{"id":11864,"date":"2022-10-02T17:05:36","date_gmt":"2022-10-02T08:05:36","guid":{"rendered":"https:\/\/prodskill.com\/?p=11864"},"modified":"2022-10-04T23:53:57","modified_gmt":"2022-10-04T14:53:57","slug":"oracle-dbms-parallel-execute-2-5-chunk-by-rowid-verify","status":"publish","type":"post","link":"https:\/\/prodskill.com\/zh\/oracle-dbms-parallel-execute-2-5-chunk-by-rowid-verify\/","title":{"rendered":"2.5.\u5de5\u4f5c\u5355\u5143\u62c6\u5206\u7ec6\u8282\u68c0\u67e5\uff08DBMS_PARALLEL_EXECUTE\uff09"},"content":{"rendered":"<p>\u8fd9\u4e0e\u5de5\u4f5c\u5355\u4f4d\u5212\u5206\u7684\u5177\u4f53\u786e\u8ba4\u6709\u5173\u3002\u6211\u4eec\u8003\u5bdf\u7528ROWID\u5212\u5206\u5de5\u4f5c\u5355\u5143\uff08chunk\uff09\u7684\u7ed3\u679c\u5212\u5206\u5f97\u5982\u4f55\u5747\u5300\uff0c\u5de5\u4f5c\u5355\u5143\u7684\u603b\u548c\u662f\u5426\u4e0e\u6574\u4f53\u76f8\u540c\u4e14\u6ca1\u6709\u9057\u6f0f\uff0c\u4ee5\u53ca\u5de5\u4f5c\u5355\u5143\u6570\u91cf\u4e0e\u4f5c\u4e1a\u6570\u91cf\u4e4b\u95f4\u7684\u76f8\u5173\u6027\u3002<\/p>\n\n\n\n<p>\u8fd9\u662f\u4e0a\u4e00\u7bc7\u6587\u7ae0\u7684\u5ef6\u7eed\u3002<\/p>\n\n\n\n<p><a href=\"https:\/\/prodskill.com\/zh\/oracle-dbms-parallel-execute-2-chunk-by-rowid\/\">2. ROWID\u5212\u5206\u65b9\u6cd5\u5e76\u884c\u5904\u7406\u793a\u4f8b<\/a><\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">&lt;&lt;\u76ee\u5f55&gt;&gt;<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\u5207\u6362\u76ee\u5f55\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u5207\u6362<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/prodskill.com\/zh\/oracle-dbms-parallel-execute-2-5-chunk-by-rowid-verify\/#25_%EC%9E%91%EC%97%85_%EB%8B%A8%EC%9C%84_%EB%B6%84%ED%95%A0_%EC%83%81%EC%84%B8_%ED%99%95%EC%9D%B8\" >2.5.\u5de5\u4f5c\u5355\u4f4d\u5206\u5de5\u660e\u7ec6\u6838\u5bf9<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/prodskill.com\/zh\/oracle-dbms-parallel-execute-2-5-chunk-by-rowid-verify\/#251_ROWID%EB%A1%9C_%EB%B6%84%ED%95%A0%ED%95%9C_%EC%9E%91%EC%97%85_%EB%8B%A8%EC%9C%84%EB%93%A4%EC%9D%98_%EA%B7%A0%EC%9D%BC%ED%95%9C_%EC%A0%95%EB%8F%84\" >2.5.1.\u6309 ROWID \u5212\u5206\u7684\u5de5\u4f5c\u5355\u5143\u7684\u4e00\u81f4\u6027<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/prodskill.com\/zh\/oracle-dbms-parallel-execute-2-5-chunk-by-rowid-verify\/#252_ROWID%EB%A1%9C_%EB%B6%84%ED%95%A0%ED%95%9C_%EC%9E%91%EC%97%85_%EB%8B%A8%EC%9C%84%EB%93%A4%EC%9D%B4_%EB%88%84%EB%9D%BD_%EC%97%86%EC%9D%8C_%ED%99%95%EC%9D%B8\" >2.5.2.