{"id":199856,"date":"2025-05-06T09:40:37","date_gmt":"2025-05-06T01:40:37","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199856\/"},"modified":"2025-05-06T09:40:37","modified_gmt":"2025-05-06T01:40:37","slug":"%e5%88%86%e6%9e%90oracle%e6%95%b0%e6%8d%ae%e5%ba%93%e4%b8%ad%e7%b4%a2%e5%bc%95%e7%9a%84%e9%87%8d%e5%a4%8d%e6%83%85%e5%86%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199856\/","title":{"rendered":"\u5206\u6790Oracle\u6570\u636e\u5e93\u4e2d\u7d22\u5f15\u7684\u91cd\u590d\u60c5\u51b5"},"content":{"rendered":"

<\/b> <\/p>\n

\u5206\u6790Oracle\u6570\u636e\u5e93\u4e2d\u7d22\u5f15\u7684\u91cd\u590d\u60c5\u51b5<\/h1>\n

\u5728\u6570\u636e\u5e93\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u4e3b\u673a\u5b9d\u8d1d\u5c31\u6574\u7406\u5206\u4eab\u300a\u5206\u6790Oracle\u6570\u636e\u5e93\u4e2d\u7d22\u5f15\u7684\u91cd\u590d\u60c5\u51b5\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n

Oracle\u6570\u636e\u5e93\u4e2d\u7d22\u5f15\u91cd\u590d\u60c5\u51b5\u5206\u6790<\/p>\n

\u7d22\u5f15\u5728\u6570\u636e\u5e93\u4e2d\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u5b83\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u7684\u6548\u7387\uff0c\u52a0\u5feb\u6570\u636e\u68c0\u7d22\u7684\u901f\u5ea6\u3002\u7136\u800c\uff0c\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6709\u65f6\u5019\u4f1a\u51fa\u73b0\u7d22\u5f15\u91cd\u590d\u7684\u60c5\u51b5\uff0c\u8fd9\u4f1a\u5f71\u54cd\u5230\u6570\u636e\u5e93\u7684\u6027\u80fd\u548c\u67e5\u8be2\u6548\u7387\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5206\u6790Oracle\u6570\u636e\u5e93\u4e2d\u7d22\u5f15\u91cd\u590d\u7684\u60c5\u51b5\uff0c\u5e76\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u6f14\u793a\u3002<\/p>\n

    \n
  1. \u7d22\u5f15\u91cd\u590d\u7684\u5f71\u54cd<\/li>\n<\/ol>\n

    \u7d22\u5f15\u91cd\u590d\u4f1a\u5bfc\u81f4\u6570\u636e\u5e93\u7684\u5b58\u50a8\u7a7a\u95f4\u6d6a\u8d39\uff0c\u589e\u52a0\u6570\u636e\u66f4\u65b0\u7684\u6210\u672c\uff0c\u964d\u4f4e\u6570\u636e\u5e93\u7684\u6027\u80fd\u3002\u5f53\u6570\u636e\u5e93\u4e2d\u5b58\u5728\u8fc7\u591a\u7684\u91cd\u590d\u7d22\u5f15\u65f6\uff0c\u67e5\u8be2\u6027\u80fd\u53ef\u80fd\u4f1a\u53d7\u5230\u5f71\u54cd\uff0c\u56e0\u4e3a\u6570\u636e\u5e93\u9700\u8981\u7ef4\u62a4\u8fd9\u4e9b\u91cd\u590d\u7684\u7d22\u5f15\uff0c\u5bfc\u81f4\u67e5\u8be2\u53d8\u6162\u3002\u56e0\u6b64\uff0c\u53ca\u65f6\u6392\u67e5\u548c\u6e05\u7406\u7d22\u5f15\u91cd\u590d\u662f\u6570\u636e\u5e93\u4f18\u5316\u7684\u91cd\u8981\u4e00\u73af\u3002<\/p>\n

      \n
    1. \u5206\u6790\u7d22\u5f15\u91cd\u590d\u7684\u65b9\u6cd5<\/li>\n<\/ol>\n

      \u5728Oracle\u6570\u636e\u5e93\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u7cfb\u7edf\u89c6\u56fedba_indexes\u548cdba_ind_columns\u6765\u67e5\u770b\u7d22\u5f15\u4fe1\u606f\uff0c\u4ece\u800c\u627e\u51fa\u662f\u5426\u5b58\u5728\u91cd\u590d\u7684\u7d22\u5f15\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u67e5\u8be2\u8bed\u53e5\uff0c\u53ef\u4ee5\u5217\u51fa\u6570\u636e\u5e93\u4e2d\u7684\u6240\u6709\u7d22\u5f15\u4ee5\u53ca\u5176\u6240\u5c5e\u7684\u5217\u4fe1\u606f\uff1a<\/p>\n

