{"id":195231,"date":"2024-11-13T13:18:24","date_gmt":"2024-11-13T05:18:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/195231\/"},"modified":"2024-11-13T13:18:25","modified_gmt":"2024-11-13T05:18:25","slug":"%e5%84%aa%e5%8c%96%e4%bd%a0%e7%9a%84%e5%be%8c%e5%8f%b0%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9e%b6%e6%a7%8b%e8%a8%ad%e8%a8%88-%e5%be%8c%e5%8f%b0%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9e%b6%e6%a7%8b%e8%a8%ad%e8%a8%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/195231\/","title":{"rendered":"\u512a\u5316\u4f60\u7684\u5f8c\u53f0\u6578\u64da\u5eab\u67b6\u69cb\u8a2d\u8a08 (\u5f8c\u53f0\u6578\u64da\u5eab\u67b6\u69cb\u8a2d\u8a08)"},"content":{"rendered":"<h1 id=\"%e5%84%aa%e5%8c%96%e4%bd%a0%e7%9a%84%e5%be%8c%e5%8f%b0%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9e%b6%e6%a7%8b%e8%a8%ad%e8%a8%88-riJLfkBxcX\">\u512a\u5316\u4f60\u7684\u5f8c\u53f0\u6578\u64da\u5eab\u67b6\u69cb\u8a2d\u8a08<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u5b57\u5316\u7684\u6642\u4ee3\uff0c\u5f8c\u53f0\u6578\u64da\u5eab\u67b6\u69cb\u8a2d\u8a08\u5c0d\u65bc\u4efb\u4f55\u4e00\u500b\u61c9\u7528\u7a0b\u5e8f\u6216\u7db2\u7ad9\u7684\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u826f\u597d\u7684\u6578\u64da\u5eab\u8a2d\u8a08\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6578\u64da\u7684\u5b58\u53d6\u6548\u7387\uff0c\u9084\u80fd\u589e\u5f37\u7cfb\u7d71\u7684\u53ef\u64f4\u5c55\u6027\u548c\u7dad\u8b77\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u512a\u5316\u5f8c\u53f0\u6578\u64da\u5eab\u67b6\u69cb\u8a2d\u8a08\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u5efa\u8b70\u548c\u7bc4\u4f8b\u3002<\/p>\n<h2 id=\"%e7%90%86%e8%a7%a3%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9e%b6%e6%a7%8b%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-riJLfkBxcX\">\u7406\u89e3\u6578\u64da\u5eab\u67b6\u69cb\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u6578\u64da\u5eab\u67b6\u69cb\u662f\u6307\u6578\u64da\u5eab\u4e2d\u6578\u64da\u7684\u7d44\u7e54\u65b9\u5f0f\uff0c\u5305\u62ec\u6578\u64da\u8868\u3001\u5b57\u6bb5\u3001\u95dc\u806f\u53ca\u7d04\u675f\u7b49\u3002\u826f\u597d\u7684\u6578\u64da\u5eab\u67b6\u69cb\u8a2d\u8a08\u61c9\u8a72\u8003\u616e\u5230\u6578\u64da\u7684\u5b8c\u6574\u6027\u3001\u4e00\u81f4\u6027\u548c\u53ef\u7528\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u6982\u5ff5\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u8868<\/strong>\uff1a\u6578\u64da\u8868\u662f\u6578\u64da\u5eab\u7684\u57fa\u672c\u7d44\u7e54\u55ae\u4f4d\uff0c\u6bcf\u500b\u8868\u7531\u591a\u500b\u5b57\u6bb5\u7d44\u6210\u3002<\/li>\n<li><strong>\u5b57\u6bb5<\/strong>\uff1a\u5b57\u6bb5\u662f\u6578\u64da\u8868\u4e2d\u7684\u4e00\u5217\uff0c\u5b9a\u7fa9\u4e86\u6578\u64da\u7684\u985e\u578b\u548c\u7279\u6027\u3002<\/li>\n<li><strong>\u95dc\u806f<\/strong>\uff1a\u95dc\u806f\u662f\u4e0d\u540c\u6578\u64da\u8868\u4e4b\u9593\u7684\u9023\u63a5\uff0c\u901a\u5e38\u901a\u904e\u5916\u9375\u4f86\u5be6\u73fe\u3002<\/li>\n<li><strong>\u7d04\u675f<\/strong>\uff1a\u7d04\u675f\u662f\u5c0d\u6578\u64da\u7684\u9650\u5236\u689d\u4ef6\uff0c\u5982\u4e3b\u9375\u7d04\u675f\u3001\u552f\u4e00\u7d04\u675f\u7b49\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9e%b6%e6%a7%8b%e7%9a%84%e7%ad%96%e7%95%a5-riJLfkBxcX\">\u512a\u5316\u6578\u64da\u5eab\u67b6\u69cb\u7684\u7b56\u7565<\/h2>\n<h3 id=\"1-%e6%ad%a3%e8%a6%8f%e5%8c%96%e6%95%b8%e6%93%9a-riJLfkBxcX\">1. \u6b63\u898f\u5316\u6578\u64da<\/h3>\n<p>\u6b63\u898f\u5316\u662f\u6307\u5c07\u6578\u64da\u5206\u89e3\u6210\u591a\u500b\u76f8\u95dc\u7684\u8868\uff0c\u4ee5\u6d88\u9664\u6578\u64da\u5197\u9918\u548c\u4e0d\u4e00\u81f4\u6027\u3002\u6b63\u898f\u5316\u901a\u5e38\u5206\u70ba\u5e7e\u500b\u968e\u6bb5\uff0c\u7a31\u70ba\u6b63\u898f\u5f62\u5f0f\uff08Normal Forms\uff09\u3002\u4f8b\u5982\uff0c\u7b2c\u4e00\u6b63\u898f\u5f62\u5f0f\uff081NF\uff09\u8981\u6c42\u6bcf\u500b\u5b57\u6bb5\u90fd\u61c9\u8a72\u662f\u539f\u5b50\u6027\u7684\uff0c\u7b2c\u4e8c\u6b63\u898f\u5f62\u5f0f\uff082NF\uff09\u8981\u6c42\u6bcf\u500b\u975e\u4e3b\u9375\u5b57\u6bb5\u90fd\u61c9\u8a72\u5b8c\u5168\u4f9d\u8cf4\u65bc\u4e3b\u9375\u3002<\/p>\n<pre><code>CREATE