{"id":15457,"date":"2023-12-04T20:15:34","date_gmt":"2023-12-04T12:15:34","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=15457"},"modified":"2023-12-04T20:16:27","modified_gmt":"2023-12-04T12:16:27","slug":"oracle-zhong-gei-chu-zai-star-schema-zhong-de-lia","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/oracle-zhong-gei-chu-zai-star-schema-zhong-de-lia\/","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":"<p>Star Schema \u662f\u4e00\u79cd\u5e38\u7528\u7684\u6570\u636e\u6a21\u578b\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u4e2d\u5fc3\u7684\u4e8b\u5b9e\u8868\uff08Fact Table\uff09\u548c\u591a\u4e2a\u4e0e\u4e4b\u5173\u8054\u7684\u7ef4\u5ea6\u8868\uff08Dimension Tables\uff09\u3002\u5728 Star Schema \u4e2d\uff0c\u4e00\u822c\u4f1a\u6709\u4e00\u4e2a\u6216\u591a\u4e2a\u4e8b\u5b9e\u8868\u4e0e\u591a\u4e2a\u7ef4\u5ea6\u8868\u76f8\u8fde\uff0c\u6784\u6210\u661f\u578b\u7684\u7ed3\u6784\u3002<\/p>\n<p>\u4e3e\u4f8b\u6765\u8bf4\uff0c\u5047\u8bbe\u6709\u4e00\u4e2a\u9500\u552e\u6570\u636e\u7684 Star Schema\uff0c\u53ef\u4ee5\u6709\u4ee5\u4e0b\u4e24\u79cd\u8868\uff1a<\/p>\n<ol>\n<li><strong>\u4e8b\u5b9e\u8868\uff08Fact Table\uff09<\/strong>\uff1a\n<ul>\n<li>\u53ef\u80fd\u662f\u4e00\u4e2a\u5305\u542b\u9500\u552e\u8ba2\u5355\u3001\u9500\u552e\u91d1\u989d\u3001\u65e5\u671f\u952e\u548c\u4ea7\u54c1\u952e\u7684\u8868\u3002<\/li>\n<li>\u6570\u636e\u53ef\u80fd\u7c7b\u4f3c\u4e8e\uff1a<br \/>\n&#8220;`<br \/>\nOrder_ID | Product_ID | Date_Key | Amount_Sold&lt;\/li&gt;<br \/>\n&lt;\/ul&gt;<\/p>\n<p>&lt;hr \/&gt;<\/p>\n<p>101      | 201        | 20200101 | 500<br \/>\n 102      | 203        | 20200102 | 700<br \/>\n &#8230;<br \/>\n &#8220;`<\/p>\n<\/li>\n<li>\n<p><strong>\u7ef4\u5ea6\u8868\uff08Dimension Table\uff09<\/strong>\uff1a<\/p>\n<ul>\n<li>\u53ef\u80fd\u5305\u542b\u5173\u4e8e\u4ea7\u54c1\u3001\u65e5\u671f\u7b49\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u901a\u5e38\u5305\u62ec\u5404\u79cd\u7ef4\u5ea6\u7684\u5c5e\u6027\u3002<\/li>\n<li>\u4ea7\u54c1\u7ef4\u5ea6\u8868\u6570\u636e\u53ef\u80fd\u7c7b\u4f3c\u4e8e\uff1a<br \/>\n&#8220;`<br \/>\nProduct_ID | Product_Name | Category | &#8230;<\/li>\n<\/ul>\n<hr \/>\n<p>201        | Product_A    | Cat_1    | &#8230;<br \/>\n 202        | Product_B    | Cat_2    | &#8230;<br \/>\n &#8230;<\/p>\n<\/li>\n<\/ol>\n<ul>\n<li>\u65e5\u671f\u7ef4\u5ea6\u8868\u6570\u636e\u53ef\u80fd\u7c7b\u4f3c\u4e8e\uff1a<br \/>\n <code>Date_Key | Date       | Month | Year | ...<br \/>\n -----------------------------------------<br \/>\n 20200101 | 2020-01-01 | Jan   | 2020 | ...<br \/>\n 20200102 | 2020-01-02 | Jan   | 2020 | ...<br \/>\n ...<\/code><\/li>\n<\/ul>\n<p>\u4e8b\u5b9e\u8868\u4e2d\u7684\u6570\u636e\u901a\u5e38\u5305\u542b\u4e0e\u4e1a\u52a1\u76f8\u5173\u7684\u5ea6\u91cf\u503c\uff08\u5982\u9500\u552e\u989d\u3001\u6570\u91cf\u7b49\uff09\uff0c\u800c\u7ef4\u5ea6\u8868\u5219\u5305\u542b\u63cf\u8ff0\u5ea6\u91cf\u7684\u4e0a\u4e0b\u6587\u4fe1\u606f\uff08\u5982\u4ea7\u54c1\u3001\u65f6\u95f4\u3001\u5730\u70b9\u7b49\uff09\u3002\u8fd9\u79cd\u7ed3\u6784\u53ef\u4ee5\u652f\u6301\u590d\u6742\u7684\u6570\u636e\u5206\u6790\u548c\u67e5\u8be2\uff0c\u901a\u8fc7\u8fde\u63a5\u4e8b\u5b9e\u8868\u548c\u7ef4\u5ea6\u8868\uff0c\u53ef\u4ee5\u5b9e\u73b0\u591a\u7ef4\u5ea6\u7684\u5206\u6790\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Star Schema \u662f\u4e00\u79cd\u5e38\u7528\u7684\u6570\u636e\u6a21\u578b\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u4e2d\u5fc3\u7684\u4e8b\u5b9e\u8868\uff08Fact Table\uff09\u548c\u591a\u4e2a\u4e0e\u4e4b\u5173\u8054\u7684 [&hellip;]<\/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-15457","post","type-post","status-publish","format-standard","hentry","category-oracel"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15457","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=15457"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15457\/revisions"}],"predecessor-version":[{"id":15458,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15457\/revisions\/15458"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=15457"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=15457"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=15457"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}