n      5740 Successfully onlined Undo Tablespace 1.\r\n      5741 Mon Sep 19 07:18:21  2011\r\n      5742 SMON: enabling tx recovery\r\n      5743 Mon Sep 19 07:18:21  2011\r\n      5744 Database Characterset is ZHS16GBK\r\n      5745 Opening with internal Resource Manager plan\r\n      5746 replication_dependency_tracking turned off (no async multimaster replication found)\r\n      5747 Starting background process QMNC\r\n      5748 QMNC started with pid=17, OS id=5412\r\n      5749 Mon Sep 19 07:18:29  2011\r\n      5750 Completed: alter database open\r\n\u5df2\u9009\u62e912\u884c\u3002\r\nSQL> WITH A AS (SELECT ROWNUM RN, TEXT FROM T_ALERT)\r\n  2  SELECT B.* \r\n  3  FROM A B, \r\n  4   (SELECT MIN(RN) RN FROM A WHERE TEXT = 'Mon Sep 19 07:18:21  2011') C\r\n  5  WHERE B.RN >= C.RN;\r\n        RN TEXT\r\n---------- --------------------------------------------------------------------------------\r\n      5739 Mon Sep 19 07:18:21  2011\r\n      5740 Successfully onlined Undo Tablespace 1.\r\n      5741 Mon Sep 19 07:18:21  2011\r\n      5742 SMON: enabling tx recovery\r\n      5743 Mon Sep 19 07:18:21  2011\r\n      5744 Database Characterset is ZHS16GBK\r\n      5745 Opening with internal Resource Manager plan\r\n      5746 replication_dependency_tracking turned off (no async multimaster replication found)\r\n      5747 Starting background process QMNC\r\n      5748 QMNC started with pid=17, OS id=5412\r\n      5749 Mon Sep 19 07:18:29  2011\r\n      5750 Completed: alter database open\r\n\u5df2\u9009\u62e912\u884c\u3002<\/pre>\n<p>\u540c\u65f6\u8fd8\u4fee\u6539\u4e86\u4e0a\u4e00\u7bc7\u6587\u7ae0SQL\u7684\u4e00\u4e2a\u5c0fbug\uff0c\u89e3\u51b3\u4e86ALERT\u8bfb\u53d6\u4e2d\u6307\u5b9a\u65f6\u95f4\u51fa\u73b0\u91cd\u590d\u7684\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u5ba2\u6237\u768411.2.0.2\u73af\u5883\u4e2d\u78b0\u5230\u4e86\u8fd9\u4e2a\u95ee\u9898\uff0cOracle\u5728\u5904\u7406\u5305\u542bROWNUM\u56fa\u5316\u7684\u5916\u90e8\u8868\u52a0\u8f7d\u6570\u636e\u65f6\u8fd4\u56de\u9519\u8bef\u7684\u7ed3\u679c\u3002 \u8fd9\u4e00\u7bc7\u63cf\u8ff0\u5229\u7528ROW_NUMBER\u6765\u907f\u514d\u9519\u8bef\u7684\u4ea7\u751f\u3002 \u5916\u90e8\u8868\u6784\u9020\u63cf\u8ff0\u53ef\u4ee5\u53c2\u8003\uff1ahttps:\/\/yangtingkun.net\/?p=35 ROWNUM\u56fa\u5316\u5916\u90e8\u8868\u7ed3\u679c\u96c6\u5b58\u5728\u95ee\u9898\uff1a\uff1ahttps:\/\/yangtingkun.net\/?p=38 \u8fd9\u4e2a\u4f8b\u5b50\u662f\u5728\u672c\u673a\u4e0a\u8fd0\u884c\uff0c\u56e0\u6b64\u53ea\u662f\u544a\u8b66\u65e5\u5fd7\u7684\u540d\u79f0\u53d1\u751f\u4e86\u53d8\u5316\uff0c\u5176\u4ed6\u7684\u8bed\u6cd5\u548c\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e2d\u7684\u4e00\u81f4\uff0c\u5f53\u7136D_ALERT\u76ee\u5f55\u9700\u8981\u6307\u5411background_dump_dest\u53c2\u6570\u6307\u5b9a\u7684\u8def\u5f84\uff1a SQL> CREATE TABLE T_ALERT 2 (TEXT VARCHAR2(4000) 3 ) 4 ORGANIZATION EXTERNAL 5 (TYPE ORACLE_LOADER 6 DEFAULT DIRECTORY D_ALERT 7 ACCESS PARAMETERS 8 (RECORDS DELIMITED BY NEWLINE 9 FIELDS (TEXT (1:255) CHAR)) 10 LOCATION (&#8216; &hellip; <a href=\"https:\/\/yangtingkun.net\/?p=103\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[5],"tags":[27,28,29,30],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2yiY3-1F","_links":{"self":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/103"}],"collection":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=103"}],"version-history":[{"count":2,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/103\/revisions"}],"predecessor-version":[{"id":120,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/103\/revisions\/120"}],"wp:attachment":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}