{"id":179412,"date":"2024-11-09T01:36:22","date_gmt":"2024-11-08T17:36:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179412\/"},"modified":"2024-11-09T01:36:23","modified_gmt":"2024-11-08T17:36:23","slug":"%e5%a6%82%e4%bd%95%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9a%e5%bb%ba%e7%ab%8b%e7%aa%84%e8%a1%a8%e7%9a%84%e6%8a%80%e5%b7%a7-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%bb%ba%e7%aa%84%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179412\/","title":{"rendered":"\u5982\u4f55\u512a\u5316\u6578\u64da\u5eab\uff1a\u5efa\u7acb\u7a84\u8868\u7684\u6280\u5de7 (\u6578\u64da\u5eab\u5efa\u7a84\u8868)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9a%e5%bb%ba%e7%ab%8b%e7%aa%84%e8%a1%a8%e7%9a%84%e6%8a%80%e5%b7%a7-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%bb%ba%e7%aa%84%e8%a1%a8-kTbaAawfrt\">\u5982\u4f55\u512a\u5316\u6578\u64da\u5eab\uff1a\u5efa\u7acb\u7a84\u8868\u7684\u6280\u5de7 (\u6578\u64da\u5eab\u5efa\u7a84\u8868)<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u8a2d\u8a08\u4e2d\uff0c\u8868\u7684\u7d50\u69cb\u5c0d\u65bc\u6027\u80fd\u548c\u53ef\u7dad\u8b77\u6027\u81f3\u95dc\u91cd\u8981\u3002\u7a84\u8868\uff08Narrow Table\uff09\u662f\u6307\u90a3\u4e9b\u5217\u6578\u8f03\u5c11\u7684\u8868\uff0c\u9019\u7a2e\u8a2d\u8a08\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u548c\u6578\u64da\u8655\u7406\u6548\u7387\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u512a\u5316\u6578\u64da\u5eab\uff0c\u4e26\u63d0\u4f9b\u5efa\u7acb\u7a84\u8868\u7684\u6280\u5de7\u3002<\/p>\n<h2 id=\"%e7%aa%84%e8%a1%a8%e7%9a%84%e5%84%aa%e5%8b%a2-kTbaAawfrt\">\u7a84\u8868\u7684\u512a\u52e2<\/h2>\n<p>\u7a84\u8868\u7684\u4e3b\u8981\u512a\u52e2\u5728\u65bc\u5176\u80fd\u5920\u6e1b\u5c11\u6578\u64da\u7684\u5197\u9918\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u548c\u964d\u4f4e\u5b58\u5132\u6210\u672c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5177\u9ad4\u7684\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff1a<\/strong>\u7a84\u8868\u901a\u5e38\u5305\u542b\u8f03\u5c11\u7684\u5217\uff0c\u9019\u610f\u5473\u8457\u5728\u57f7\u884c\u67e5\u8a62\u6642\uff0c\u6578\u64da\u5eab\u9700\u8981\u8655\u7406\u7684\u6578\u64da\u91cf\u8f03\u5c11\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li><strong>\u6e1b\u5c11\u5b58\u5132\u7a7a\u9593\uff1a<\/strong>\u7531\u65bc\u5217\u6578\u8f03\u5c11\uff0c\u7a84\u8868\u6240\u9700\u7684\u5b58\u5132\u7a7a\u9593\u4e5f\u76f8\u5c0d\u8f03\u5c0f\uff0c\u9019\u5c0d\u65bc\u5927\u578b\u6578\u64da\u5eab\u5c24\u70ba\u91cd\u8981\u3002<\/li>\n<li><strong>\u7c21\u5316\u7dad\u8b77\uff1a<\/strong>\u7a84\u8868\u7684\u7d50\u69cb\u7c21\u55ae\uff0c\u4fbf\u65bc\u7dad\u8b77\u548c\u7ba1\u7406\uff0c\u7279\u5225\u662f\u5728\u6578\u64da\u66f4\u65b0\u548c\u522a\u9664\u64cd\u4f5c\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%bb%ba%e7%ab%8b%e7%aa%84%e8%a1%a8%e7%9a%84%e6%8a%80%e5%b7%a7-kTbaAawfrt\">\u5efa\u7acb\u7a84\u8868\u7684\u6280\u5de7<\/h2>\n<h3 