\u68c0\u67e5\u662f\u5426\u6ca1\u6709\u7f3a\u5931\u7684\u5de5\u4f5c\u5355\u5143\u9664\u4ee5 ROWID<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/prodskill.com\/zh\/oracle-dbms-parallel-execute-2-5-chunk-by-rowid-verify\/#253_%EC%9E%91%EC%97%85_%EB%8B%A8%EC%9C%84Chunk%EC%9D%98_%EC%88%98%EC%99%80_%EC%9E%91%EC%97%85%EC%9D%98_PARALLEL_LEVEL_%EC%8B%A4%ED%96%89%ED%95%98%EB%8A%94_Job%EC%9D%98_%EA%B0%9C%EC%88%98%EA%B0%84%EC%9D%98_%EC%83%81%EA%B4%80%EA%B4%80%EA%B3%84\" >2.5.3.\u5de5\u4f5c\u5355\u5143\uff08\u5757\uff09\u6570\u91cf\u4e0e PARALLEL_LEVEL\uff08\u8981\u6267\u884c\u7684\u4f5c\u4e1a\u6570\u91cf\uff09\u4e4b\u95f4\u7684\u76f8\u5173\u6027<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading\" id=\"2.5._\uc791\uc5c5_\ub2e8\uc704_\ubd84\ud560_\uc0c1\uc138_\ud655\uc778\"><span class=\"ez-toc-section\" id=\"25_%EC%9E%91%EC%97%85_%EB%8B%A8%EC%9C%84_%EB%B6%84%ED%95%A0_%EC%83%81%EC%84%B8_%ED%99%95%EC%9D%B8\"><\/span>2.5.\u5de5\u4f5c\u5355\u4f4d\u5206\u5de5\u660e\u7ec6\u6838\u5bf9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u4e0b\u9762\u6211\u4eec\u5c31\u6765\u770b\u770b\u5de5\u4f5c\u5355\u4f4d\u5212\u5206\u5f97\u597d\u4e0d\u597d\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u6309ROWID\u5212\u5206\u7684\u5de5\u4f5c\u5355\u5143\u7684\u4e00\u81f4\u6027<\/li><li>\u9a8c\u8bc1\u6309 ROWID \u5212\u5206\u7684\u5de5\u4f5c\u5355\u5143\u4e0d\u4e22\u5931<\/li><li>\u4f5c\u4e1a\u7684\u5de5\u4f5c\u5355\u5143\uff08\u5757\uff09\u6570\u91cf\u4e0e PARALLEL_LEVEL\uff08\u6b63\u5728\u6267\u884c\u7684\u4f5c\u4e1a\u6570\u91cf\uff09\u4e4b\u95f4\u7684\u76f8\u5173\u6027<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2.5.1._ROWID\ub85c_\ubd84\ud560\ud55c_\uc791\uc5c5_\ub2e8\uc704\ub4e4\uc758_\uade0\uc77c\ud55c_\uc815\ub3c4\"><span class=\"ez-toc-section\" id=\"251_ROWID%EB%A1%9C_%EB%B6%84%ED%95%A0%ED%95%9C_%EC%9E%91%EC%97%85_%EB%8B%A8%EC%9C%84%EB%93%A4%EC%9D%98_%EA%B7%A0%EC%9D%BC%ED%95%9C_%EC%A0%95%EB%8F%84\"><\/span>2.5.1.\u6309 ROWID \u5212\u5206\u7684\u5de5\u4f5c\u5355\u5143\u7684\u4e00\u81f4\u6027<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u4e0b\u9762\u7684\u5212\u5206\u662f\u6307\u6839\u636eROW Count\u5c06Z_DPE_TEST_TAB\u8868\u5212\u5206\u4e3a10,000\u4e2a\u5de5\u4f5c\u5355\u5143\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"sql\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\" data-no-auto-translation=\"\">-- 2\ub2e8\uacc4: \uc791\uc5c5 \ub2e8\uc704 \ubd84\ud560\nBEGIN\n  DBMS_PARALLEL_EXECUTE.CREATE_CHUNKS_BY_ROWID(TASK_NAME   => 'DPE_TEST(BY ROWID)',\n                                               TABLE_OWNER => USER,\n                                               TABLE_NAME  => 'Z_DPE_TEST_TAB',\n                                               BY_ROW      => TRUE,\n                                               CHUNK_SIZE  => 10000);\nEND;\n\/<\/pre>\n\n\n\n<p>\u6211\u4eec\u770b\u770b\u662f\u4e0d\u662f\u771f\u7684\u5206\u6210\u4e8610000\u4e2a\u6848\u4f8b\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"sql\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\" data-no-auto-translation=\"\">-- \uc791\uc5c5\ub2e8\uc704 \uac1c\uc218 \ud655\uc778 --> 115\nSELECT COUNT(*)\n  FROM USER_PARALLEL_EXECUTE_CHUNKS\nWHERE TASK_NAME = 'DPE_TEST(BY ROWID)';<\/pre>\n\n\n\n<p>\u7531\u4e8e\u603b\u884c\u6570\u4e3a 1,000,000\uff0c\u56e0\u6b64\u770b\u8d77\u6765\u5c06 10,000 \u884c\u5212\u5206\u4e3a 100 \u4e2a\u5757\u5b9e\u9645\u4e0a\u5e94\u8be5\u5212\u5206\u4e3a 115 \u4e2a\u5757\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u6211\u4eec\u8ba1\u7b97\u6bcf\u4e2a\u5757\u7684\u884c\u6570\uff0c<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"sql\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\" data-no-auto-translation=\"\">SELECT  B.CHUNK_ID, COUNT(A.ID), MIN(A.ID) MIN_ID, MAX(A.ID) MAX_ID\n  FROM  Z_DPE_TEST_TAB A,\n        (\n        SELECT  CHUNK_ID, START_ROWID, END_ROWID\n          FROM  USER_PARALLEL_EXECUTE_CHUNKS\n         WHERE  TASK_NAME = 'DPE_TEST(BY ROWID)'\n        ) B\n WHERE  A.ROWID BETWEEN B.START_ROWID AND B.END_ROWID\n GROUP  BY B.CHUNK_ID\n ORDER  BY B.CHUNK_ID;<\/pre>\n\n\n\n<p>\u53ef\u4ee5\u770b\u5230\u662f\u5206\u4e3a1334\u30012064\u30011886\u7b49\u5404\u79cd\u8ba1\u6570\uff0c\u800c\u4e0d\u662f10000\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-51.png\"><img loading=\"lazy\" decoding=\"async\" width=\"883\" height=\"644\" src=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-51.png\" alt=\"chunk\ubcc4 row count\" class=\"wp-image-11865\" srcset=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-51.png 883w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-51-300x219.png 300w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-51-768x560.png 768w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-51-16x12.png 16w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-51-24x18.png 24w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-51-36x26.png 36w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-51-48x35.png 48w\" sizes=\"auto, (max-width: 883px) 100vw, 883px\" \/><\/a><figcaption>\u6bcf\u4e2a\u5757\u7684\u884c\u6570<\/figcaption><\/figure>\n<\/div>\n\n\n<p>\u5757\u4e2d\u5305\u542b\u7684\u884c\u6570\u5728 1,000-2,000 \u90e8\u5206\u4e2d\u4e3a 14\uff0c\u5728 2,000 Row \u90e8\u5206\u4e2d\u4e3a 2\uff0c\u5728 6,000 Row \u90e8\u5206\u4e2d\u4e3a 33\uff0c\u5728 11,000 Row \u90e8\u5206\u4e2d\u4e3a 64\uff0c\u5728 12,000 Row \u90e8\u5206\u4e2d\u4e3a 2\u3002 \uff08\u53ef\u80fd\u4e0d\u4f1a\u6bcf\u6b21\u90fd\u5f97\u5230\u76f8\u540c\u7684\u7ed3\u679c\u3002\uff09<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-52.png\"><img loading=\"lazy\" decoding=\"async\" width=\"573\" height=\"347\" src=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-52.png\" alt=\"Row\uc218 \uad6c\uac04\ubcc4 chunk\uc218\" class=\"wp-image-11866\" srcset=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-52.png 573w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-52-300x182.png 300w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-52-18x12.png 18w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-52-24x15.png 24w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-52-36x22.png 36w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-52-48x29.png 48w\" sizes=\"auto, (max-width: 573px) 100vw, 573px\" \/><\/a><figcaption>\u884c\u6570 \u6bcf\u4e2a\u90e8\u5206\u7684\u5757\u6570<\/figcaption><\/figure>\n<\/div>\n\n\n<p>\u8fd9\u6837\uff0c\u5b83\u5c31\u6ca1\u6709\u88ab\u5206\u6210\u5b8c\u5168\u76f8\u7b49\u7684\u884c\u6570\u3002\u8fd9\u770b\u8d77\u6765\u662f\u56e0\u4e3aROWID\u5212\u5206\u65b9\u6cd5\u662f\u57fa\u4e8eDBA_EXTENTS\u7684\uff0c\u6bcf\u4e2aEXTENT\u4e2d\u5305\u542b\u7684BLOCK\u6570\u91cf\u548c\u6bcf\u4e2aBLOCK\u7684ROW Count\u53ef\u80fd\u4e0d\u540c\u3002\u4f5c\u4e3a\u53c2\u8003\uff0c\u5982\u679c\u8868\u4e2d\u5b58\u5728\u7531\u4e8eDELETE\u7b49\u800c\u672a\u4f7f\u7528\u7684\u5757\uff0c\u5219\u53ef\u4ee5\u5c06\u5176\u4e2d\u5b9e\u9645\u4e0d\u5b58\u5728\u6570\u636e\u7684ROWID\u8282\u521b\u5efa\u4e3a\u5757\u3002\u5f53\u5206\u914d\u7ed9 DBA_EXTENT \u7684\u6570\u636e\u88ab\u5220\u9664\uff0c\u6216\u8005\u5b58\u5728\u5df2\u5206\u914d\u4f46\u4e0d\u5305\u542b\u5b9e\u9645\u6570\u636e\u7684 EXTENT \u65f6\uff0c\u4e5f\u53ef\u80fd\u4f1a\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2.5.2._ROWID\ub85c_\ubd84\ud560\ud55c_\uc791\uc5c5_\ub2e8\uc704\ub4e4\uc774_\ub204\ub77d_\uc5c6\uc74c_\ud655\uc778\"><span class=\"ez-toc-section\" id=\"252_ROWID%EB%A1%9C_%EB%B6%84%ED%95%A0%ED%95%9C_%EC%9E%91%EC%97%85_%EB%8B%A8%EC%9C%84%EB%93%A4%EC%9D%B4_%EB%88%84%EB%9D%BD_%EC%97%86%EC%9D%8C_%ED%99%95%EC%9D%B8\"><\/span>2.5.2.\u68c0\u67e5\u662f\u5426\u6ca1\u6709\u7f3a\u5931\u7684\u5de5\u4f5c\u5355\u5143\u9664\u4ee5 ROWID<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u5f53\u60a8\u5c55\u5f00\u6bcf\u4e2a\u5757\u7684START_ROWID\u548cEND_ROWID\u90e8\u5206\u65f6\uff0c\u4e0d\u4f1a\u4e22\u5931\u6570\u636e\u5417\uff1f<\/p>\n\n\n\n<p>\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u68c0\u67e5\u884c\u6570\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"sql\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\" data-no-auto-translation=\"\">-- Chunk\uc758 RowID range\ub85c \ucd94\ucd9c\ud55c Row Count\nSELECT  COUNT(A.ID) ROW_COUNT\n  FROM  Z_DPE_TEST_TAB A,\n        (\n        SELECT  CHUNK_ID, START_ROWID, END_ROWID\n          FROM  USER_PARALLEL_EXECUTE_CHUNKS\n         WHERE  TASK_NAME = 