TABLE Customers (\n    CustomerID INT PRIMARY KEY,\n    CustomerName VARCHAR(100),\n    ContactName VARCHAR(100),\n    Country VARCHAR(50)\n);\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e7%b4%a2%e5%bc%95-riJLfkBxcX\">2. \u4f7f\u7528\u7d22\u5f15<\/h3>\n<p>\u7d22\u5f15\u662f\u63d0\u9ad8\u6578\u64da\u6aa2\u7d22\u901f\u5ea6\u7684\u91cd\u8981\u5de5\u5177\u3002\u901a\u904e\u5728\u8868\u7684\u67d0\u4e9b\u5b57\u6bb5\u4e0a\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u7136\u800c\uff0c\u904e\u591a\u7684\u7d22\u5f15\u6703\u5f71\u97ff\u6578\u64da\u7684\u5beb\u5165\u6027\u80fd\uff0c\u56e0\u6b64\u9700\u8981\u6839\u64da\u5be6\u969b\u9700\u6c42\u9032\u884c\u5e73\u8861\u3002<\/p>\n<pre><code>CREATE INDEX idx_CustomerName ON Customers (CustomerName);\n<\/code><\/pre>\n<h3 id=\"3-%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5-riJLfkBxcX\">3. \u512a\u5316\u67e5\u8a62\u8a9e\u53e5<\/h3>\n<p>\u67e5\u8a62\u8a9e\u53e5\u7684\u6548\u7387\u76f4\u63a5\u5f71\u97ff\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u4f7f\u7528\u9069\u7576\u7684\u67e5\u8a62\u8a9e\u53e5\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u8ca0\u64d4\u3002\u4f8b\u5982\uff0c\u907f\u514d\u4f7f\u7528SELECT *\uff0c\u800c\u662f\u660e\u78ba\u6307\u5b9a\u9700\u8981\u7684\u5b57\u6bb5\u3002<\/p>\n<pre><code>SELECT CustomerName, Country FROM Customers WHERE Country = 'USA';\n<\/code><\/pre>\n<h3 id=\"4-%e8%80%83%e6%85%ae%e5%88%86%e5%8d%80%e5%92%8c%e5%88%86%e7%89%87-riJLfkBxcX\">4. \u8003\u616e\u5206\u5340\u548c\u5206\u7247<\/h3>\n<p>\u5c0d\u65bc\u5927\u578b\u6578\u64da\u5eab\uff0c\u5206\u5340\u548c\u5206\u7247\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u6027\u80fd\u3002\u5206\u5340\u662f\u5c07\u8868\u4e2d\u7684\u6578\u64da\u6839\u64da\u67d0\u4e9b\u689d\u4ef6\u5206\u6210\u591a\u500b\u90e8\u5206\uff0c\u800c\u5206\u7247\u5247\u662f\u5c07\u6578\u64da\u5206\u6563\u5230\u591a\u500b\u4f3a\u670d\u5668\u4e0a\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u55ae\u500b\u4f3a\u670d\u5668\u7684\u8ca0\u64d4\uff0c\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-riJLfkBxcX\">\u7d50\u8ad6<\/h2>\n<p>\u512a\u5316\u5f8c\u53f0\u6578\u64da\u5eab\u67b6\u69cb\u8a2d\u8a08\u662f\u4e00\u500b\u6301\u7e8c\u7684\u904e\u7a0b\uff0c\u9700\u8981\u6839\u64da\u5be6\u969b\u9700\u6c42\u4e0d\u65b7\u8abf\u6574\u548c\u6539\u9032\u3002\u901a\u904e\u6b63\u898f\u5316\u6578\u64da\u3001\u4f7f\u7528\u7d22\u5f15\u3001\u512a\u5316\u67e5\u8a62\u8a9e\u53e5\u4ee5\u53ca\u8003\u616e\u5206\u5340\u548c\u5206\u7247\u7b49\u7b56\u7565\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u3002\u5c0d\u65bc\u5e0c\u671b\u5728\u9999\u6e2f\u5e02\u5834\u4e0a\u7372\u5f97\u7af6\u722d\u512a\u52e2\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u7121\u8ad6\u662f\u9700\u8981\u9ad8\u6027\u80fd\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f\u9748\u6d3b\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u4f3a\u670d\u5668<\/a>\uff0c\u90fd\u80fd\u70ba\u4f60\u7684\u696d\u52d9\u63d0\u4f9b\u5f37\u6709\u529b\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u512a\u5316\u4f60\u7684\u5f8c\u53f0\u6578\u64da\u5eab\u67b6\u69cb\u8a2d\u8a08\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6548\u7387\uff0c\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u8207\u53ef\u64f4\u5c55\u6027\uff0c\u52a9\u529b\u696d\u52d9\u589e\u9577\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-195231","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195231","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=195231"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195231\/revisions"}],"predecessor-version":[{"id":195232,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195231\/revisions\/195232"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=195231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=195231"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=195231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}