{"id":192276,"date":"2024-11-12T18:24:20","date_gmt":"2024-11-12T10:24:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/192276\/"},"modified":"2024-11-12T18:24:21","modified_gmt":"2024-11-12T10:24:21","slug":"%e5%b0%8f%e7%99%bd%e5%ad%b8%e7%94%9f%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a4%a7%e4%bd%9c%e6%a5%ad%e5%bf%83%e5%be%97%e5%88%86%e4%ba%ab-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a4%a7%e4%bd%9c%e6%a5%ad%e5%bf%83","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/192276\/","title":{"rendered":"\u5c0f\u767d\u5b78\u751f\u7684\u6578\u64da\u5eab\u5927\u4f5c\u696d\u5fc3\u5f97\u5206\u4eab (\u6578\u64da\u5eab\u5927\u4f5c\u696d\u5fc3\u5f97)"},"content":{"rendered":"<h1 id=\"%e5%b0%8f%e7%99%bd%e5%ad%b8%e7%94%9f%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a4%a7%e4%bd%9c%e6%a5%ad%e5%bf%83%e5%be%97%e5%88%86%e4%ba%ab-EOaiMxPoUQ\">\u5c0f\u767d\u5b78\u751f\u7684\u6578\u64da\u5eab\u5927\u4f5c\u696d\u5fc3\u5f97\u5206\u4eab<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u4f4d\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u61c9\u7528\u7121\u8655\u4e0d\u5728\u3002\u5c0d\u65bc\u8a31\u591a\u5c0f\u767d\u5b78\u751f\u4f86\u8aaa\uff0c\u6578\u64da\u5eab\u5927\u4f5c\u696d\u662f\u4e00\u500b\u65e2\u6311\u6230\u53c8\u5145\u6eff\u5b78\u7fd2\u6a5f\u6703\u7684\u904e\u7a0b\u3002\u672c\u6587\u5c07\u5206\u4eab\u4e00\u4e9b\u5728\u9032\u884c\u6578\u64da\u5eab\u5927\u4f5c\u696d\u904e\u7a0b\u4e2d\u7684\u5fc3\u5f97\u8207\u9ad4\u6703\uff0c\u5e0c\u671b\u80fd\u5c0d\u540c\u6a23\u9762\u81e8\u9019\u4e00\u6311\u6230\u7684\u5b78\u751f\u6709\u6240\u5e6b\u52a9\u3002<\/p>\n<h2 id=\"%e4%b8%80%e3%80%81%e9%81%b8%e6%93%87%e5%90%88%e9%81%a9%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e7%ae%a1%e7%90%86%e7%b3%bb%e7%b5%b1-EOaiMxPoUQ\">\u4e00\u3001\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71<\/h2>\n<p>\u5728\u958b\u59cb\u6578\u64da\u5eab\u5927\u4f5c\u696d\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u9078\u64c7\u4e00\u500b\u5408\u9069\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08DBMS\uff09\u3002\u5e38\u898b\u7684\u9078\u64c7\u5305\u62ec MySQL\u3001PostgreSQL \u548c SQLite \u7b49\u3002\u5c0d\u65bc\u5c0f\u767d\u5b78\u751f\u4f86\u8aaa\uff0cMySQL \u662f\u4e00\u500b\u4e0d\u932f\u7684\u9078\u64c7\uff0c\u56e0\u70ba\u5b83\u64c1\u6709\u8c50\u5bcc\u7684\u6587\u6a94\u548c\u793e\u7fa4\u652f\u6301\uff0c\u5b78\u7fd2\u66f2\u7dda\u76f8\u5c0d\u5e73\u7de9\u3002<\/p>\n<h3 id=\"mysql-%e5%ae%89%e8%a3%9d%e8%88%87%e9%85%8d%e7%bd%ae-EOaiMxPoUQ\">MySQL \u5b89\u88dd\u8207\u914d\u7f6e<\/h3>\n<pre><code>sudo apt-get update\nsudo apt-get install mysql-server\n<\/code><\/pre>\n<p>\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0c\u8a18\u5f97\u9032\u884c\u57fa\u672c\u7684\u5b89\u5168\u914d\u7f6e\uff1a<\/p>\n<pre><code>sudo mysql_secure_installation\n<\/code><\/pre>\n<h2 