'DPE_TEST(BY ROWID)'\n        ) B\n WHERE  A.ROWID BETWEEN B.START_ROWID AND B.END_ROWID;<\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-53.png\"><img loading=\"lazy\" decoding=\"async\" width=\"883\" height=\"644\" src=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-53.png\" alt=\"row count \uc77c\uce58 \ud655\uc778\" class=\"wp-image-11867\" srcset=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-53.png 883w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-53-300x219.png 300w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-53-768x560.png 768w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-53-16x12.png 16w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-53-24x18.png 24w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-53-36x26.png 36w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-53-48x35.png 48w\" sizes=\"auto, (max-width: 883px) 100vw, 883px\" \/><\/a><figcaption>\u68c0\u67e5\u884c\u6570\u5339\u914d<\/figcaption><\/figure>\n<\/div>\n\n\n<p>\u4e0e\u603b Row Count 1,000,000 \u4e00\u81f4\uff0c\u6211\u4eec\u9996\u5148\u786e\u8ba4 Count \u6ca1\u6709\u9057\u6f0f\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u6839\u636e chunk \u7684 START_ROWID \u5230 END_ROWID \u8303\u56f4\u5185\u63d0\u53d6\u7684\u6570\u636e\uff0c\u5bf9\u539f\u59cb\u6570\u636e\u8fdb\u884c LEFT OUTER JOIN \u65f6\uff0c\u68c0\u67e5\u662f\u5426\u6709\u4efb\u4f55\u8fde\u63a5\u6761\u4ef6\u4e2d\u7f3a\u5c11\u9879\u76ee\u3002\uff09\u8ba9\u6211\u4eec\u68c0\u67e5\u662f\u5426\u6709\u6570\u636e\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"sql\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\" data-no-auto-translation=\"\">-- Chunk\uc758 RowID\ub85c \ucd94\ucd9c\ud55c \ub370\uc774\ud130\uc758 \ub204\ub77d\uc5c6\uc74c \ud655\uc778\nSELECT  *\n  FROM  Z_DPE_TEST_TAB A LEFT OUTER JOIN\n        (\n        SELECT  A.ID  -- Chunk\uc758 RowID range\ub85c \ucd94\ucd9c\ud55c \ub370\uc774\ud130\n          FROM  Z_DPE_TEST_TAB A,\n                (\n                SELECT  CHUNK_ID, START_ROWID, END_ROWID\n                  FROM  USER_PARALLEL_EXECUTE_CHUNKS\n                 WHERE  TASK_NAME = 'DPE_TEST(BY ROWID)'\n                ) B\n         WHERE  A.ROWID BETWEEN B.START_ROWID AND B.END_ROWID\n        ) B ON (A.ID = B.ID)\n WHERE  B.ID IS NULL;<\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-54.png\"><img loading=\"lazy\" decoding=\"async\" width=\"883\" height=\"644\" src=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-54.png\" alt=\"\ub370\uc774\ud130 \ub204\ub77d \uc5c6\uc74c \ud655\uc778\" class=\"wp-image-11868\" srcset=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-54.png 883w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-54-300x219.png 