{"id":4992,"date":"2024-11-14T12:05:44","date_gmt":"2024-11-14T04:05:44","guid":{"rendered":"https:\/\/fwq.ai\/blog\/4992\/"},"modified":"2024-11-14T12:05:44","modified_gmt":"2024-11-14T04:05:44","slug":"oracle%e7%b4%a2%e5%bc%95%e6%80%8e%e4%b9%88%e5%88%9b%e5%bb%ba","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/4992\/","title":{"rendered":"oracle\u7d22\u5f15\u600e\u4e48\u521b\u5efa"},"content":{"rendered":"

\n oracle\u4e2d\u521b\u5efa\u7d22\u5f15\u7684\u6b65\u9aa4\u6709\u4e09\u4e2a\uff1a1. \u786e\u5b9a\u8981\u7d22\u5f15\u7684\u5217\uff1b2. \u786e\u5b9a\u7d22\u5f15\u7c7b\u578b\uff1b3. \u521b\u5efa\u7d22\u5f15\u3002\n<\/p><\/blockquote>\n

\"oracle\u7d22\u5f15\u600e\u4e48\u521b\u5efa\u63d2\u56fe\"<\/p>\n

Oracle \u7d22\u5f15\u521b\u5efa\u65b9\u6cd5<\/h2>\n

\u521b\u5efa\u7d22\u5f15\u7684\u6b65\u9aa4\uff1a<\/strong><\/p>\n

    \n
  1. \u786e\u5b9a\u8981\u7d22\u5f15\u7684\u5217\u3002<\/li>\n
  2. \u786e\u5b9a\u7d22\u5f15\u7c7b\u578b\u3002<\/li>\n
  3. \u521b\u5efa\u7d22\u5f15\u3002<\/li>\n<\/ol>\n

    \u786e\u5b9a\u8981\u7d22\u5f15\u7684\u5217\uff1a<\/strong><\/p>\n

    \u9009\u62e9\u7d22\u5f15\u5217\u65f6\uff0c\u5e94\u8003\u8651\u4ee5\u4e0b\u56e0\u7d20\uff1a<\/p>\n

      \n
    • \u7ecf\u5e38\u7528\u4e8e\u67e5\u8be2\u7684\u5217\u3002<\/li>\n
    • \u5177\u6709\u552f\u4e00\u6216\u63a5\u8fd1\u552f\u4e00\u7684\u503c\u7684\u5217\u3002<\/li>\n
    • \u7ecf\u5e38\u4e0e\u5176\u4ed6\u5217\u4e00\u8d77\u67e5\u8be2\u7684\u5217\u3002<\/li>\n<\/ul>\n

      \u786e\u5b9a\u7d22\u5f15\u7c7b\u578b\uff1a<\/strong><\/p>\n

      Oracle \u63d0\u4f9b\u4e86\u4ee5\u4e0b\u7d22\u5f15\u7c7b\u578b\uff1a<\/p>\n

        \n
      • B-\u6811\u7d22\u5f15\uff1a<\/strong>\u9002\u7528\u4e8e\u5927\u591a\u6570\u67e5\u8be2\u7c7b\u578b\u3002<\/li>\n
      • \u4f4d\u56fe\u7d22\u5f15\uff1a<\/strong>\u9002\u7528\u4e8e\u5177\u6709\u5c11\u91cf\u4e0d\u540c\u503c\u7684\u5217\u3002<\/li>\n
      • \u51fd\u6570\u7d22\u5f15\uff1a<\/strong>\u7528\u4e8e\u5bf9\u5b58\u50a8\u5728\u7d22\u5f15\u4e2d\u7684\u5217\u503c\u6267\u884c\u51fd\u6570\u3002<\/li>\n
      • \u53cd\u5411\u7d22\u5f15\uff1a<\/strong>\u7528\u4e8e\u6309\u76f8\u53cd\u987a\u5e8f\uff08\u5012\u5e8f\uff09\u641c\u7d22\u6570\u636e\u3002<\/li>\n<\/ul>\n

        \u521b\u5efa\u7d22\u5f15\uff1a<\/strong><\/p>\n

        \u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u521b\u5efa\u7d22\u5f15\uff1a<\/p>\n