id=\"%e4%ba%8c%e3%80%81%e8%a8%ad%e8%a8%88%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b5%90%e6%a7%8b-EOaiMxPoUQ\">\u4e8c\u3001\u8a2d\u8a08\u6578\u64da\u5eab\u7d50\u69cb<\/h2>\n<p>\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u7d50\u69cb\u6642\uff0c\u9996\u5148\u8981\u660e\u78ba\u6578\u64da\u5eab\u7684\u7528\u9014\u548c\u9700\u6c42\u3002\u53ef\u4ee5\u4f7f\u7528 ER \u5716\uff08\u5be6\u9ad4\u95dc\u4fc2\u5716\uff09\u4f86\u5e6b\u52a9\u8996\u89ba\u5316\u6578\u64da\u5eab\u7684\u7d50\u69cb\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 ER \u5716\u793a\u4f8b\uff1a<\/p>\n<ul>\n<li>\u5b78\u751f\uff08Student\uff09<\/li>\n<li>\u8ab2\u7a0b\uff08Course\uff09<\/li>\n<li>\u9078\u8ab2\uff08Enrollment\uff09<\/li>\n<\/ul>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u5b78\u751f\u548c\u8ab2\u7a0b\u4e4b\u9593\u5b58\u5728\u591a\u5c0d\u591a\u7684\u95dc\u4fc2\uff0c\u56e0\u6b64\u9700\u8981\u4e00\u500b\u4e2d\u4ecb\u8868\u4f86\u7ba1\u7406\u9078\u8ab2\u4fe1\u606f\u3002<\/p>\n<h3 id=\"%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e8%a1%a8%e7%9a%84-sql-%e8%aa%9e%e5%8f%a5-EOaiMxPoUQ\">\u5275\u5efa\u6578\u64da\u8868\u7684 SQL \u8a9e\u53e5<\/h3>\n<pre><code>CREATE TABLE Student (\n    student_id INT PRIMARY KEY,\n    name VARCHAR(100),\n    age INT\n);\n\nCREATE TABLE Course (\n    course_id INT PRIMARY KEY,\n    title VARCHAR(100),\n    credits INT\n);\n\nCREATE TABLE Enrollment (\n    student_id INT,\n    course_id INT,\n    PRIMARY KEY (student_id, course_id),\n    FOREIGN KEY (student_id) REFERENCES Student(student_id),\n    FOREIGN KEY (course_id) REFERENCES Course(course_id)\n);\n<\/code><\/pre>\n<h2 id=\"%e4%b8%89%e3%80%81%e6%95%b8%e6%93%9a%e7%9a%84%e6%8f%92%e5%85%a5%e8%88%87%e6%9f%a5%e8%a9%a2-EOaiMxPoUQ\">\u4e09\u3001\u6578\u64da\u7684\u63d2\u5165\u8207\u67e5\u8a62<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u7d50\u69cb\u8a2d\u8a08\u5b8c\u6210\u5f8c\uff0c\u63a5\u4e0b\u4f86\u5c31\u662f\u63d2\u5165\u6578\u64da\u548c\u9032\u884c\u67e5\u8a62\u3002\u9019\u4e00\u904e\u7a0b\u4e2d\uff0c\u719f\u6089 SQL \u8a9e\u6cd5\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h3 id=\"%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a%e7%9a%84-sql-%e8%aa%9e%e5%8f%a5-EOaiMxPoUQ\">\u63d2\u5165\u6578\u64da\u7684 SQL \u8a9e\u53e5<\/h3>\n<pre><code>INSERT INTO Student (student_id, name, age) VALUES (1, '\u5c0f\u660e', 20);\nINSERT INTO Course (course_id, title, credits) VALUES (101, '\u6578\u64da\u5eab\u539f\u7406', 3);\nINSERT INTO Enrollment (student_id, course_id) VALUES (1, 101);\n<\/code><\/pre>\n<h3 id=\"%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e7%9a%84-sql-%e8%aa%9e%e5%8f%a5-EOaiMxPoUQ\">\u67e5\u8a62\u6578\u64da\u7684 SQL \u8a9e\u53e5<\/h3>\n<pre><code>SELECT s.name, c.title \nFROM Student s \nJOIN Enrollment e ON s.student_id = e.student_id \nJOIN Course c ON e.course_id = c.course_id;\n<\/code><\/pre>\n<h2 