{"id":15857,"date":"2023-12-04T23:27:40","date_gmt":"2023-12-04T15:27:40","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=15857"},"modified":"2023-12-04T23:34:20","modified_gmt":"2023-12-04T15:34:20","slug":"oracle-zhong-gei-chu-zai-star-schema-zhong-de-lian","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/oracle-zhong-gei-chu-zai-star-schema-zhong-de-lian\/","title":{"rendered":"Oracle \u4e2d\u7ed9\u51fa\u5728 STAR SCHEMA \u4e2d\u7684\u4e24\u79cd\u8868\u53ca\u5b83\u4eec\u5206\u522b\u542b\u6709\u7684\u6570\u636e\uff1f"},"content":{"rendered":"

\u5728\u6570\u636e\u4ed3\u5e93\u8bbe\u8ba1\u4e2d\uff0cStar Schema \u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6a21\u5f0f\uff0c\u7528\u4e8e\u5efa\u7acb\u591a\u7ef4\u6570\u636e\u6a21\u578b\u3002Star Schema \u5305\u542b\u4e00\u4e2a\u4e2d\u5fc3\u7684\u4e8b\u5b9e\u8868\uff08Fact Table\uff09\u548c\u591a\u4e2a\u7ef4\u5ea6\u8868\uff08Dimension Tables\uff09\u3002\u4ee5\u4e0b\u662f\u5728\u4e00\u4e2a\u7b80\u5355\u7684 Star Schema \u4e2d\u53ef\u80fd\u5b58\u5728\u7684\u4e24\u4e2a\u8868\u4ee5\u53ca\u5b83\u4eec\u5206\u522b\u542b\u6709\u7684\u6570\u636e\u7684\u793a\u4f8b\uff1a<\/p>\n

    \n
  1. \u4e8b\u5b9e\u8868\uff08Fact Table\uff09\uff1a<\/strong>\n
      \n
    • \u4e8b\u5b9e\u8868\u5305\u542b\u4e86\u4e0e\u4e1a\u52a1\u8fc7\u7a0b\u76f8\u5173\u7684\u4e8b\u5b9e\u6027\u6570\u636e\uff0c\u901a\u5e38\u662f\u6570\u503c\u578b\u6570\u636e\uff0c\u5982\u9500\u552e\u91cf\u3001\u9500\u552e\u989d\u7b49\u3002\u6bcf\u4e00\u884c\u901a\u5e38\u4ee3\u8868\u4e00\u4e2a\u4e1a\u52a1\u4e8b\u4ef6\u7684\u5ea6\u91cf\u3002\u5728 Star Schema \u4e2d\uff0c\u4e8b\u5b9e\u8868\u4e0e\u591a\u4e2a\u7ef4\u5ea6\u8868\u8fdb\u884c\u5173\u8054\u3002<\/li>\n<\/ul>\n

      \u4f8b\u5b50\uff1aSales_Fact \u8868<\/strong><\/p>\n<\/li>\n<\/ol>\n\n\n\n\n\n\n\n
      DateKey<\/th>\nProductKey<\/th>\nCustomerKey<\/th>\nSalesAmount<\/th>\n<\/tr>\n<\/thead>\n
      20230101<\/td>\n101<\/td>\n201<\/td>\n5000<\/td>\n<\/tr>\n
      20230102<\/td>\n102<\/td>\n202<\/td>\n7000<\/td>\n<\/tr>\n
      20230103<\/td>\n103<\/td>\n203<\/td>\n6000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u5728\u4e0a\u8ff0\u4f8b\u5b50\u4e2d\uff0cSales_Fact \u8868\u5305\u542b\u4e86\u9500\u552e\u4e8b\u5b9e\u7684\u6570\u636e\uff0c\u5176\u4e2d DateKey\u3001ProductKey\u3001CustomerKey \u662f\u4e0e\u7ef4\u5ea6\u8868\u5173\u8054\u7684\u5916\u952e\uff0cSalesAmount \u662f\u4e8b\u5b9e\u6570\u636e\u3002<\/p>\n