id=\"1-%e7%a2%ba%e5%ae%9a%e5%bf%85%e8%a6%81%e7%9a%84%e5%88%97-kTbaAawfrt\">1. \u78ba\u5b9a\u5fc5\u8981\u7684\u5217<\/h3>\n<p>\u5728\u8a2d\u8a08\u8868\u7d50\u69cb\u6642\uff0c\u9996\u5148\u9700\u8981\u78ba\u5b9a\u54ea\u4e9b\u5217\u662f\u5fc5\u9700\u7684\u3002\u9019\u53ef\u4ee5\u901a\u904e\u5206\u6790\u696d\u52d9\u9700\u6c42\u548c\u67e5\u8a62\u6a21\u5f0f\u4f86\u5be6\u73fe\u3002\u907f\u514d\u5c07\u4e0d\u5fc5\u8981\u7684\u5217\u6dfb\u52a0\u5230\u8868\u4e2d\uff0c\u9019\u6a23\u53ef\u4ee5\u4fdd\u6301\u8868\u7684\u7c21\u6f54\u6027\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e6%ad%a3%e8%a6%8f%e5%8c%96-kTbaAawfrt\">2. \u4f7f\u7528\u6b63\u898f\u5316<\/h3>\n<p>\u6b63\u898f\u5316\u662f\u4e00\u7a2e\u6578\u64da\u5eab\u8a2d\u8a08\u6280\u8853\uff0c\u65e8\u5728\u6d88\u9664\u6578\u64da\u5197\u9918\u3002\u901a\u904e\u5c07\u6578\u64da\u5206\u6563\u5230\u591a\u500b\u8868\u4e2d\uff0c\u53ef\u4ee5\u6e1b\u5c11\u6bcf\u500b\u8868\u7684\u5217\u6578\u3002\u4f8b\u5982\uff0c\u5c07\u7528\u6236\u4fe1\u606f\u548c\u8a02\u55ae\u4fe1\u606f\u5206\u958b\u5b58\u5132\uff0c\u53ef\u4ee5\u5275\u5efa\u5169\u500b\u7a84\u8868\uff0c\u800c\u4e0d\u662f\u4e00\u500b\u5305\u542b\u6240\u6709\u4fe1\u606f\u7684\u5bec\u8868\u3002<\/p>\n<pre><code>-- \u7528\u6236\u8868\nCREATE TABLE Users (\n    UserID INT PRIMARY KEY,\n    UserName VARCHAR(50)\n);\n\n-- \u8a02\u55ae\u8868\nCREATE TABLE Orders (\n    OrderID INT PRIMARY KEY,\n    UserID INT,\n    OrderDate DATETIME,\n    FOREIGN KEY (UserID) REFERENCES Users(UserID)\n);\n<\/code><\/pre>\n<h3 id=\"3-%e8%80%83%e6%85%ae%e4%bd%bf%e7%94%a8%e8%a6%96%e5%9c%96-kTbaAawfrt\">3. \u8003\u616e\u4f7f\u7528\u8996\u5716<\/h3>\n<p>\u8996\u5716\u53ef\u4ee5\u7528\u4f86\u7c21\u5316\u67e5\u8a62\uff0c\u4e26\u4e14\u53ef\u4ee5\u5728\u4e0d\u6539\u8b8a\u57fa\u790e\u8868\u7d50\u69cb\u7684\u60c5\u6cc1\u4e0b\u63d0\u4f9b\u6240\u9700\u7684\u6578\u64da\u3002\u901a\u904e\u5275\u5efa\u8996\u5716\uff0c\u53ef\u4ee5\u5c07\u591a\u500b\u7a84\u8868\u7684\u6578\u64da\u6574\u5408\u5728\u4e00\u8d77\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u7684\u9748\u6d3b\u6027\u3002<\/p>\n<pre><code>CREATE VIEW UserOrders AS\nSELECT Users.UserID, Users.UserName, Orders.OrderID, Orders.OrderDate\nFROM Users\nJOIN Orders ON Users.UserID = Orders.UserID;\n<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e7%b4%a2%e5%bc%95-kTbaAawfrt\">4. \u4f7f\u7528\u7d22\u5f15<\/h3>\n<p>\u96d6\u7136\u7a84\u8868\u672c\u8eab\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\uff0c\u4f46\u9069\u7576\u7684\u7d22\u5f15\u8a2d\u8a08\u4e5f\u81f3\u95dc\u91cd\u8981\u3002\u70ba\u5e38\u7528\u7684\u67e5\u8a62\u5217\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u9032\u4e00\u6b65\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u904e\u591a\u7684\u7d22\u5f15\u6703\u5f71\u97ff\u5beb\u5165\u6027\u80fd\uff0c\u56e0\u6b64\u61c9\u6839\u64da\u5be6\u969b\u9700\u6c42\u9032\u884c\u5e73\u8861\u3002<\/p>\n<h3 id=\"5-%e5%ae%9a%e6%9c%9f%e5%af%a9%e6%9f%a5%e5%92%8c%e8%aa%bf%e6%95%b4-kTbaAawfrt\">5. \u5b9a\u671f\u5be9\u67e5\u548c\u8abf\u6574<\/h3>\n<p>\u6578\u64da\u5eab\u8a2d\u8a08\u4e0d\u662f\u4e00\u6210\u4e0d\u8b8a\u7684\u3002\u96a8\u8457\u696d\u52d9\u9700\u6c42\u7684\u8b8a\u5316\uff0c\u5b9a\u671f\u5be9\u67e5\u548c\u8abf\u6574\u8868\u7d50\u69cb\u662f\u5fc5\u8981\u7684\u3002\u9019\u5305\u62ec\u6aa2\u67e5\u8868\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u78ba\u5b9a\u662f\u5426\u9700\u8981\u9032\u4e00\u6b65\u7684\u6b63\u898f\u5316\u6216\u5408\u4f75\u8868\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-kTbaAawfrt\">\u7e3d\u7d50<\/h2>\n<p>\u5efa\u7acb\u7a84\u8868\u662f\u4e00\u7a2e\u6709\u6548\u7684\u6578\u64da\u5eab\u512a\u5316\u7b56\u7565\uff0c\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3001\u6e1b\u5c11\u5b58\u5132\u7a7a\u9593\u4e26\u7c21\u5316\u7dad\u8b77\u3002\u901a\u904e\u78ba\u5b9a\u5fc5\u8981\u7684\u5217\u3001\u4f7f\u7528\u6b63\u898f\u5316\u3001\u8003\u616e\u8996\u5716\u3001\u4f7f\u7528\u7d22\u5f15\u4ee5\u53ca\u5b9a\u671f\u5be9\u67e5\u548c\u8abf\u6574\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u8a2d\u8a08\u51fa\u9ad8\u6548\u7684\u6578\u64da\u5eab\u7d50\u69cb\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u904b\u884c\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u512a\u5316\u6578\u64da\u5eab\uff0c\u638c\u63e1\u5efa\u7acb\u7a84\u8868\u7684\u6280\u5de7\uff0c\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\uff0c\u6e1b\u5c11\u5b58\u5132\u7a7a\u9593\uff0c\u63d0\u5347\u6574\u9ad4\u6027\u80fd\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-179412","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179412","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=179412"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179412\/revisions"}],"predecessor-version":[{"id":179413,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179412\/revisions\/179413"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179412"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179412"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179412"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}