id=\"%e5%9b%9b%e3%80%81%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%84%aa%e5%8c%96%e8%88%87%e7%b6%ad%e8%ad%b7-EOaiMxPoUQ\">\u56db\u3001\u6578\u64da\u5eab\u7684\u512a\u5316\u8207\u7dad\u8b77<\/h2>\n<p>\u5728\u5b8c\u6210\u6578\u64da\u5eab\u7684\u57fa\u672c\u64cd\u4f5c\u5f8c\uff0c\u512a\u5316\u548c\u7dad\u8b77\u4e5f\u662f\u4e0d\u53ef\u5ffd\u8996\u7684\u90e8\u5206\u3002\u5b9a\u671f\u6aa2\u67e5\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u7d22\u5f15\u7684\u6dfb\u52a0\u548c\u67e5\u8a62\u7684\u512a\u5316\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6548\u7387\u3002<\/p>\n<h3 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84%e5%84%aa%e5%8c%96%e6%96%b9%e6%b3%95-EOaiMxPoUQ\">\u5e38\u898b\u7684\u512a\u5316\u65b9\u6cd5<\/h3>\n<ul>\n<li>\u4f7f\u7528\u7d22\u5f15\u52a0\u901f\u67e5\u8a62<\/li>\n<li>\u5b9a\u671f\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da<\/li>\n<li>\u76e3\u63a7\u6578\u64da\u5eab\u6027\u80fd\u6307\u6a19<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-EOaiMxPoUQ\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u9019\u6b21\u6578\u64da\u5eab\u5927\u4f5c\u696d\uff0c\u6211\u6df1\u523b\u9ad4\u6703\u5230\u6578\u64da\u5eab\u8a2d\u8a08\u8207\u7ba1\u7406\u7684\u91cd\u8981\u6027\u3002\u5f9e\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5230\u8a2d\u8a08\u6578\u64da\u7d50\u69cb\uff0c\u518d\u5230\u6578\u64da\u7684\u63d2\u5165\u8207\u67e5\u8a62\uff0c\u6bcf\u4e00\u6b65\u90fd\u9700\u8981\u7d30\u5fc3\u548c\u8010\u5fc3\u3002\u5e0c\u671b\u6211\u7684\u5206\u4eab\u80fd\u5e6b\u52a9\u5230\u5176\u4ed6\u5c0f\u767d\u5b78\u751f\uff0c\u8b93\u5927\u5bb6\u5728\u6578\u64da\u5eab\u7684\u5b78\u7fd2\u65c5\u7a0b\u4e2d\u66f4\u52a0\u9806\u5229\u3002<\/p>\n<p>\u5982\u679c\u4f60\u5c0d\u65bc\u6578\u64da\u5eab\u7684\u904b\u884c\u74b0\u5883\u6709\u9032\u4e00\u6b65\u7684\u9700\u6c42\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u642d\u5efa\u4f60\u7684\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u4eab\u53d7\u7a69\u5b9a\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u914d\u7f6e\u9078\u64c7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5206\u4eab\u5c0f\u767d\u5b78\u751f\u5728\u6578\u64da\u5eab\u5927\u4f5c\u696d\u4e2d\u7684\u5b78\u7fd2\u9ad4\u9a57\u8207\u5fc3\u5f97\uff0c\u63a2\u7d22\u6311\u6230\u8207\u6536\u7a6b\uff0c\u52a9\u4f60\u66f4\u597d\u7406\u89e3\u6578\u64da\u5eab\u7684\u61c9\u7528\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-192276","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/192276","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=192276"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/192276\/revisions"}],"predecessor-version":[{"id":192277,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/192276\/revisions\/192277"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=192276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=192276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=192276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}