        CREATE INDEX <\u7d22\u5f15\u540d> ON <\u8868\u540d> (<\u5217\u540d>)<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u793a\u4f8b\uff1a<\/strong><\/p>\n
        \u5728 customers \u8868\u4e2d\u4e3a name \u5217\u521b\u5efa B-\u6811\u7d22\u5f15\uff1a<\/p>\n
        CREATE INDEX idx_customers_name ON customers (name)<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u9009\u9879\uff1a<\/strong><\/p>\n
        \u53ef\u4ee5\u6dfb\u52a0\u4ee5\u4e0b\u9009\u9879\u6765\u4fee\u6539\u7d22\u5f15\u7684\u884c\u4e3a\uff1a<\/p>\n
          \n
        •  UNIQUE\uff1a<\/strong>\u786e\u4fdd\u7d22\u5f15\u5217\u7684\u503c\u552f\u4e00\u3002<\/li>\n
        •  DESC\uff1a<\/strong>\u6309\u964d\u5e8f\u6392\u5e8f\u7d22\u5f15\u3002<\/li>\n
        •  PARALLEL\uff1a<\/strong>\u5e76\u884c\u521b\u5efa\u7d22\u5f15\u3002<\/li>\n
        •  COMPRESS\uff1a<\/strong>\u538b\u7f29\u7d22\u5f15\u4ee5\u8282\u7701\u7a7a\u95f4\u3002<\/li>\n<\/ul>\n
          \u6ce8\u610f\uff1a<\/strong><\/p>\n
            \n
          • \u5728\u521b\u5efa\u7d22\u5f15\u4e4b\u524d\uff0c\u5e94\u8003\u8651\u7d22\u5f15\u7684\u7ef4\u62a4\u6210\u672c\u3002<\/li>\n
          • \u7d22\u5f15\u5e94\u5b9a\u671f\u91cd\u5efa\uff0c\u4ee5\u786e\u4fdd\u5176\u4fdd\u6301\u6700\u65b0\u548c\u9ad8\u6548\u3002<\/li>\n<\/ul>\n
            \u4ee5\u4e0a\u5c31\u662f\u7d22\u5f15\u600e\u4e48\u521b\u5efa\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
            oracle\u4e2d\u521b\u5efa\u7d22\u5f15\u7684\u6b65\u9aa4\u6709\u4e09\u4e2a\uff1a1. \u786e\u5b9a\u8981\u7d22\u5f15\u7684\u5217\uff1b2. \u786e\u5b9a\u7d22\u5f15\u7c7b\u578b\uff1b3. \u521b\u5efa\u7d22\u5f15\u3002 Oracle \u7d22\u5f15\u521b\u5efa\u65b9\u6cd5 \u521b\u5efa\u7d22\u5f15\u7684\u6b65\u9aa4\uff1a \u786e\u5b9a\u8981\u7d22\u5f15\u7684\u5217\u3002 \u786e\u5b9a\u7d22\u5f15\u7c7b\u578b\u3002 \u521b\u5efa\u7d22\u5f15\u3002 \u786e\u5b9a\u8981\u7d22\u5f15\u7684\u5217\uff1a \u9009\u62e9\u7d22\u5f15\u5217\u65f6\uff0c\u5e94\u8003\u8651\u4ee5\u4e0b\u56e0\u7d20\uff1a \u7ecf\u5e38\u7528\u4e8e\u67e5\u8be2\u7684\u5217\u3002 \u5177\u6709\u552f\u4e00\u6216\u63a5\u8fd1\u552f\u4e00\u7684\u503c\u7684\u5217\u3002 \u7ecf\u5e38\u4e0e\u5176\u4ed6\u5217\u4e00\u8d77\u67e5\u8be2\u7684\u5217\u3002 \u786e\u5b9a\u7d22\u5f15\u7c7b\u578b\uff1a Oracle \u63d0\u4f9b\u4e86\u4ee5\u4e0b\u7d22\u5f15\u7c7b\u578b\uff1a B-\u6811\u7d22\u5f15\uff1a\u9002\u7528\u4e8e\u5927\u591a\u6570\u67e5\u8be2\u7c7b\u578b\u3002 \u4f4d\u56fe\u7d22\u5f15\uff1a\u9002\u7528\u4e8e\u5177\u6709\u5c11\u91cf\u4e0d\u540c\u503c\u7684\u5217\u3002 \u51fd\u6570\u7d22\u5f15\uff1a\u7528\u4e8e\u5bf9\u5b58\u50a8\u5728\u7d22\u5f15\u4e2d\u7684\u5217\u503c\u6267\u884c\u51fd\u6570\u3002 \u53cd\u5411\u7d22\u5f15\uff1a\u7528\u4e8e\u6309\u76f8\u53cd\u987a\u5e8f\uff08\u5012\u5e8f\uff09\u641c\u7d22\u6570\u636e\u3002 \u521b\u5efa\u7d22\u5f15\uff1a \u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u521b\u5efa\u7d22\u5f15\uff1a CREATE INDEX <\u7d22\u5f15\u540d> ON <\u8868\u540d> (<\u5217\u540d>) \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b\uff1a \u5728 customers \u8868\u4e2d\u4e3a name \u5217\u521b\u5efa B-\u6811\u7d22\u5f15\uff1a CREATE INDEX idx_customers_name ON customers (name) \u767b\u5f55\u540e\u590d\u5236 \u9009\u9879\uff1a \u53ef\u4ee5\u6dfb\u52a0\u4ee5\u4e0b\u9009\u9879\u6765\u4fee\u6539\u7d22\u5f15\u7684\u884c\u4e3a\uff1a UNIQUE\uff1a\u786e\u4fdd\u7d22\u5f15\u5217\u7684\u503c\u552f\u4e00\u3002 DESC\uff1a\u6309\u964d\u5e8f\u6392\u5e8f\u7d22\u5f15\u3002 PARALLEL\uff1a\u5e76\u884c\u521b\u5efa\u7d22\u5f15\u3002 COMPRESS\uff1a\u538b\u7f29\u7d22\u5f15\u4ee5\u8282\u7701\u7a7a\u95f4\u3002 \u6ce8\u610f\uff1a \u5728\u521b\u5efa\u7d22\u5f15\u4e4b\u524d\uff0c\u5e94\u8003\u8651\u7d22\u5f15\u7684\u7ef4\u62a4\u6210\u672c\u3002 \u7d22\u5f15\u5e94\u5b9a\u671f\u91cd\u5efa\uff0c\u4ee5\u786e\u4fdd\u5176\u4fdd\u6301\u6700\u65b0\u548c\u9ad8\u6548\u3002 \u4ee5\u4e0a\u5c31\u662f\u7d22\u5f15\u600e\u4e48\u521b\u5efa\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-4992","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/4992","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=4992"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/4992\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=4992"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=4992"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=4992"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}