        \n
      1. \u7ef4\u5ea6\u8868\uff08Dimension Table\uff09\uff1a<\/strong>\n
          \n
        • \u7ef4\u5ea6\u8868\u5305\u542b\u63cf\u8ff0\u4e8b\u5b9e\u8868\u4e2d\u6570\u636e\u7684\u7ef4\u5ea6\u4fe1\u606f\uff0c\u5982\u65e5\u671f\u3001\u4ea7\u54c1\u3001\u5ba2\u6237\u7b49\u3002\u7ef4\u5ea6\u8868\u901a\u5e38\u662f\u5177\u6709\u5c42\u6b21\u7ed3\u6784\u7684\u6570\u636e\uff0c\u7528\u4e8e\u5bf9\u4e8b\u5b9e\u8868\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u548c\u5206\u6790\u3002<\/li>\n<\/ul>\n

          \u4f8b\u5b50\uff1aDate_Dimension \u8868<\/strong><\/p>\n<\/li>\n<\/ol>\n\n\n\n\n\n\n\n
          DateKey<\/th>\nCalendarDate<\/th>\nDayOfWeek<\/th>\nMonth<\/th>\nQuarter<\/th>\nYear<\/th>\n<\/tr>\n<\/thead>\n
          20230101<\/td>\n2023-01-01<\/td>\nMonday<\/td>\nJan<\/td>\nQ1<\/td>\n2023<\/td>\n<\/tr>\n
          20230102<\/td>\n2023-01-02<\/td>\nTuesday<\/td>\nJan<\/td>\nQ1<\/td>\n2023<\/td>\n<\/tr>\n
          20230103<\/td>\n2023-01-03<\/td>\nWednesday<\/td>\nJan<\/td>\nQ1<\/td>\n2023<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \u5728\u4e0a\u8ff0\u4f8b\u5b50\u4e2d\uff0cDate_Dimension \u8868\u5305\u542b\u4e86\u65e5\u671f\u7684\u7ef4\u5ea6\u4fe1\u606f\uff0c\u5176\u4e2d DateKey \u662f\u7ef4\u5ea6\u8868\u7684\u4e3b\u952e\uff0c\u4e0e\u4e8b\u5b9e\u8868\u4e2d\u7684 DateKey \u8fdb\u884c\u5173\u8054\u3002<\/p>\n

          Star Schema \u7684\u8bbe\u8ba1\u4f7f\u5f97\u5728\u6570\u636e\u4ed3\u5e93\u4e2d\u8fdb\u884c\u591a\u7ef4\u5206\u6790\u53d8\u5f97\u66f4\u52a0\u7b80\u5355\uff0c\u901a\u8fc7\u8fde\u63a5\u4e8b\u5b9e\u8868\u548c\u591a\u4e2a\u7ef4\u5ea6\u8868\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u6309\u7167\u4e0d\u540c\u7684\u7ef4\u5ea6\u8fdb\u884c\u805a\u5408\u548c\u5206\u6790\u3002\u4ee5\u4e0a\u793a\u4f8b\u53ea\u662f\u4e00\u79cd\u7b80\u5355\u7684 Star Schema \u8bbe\u8ba1\uff0c\u5b9e\u9645\u7684\u6570\u636e\u4ed3\u5e93\u4e2d\u53ef\u80fd\u5305\u542b\u66f4\u591a\u7684\u7ef4\u5ea6\u548c\u66f4\u590d\u6742\u7684\u5c42\u6b21\u7ed3\u6784\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

          \u5728\u6570\u636e\u4ed3\u5e93\u8bbe\u8ba1\u4e2d\uff0cStar Schema \u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6a21\u5f0f\uff0c\u7528\u4e8e\u5efa\u7acb\u591a\u7ef4\u6570\u636e\u6a21\u578b\u3002Star Schema \u5305\u542b […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[],"class_list":["post-15857","post","type-post","status-publish","format-standard","hentry","category-oracel"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15857","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=15857"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15857\/revisions"}],"predecessor-version":[{"id":15858,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15857\/revisions\/15858"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=15857"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=15857"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=15857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}