      SELECT i.index_name, i.table_name, LISTAGG(i.column_name, ', ') WITHIN GROUP (ORDER BY i.column_position) AS index_columns\nFROM dba_ind_columns i\nJOIN dba_indexes idx ON i.index_name = idx.index_name\nAND i.table_name = idx.table_name\nGROUP BY i.index_name, i.table_name;<\/pre>\n
      \u8fd0\u884c\u4ee5\u4e0a\u4ee3\u7801\u53ef\u4ee5\u5f97\u5230\u7d22\u5f15\u53ca\u5176\u5bf9\u5e94\u7684\u5217\u4fe1\u606f\uff0c\u901a\u8fc7\u89c2\u5bdf\u7ed3\u679c\u53ef\u4ee5\u521d\u6b65\u5224\u65ad\u662f\u5426\u5b58\u5728\u91cd\u590d\u7684\u7d22\u5f15\u3002<\/p>\n
        \n
      1. \u5177\u4f53\u4ee3\u7801\u793a\u4f8b<\/li>\n<\/ol>\n
        \u4e3a\u4e86\u6f14\u793a\u7d22\u5f15\u91cd\u590d\u7684\u60c5\u51b5\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e00\u4e2a\u6d4b\u8bd5\u8868\uff0c\u5e76\u5728\u8868\u4e0a\u521b\u5efa\u4e24\u4e2a\u76f8\u540c\u7684\u7d22\u5f15\u3002\u7136\u540e\u4f7f\u7528\u4e0a\u8ff0\u67e5\u8be2\u8bed\u53e5\u67e5\u770b\u7d22\u5f15\u4fe1\u606f\u3002<\/p>\n
        -- \u521b\u5efa\u6d4b\u8bd5\u8868\nCREATE TABLE test_table (\n    id NUMBER,\n    name VARCHAR2(50)\n);\n\n-- \u5728\u8868\u4e0a\u521b\u5efa\u4e24\u4e2a\u76f8\u540c\u7684\u7d22\u5f15\nCREATE INDEX idx_test_table_id ON test_table(id);\nCREATE INDEX idx_test_table_id_2 ON test_table(id);\n\n-- \u67e5\u8be2\u7d22\u5f15\u4fe1\u606f\nSELECT i.index_name, i.table_name, LISTAGG(i.column_name, ', ') WITHIN GROUP (ORDER BY i.column_position) AS index_columns\nFROM dba_ind_columns i\nJOIN dba_indexes idx ON i.index_name = idx.index_name\nAND i.table_name = idx.table_name\nWHERE idx.table_name = 'TEST_TABLE'\nGROUP BY i.index_name, i.table_name;<\/pre>\n
        \u8fd0\u884c\u4ee5\u4e0a\u4ee3\u7801\uff0c\u53ef\u4ee5\u770b\u5230idx_test_table_id\u548cidx_test_table_id_2\u4e24\u4e2a\u7d22\u5f15\u90fd\u662f\u57fa\u4e8etest_table\u8868\u7684id\u5217\u521b\u5efa\u7684\uff0c\u8fd9\u8bf4\u660e\u5b58\u5728\u7d22\u5f15\u91cd\u590d\u7684\u60c5\u51b5\u3002<\/p>\n
          \n
        1. \u6e05\u7406\u7d22\u5f15\u91cd\u590d<\/li>\n<\/ol>\n
          \u6e05\u7406\u7d22\u5f15\u91cd\u590d\u975e\u5e38\u91cd\u8981\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4ee3\u7801\u5220\u9664\u91cd\u590d\u7684\u7d22\u5f15\uff1a<\/p>\n
          -- \u5220\u9664\u91cd\u590d\u7684\u7d22\u5f15\nDROP INDEX idx_test_table_id_2;<\/pre>\n
          \u5220\u9664\u91cd\u590d\u7684\u7d22\u5f15\u540e\uff0c\u53ef\u4ee5\u518d\u6b21\u8fd0\u884c\u67e5\u8be2\u8bed\u53e5\u9a8c\u8bc1\u7d22\u5f15\u60c5\u51b5\uff0c\u786e\u4fdd\u6570\u636e\u5e93\u4e2d\u4e0d\u518d\u5b58\u5728\u91cd\u590d\u7684\u7d22\u5f15\u3002<\/p>\n
          \u603b\u7ed3<\/p>\n
          \u7d22\u5f15\u91cd\u590d\u662f\u6570\u636e\u5e93\u6027\u80fd\u4f18\u5316\u4e2d\u9700\u8981\u91cd\u70b9\u5173\u6ce8\u7684\u95ee\u9898\uff0c\u53ca\u65f6\u6392\u67e5\u548c\u6e05\u7406\u7d22\u5f15\u91cd\u590d\u53ef\u4ee5\u63d0\u5347\u6570\u636e\u5e93\u7684\u67e5\u8be2\u6548\u7387\u548c\u6027\u80fd\u3002\u901a\u8fc7\u5206\u6790\u7d22\u5f15\u4fe1\u606f\uff0c\u627e\u51fa\u91cd\u590d\u7684\u7d22\u5f15\uff0c\u5e76\u6e05\u7406\u6389\u591a\u4f59\u7684\u7d22\u5f15\uff0c\u53ef\u4ee5\u6709\u6548\u907f\u514d\u7d22\u5f15\u91cd\u590d\u5e26\u6765\u7684\u6027\u80fd\u5f71\u54cd\u3002\u5e0c\u671b\u4ee5\u4e0a\u5185\u5bb9\u5bf9\u60a8\u5728Oracle\u6570\u636e\u5e93\u7d22\u5f15\u91cd\u590d\u60c5\u51b5\u5206\u6790\u65b9\u9762\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n
          \u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5206\u6790Oracle\u6570\u636e\u5e93\u4e2d\u7d22\u5f15\u7684\u91cd\u590d\u60c5\u51b5\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8eOracle,\u91cd\u590d\u68c0\u6d4b,\u7d22\u5f15\u5206\u6790\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n
          \n
          \n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
          \u5206\u6790Oracle\u6570\u636e\u5e93\u4e2d\u7d22\u5f15\u7684\u91cd...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-199856","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199856","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=199856"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199856\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199856"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199856"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}