300w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-54-768x560.png 768w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-54-16x12.png 16w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-54-24x18.png 24w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-54-36x26.png 36w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-54-48x35.png 48w\" sizes=\"auto, (max-width: 883px) 100vw, 883px\" \/><\/a><figcaption>\u786e\u4fdd\u6ca1\u6709\u6570\u636e\u4e22\u5931<\/figcaption><\/figure>\n<\/div>\n\n\n<p>\u4ece\u4e0a\u9762\u7684\u7ed3\u679c\u53ef\u4ee5\u770b\u51fa\uff0c\u6ca1\u6709\u7f3a\u5931\u6570\u636e\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2.5.3._\uc791\uc5c5_\ub2e8\uc704(Chunk)\uc758_\uc218\uc640_\uc791\uc5c5\uc758_PARALLEL_LEVEL_(\uc2e4\ud589\ud558\ub294_Job\uc758_\uac1c\uc218)\uac04\uc758_\uc0c1\uad00\uad00\uacc4\"><span class=\"ez-toc-section\" id=\"253_%EC%9E%91%EC%97%85_%EB%8B%A8%EC%9C%84Chunk%EC%9D%98_%EC%88%98%EC%99%80_%EC%9E%91%EC%97%85%EC%9D%98_PARALLEL_LEVEL_%EC%8B%A4%ED%96%89%ED%95%98%EB%8A%94_Job%EC%9D%98_%EA%B0%9C%EC%88%98%EA%B0%84%EC%9D%98_%EC%83%81%EA%B4%80%EA%B4%80%EA%B3%84\"><\/span>2.5.3.\u5de5\u4f5c\u5355\u5143\uff08\u5757\uff09\u6570\u91cf\u4e0e PARALLEL_LEVEL\uff08\u8981\u6267\u884c\u7684\u4f5c\u4e1a\u6570\u91cf\uff09\u4e4b\u95f4\u7684\u76f8\u5173\u6027<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>&lt;\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e2d\u76842.3\u3002\u5728\u6267\u884c\u4efb\u52a1&gt;\u4e2d\uff0c\u6709\u4ee5\u4e0b\u5185\u5bb9\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>PARALLEL_LEVEL\u8868\u793a\u8981\u540c\u65f6\u6267\u884c\u7684\u4f5c\u4e1a\u7684\u6570\u91cf\uff0c\u5373\u5e76\u884c\u5ea6(DOP)\uff0c\u5e76\u4e14\u53ef\u4ee5\u7b49\u4e8e\u6216\u5c0f\u4e8e\u4f5c\u4e3a\u5de5\u4f5c\u5355\u5143\u7684\u5757\u7684\u6570\u91cf\u3002\u5728\u76f8\u540c\u7684\u60c5\u51b5\u4e0b\uff0c\u4e00\u4e2a\u4f5c\u4e1a\u5904\u7406\u4e00\u4e2a chunk\uff0c\u5728\u8f83\u5c0f\u7684\u60c5\u51b5\u4e0b\uff0c\u4e00\u4e2a\u4f5c\u4e1a\u5904\u7406\u591a\u4e2a chunk\u3002<\/p><\/blockquote>\n\n\n\n<p>* \u53c2\u8003\uff1a <a href=\"https:\/\/prodskill.com\/zh\/oracle-dbms-parallel-execute-2-chunk-by-rowid\/#23_%EC%9E%91%EC%97%85_%EC%8B%A4%ED%96%89\">2. ROWID\u5212\u5206\u65b9\u6cd5\u5e76\u884c\u5904\u7406example_2.3\u3002\u8fd0\u884c\u4efb\u52a1<\/a><\/p>\n\n\n\n<p>\u8ba9\u6211\u4eec\u8003\u8651\u4ee5\u4e0b\u6709\u5173\u5757\u6570\u91cf\u548c\u4f5c\u4e1a\u6570\u91cf\u7684\u60c5\u51b5\u3002<\/p>\n\n\n\n<p><strong>\u25bc \u5f53 chunk \u6570\u91cf\u548c job \u6570\u91cf\u76f8\u540c\u65f6\uff08Chunk = Job\uff09<\/strong><\/p>\n\n\n\n<p>\u4e00\u65e6\u4f5c\u4e1a\u5b8c\u6210\u5206\u914d\u5757\u7684\u6267\u884c\uff0c\u5b83\u5c31\u4f1a\u7ec8\u6b62\uff0c\u56e0\u4e3a\u6ca1\u6709\u66f4\u591a\u7684\u5de5\u4f5c\u8981\u505a\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-55.png\"><img loading=\"lazy\" decoding=\"async\" width=\"637\" height=\"252\" src=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-55.png\" alt=\"Chunk\uc218\uc640 Job\uc218\uac00 \ub3d9\uc77c\ud55c \uacbd\uc6b0\" class=\"wp-image-11869\" srcset=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-55.png 637w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-55-300x119.png 300w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-55-18x7.png 18w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-55-24x9.png 24w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-55-36x14.png 36w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-55-48x19.png 48w\" sizes=\"auto, (max-width: 637px) 100vw, 637px\" \/><\/a><figcaption>\u5f53 chunk \u6570\u91cf\u548c job \u6570\u91cf\u76f8\u540c\u65f6<\/figcaption><\/figure>\n<\/div>\n\n\n<p><strong>\u25bc \u5f53 Job \u6570\u91cf\u5c0f\u4e8e Chunks \u6570\u91cf\u65f6\uff08Chunk &gt; Job\uff09<\/strong><\/p>\n\n\n\n<p>\u5f53\u5206\u914d\u7684chunk\u7684\u4f5c\u4e1a\u5b8c\u6210\u540e\uff0c\u5c1a\u672a\u6267\u884c\u7684chunk\u5c06\u88ab\u5206\u914d\u5e76\u7ee7\u7eed\u6267\u884c\u3002\u4e0b\u9762\u662f\u6709 3 \u4e2a Job \u65f6\u7684\u793a\u4f8b\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-56.png\"><img loading=\"lazy\" decoding=\"async\" width=\"648\" height=\"252\" src=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-56.png\" alt=\"Chunk\uc218\ubcf4\ub2e4 Job\uc218\uac00 \uc801\uc740 \uacbd\uc6b0 (Chunk &gt; Job)\" class=\"wp-image-11870\" srcset=\"https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-56.png 648w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-56-300x117.png 300w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-56-18x7.png 18w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-56-24x9.png 24w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-56-36x14.png 36w, https:\/\/prodskill.com\/wp-content\/uploads\/2022\/10\/image-56-48x19.png 48w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/a><figcaption>\u5f53\u4f5c\u4e1a\u6570\u91cf\u5c0f\u4e8e chunk \u6570\u91cf\u65f6\uff08Chunk &gt; Job\uff09<\/figcaption><\/figure>\n<\/div>\n\n\n<p>\u53e6\u5916\uff0c\u5982\u679cJobs\u7684\u6570\u91cf\u5927\u4e8eChunk\u7684\u6570\u91cf\uff08Chunk&lt;Job\uff09\uff0c\u4e5f\u662f\u53ef\u4ee5\u7684\uff0c\u4f46\u662f\u6700\u597d\u4e0d\u8981\u5e94\u7528\uff0c\u56e0\u4e3aChunks\u4e0d\u4f1a\u88ab\u5206\u914d\uff0c\u901a\u8fc7\u7ef4\u62a4\u8fd0\u884c\u72b6\u6001\u4f1a\u4f7f\u7528\u4e0d\u5fc5\u8981\u7684\u8d44\u6e90\u3002<\/p>\n\n\n\n<p>* \u53c2\u8003\uff1a <a href=\"https:\/\/docs.oracle.com\/cd\/E11882_01\/appdev.112\/e40758\/d_parallel_ex.htm#ARPLS67339\" target=\"_blank\" rel=\"noreferrer noopener\">DBMS_PARALLEL_EXECUTE \u6309 ROWID \u7684\u5757\u793a\u4f8b<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p>\u5230\u6b64\u4e3a\u6b62\uff0c\u6211\u4eec\u5df2\u7ecf\u4e86\u89e3\u4e86ROWID\u7684\u5212\u5206\u65b9\u6cd5\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u770b\u770bNUMBER\u5217\u7684\u5212\u5206\u65b9\u6cd5\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u4e0e\u68c0\u67e5\u5de5\u4f5c\u5355\u5143\u5212\u5206\u7684\u7ec6\u8282\u6709\u5173\u3002\u8003\u5bdfROWID\u5212\u5206\u5de5\u4f5c\u5355\u5143\uff08chunks\uff09\u7ed3\u679c\u7684\u5e73\u5747\u5212\u5206\u7a0b\u5ea6\uff0c\u5de5\u4f5c\u5355\u5143\u4e4b\u548c\u662f\u5426\u4e0e\u6574\u4f53\u76f8\u540c\uff0c\u662f\u5426\u6709\u9057\u6f0f\uff0c\u4ee5\u53ca\u5de5\u4f5c\u5355\u5143\u4e2a\u6570\u4e0e\u804c\u4f4d\u6570\u91cf\u3002\u8fd9\u662f\u4e0a\u4e00\u7bc7\u6587\u7ae0\u7684\u5ef6\u7eed\u3002 2\u3001ROWID\u5212\u5206\u6cd5\u5e76\u884c\u5904\u7406\u6848\u4f8b 2.5\uff0e\u62c6\u5206\u5de5\u4f5c\u5355\u4f4d...<\/p>","protected":false},"author":1,"featured_media":11866,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[242,243,244,245,246],"class_list":["post-11864","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oracle","tag-oracle","tag-dbms_parallel_execute","tag-244","tag-dml-parallel-processing","tag-dml-"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2.5. \uc791\uc5c5 \ub2e8\uc704 \ubd84\ud560 \uc0c1\uc138 \ud655\uc778 (DBMS_PARALLEL_EXECUTE) - \uc0dd\uc0b0\uc131 Skill<\/title>\n<meta name=\"description\" content=\"\uc791\uc5c5 \ub2e8\uc704 \ubd84\ud560 \uc0c1\uc138 \ud655\uc778 \uad00\ub828 \ub0b4\uc6a9\uc774\ub2e4. ROWID\ub85c \uc791\uc5c5 \ub2e8\uc704(chunk)\ub97c \ubd84\ud560\ud55c \uacb0\uacfc\uac00 \uc5b4\ub290 \uc815\ub3c4\ub85c \uade0\uc77c\ud558\uac8c \ubd84\ud560\ub418\ub294\uc9c0, \uc791\uc5c5 \ub2e8\uc704\uc758 \ud569\uc774 \uc804\uccb4\uc640 \ub3d9\uc77c\ud558\uac8c \ub204\ub77d\uc774 \uc5c6\ub294\uc9c0, \uc791\uc5c5\ub2e8\uc704 \uc218\uc640 job \uac1c\uc218\uc758 \uc0c1\uad00\uad00\uacc4\ub97c \uc0b4\ud3b4\ubcf8\ub2e4.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/prodskill.com\/zh\/oracle-dbms-parallel-execute-2-5-chunk-by-rowid-verify\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2.5. \uc791\uc5c5 \ub2e8\uc704 \ubd84\ud560 \uc0c1\uc138 \ud655\uc778 (DBMS_PARALLEL_EXECUTE) - \uc0dd\uc0b0\uc131 Skill\" \/>\n<meta property=\"og:description\" content=\"\uc791\uc5c5 \ub2e8\uc704 \ubd84\ud560 \uc0c1\uc138 \ud655\uc778 \uad00\ub828 \ub0b4\uc6a9\uc774\ub2e4. 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