{"id":162987,"date":"2024-11-04T19:42:19","date_gmt":"2024-11-04T11:42:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162987\/"},"modified":"2024-11-04T19:42:20","modified_gmt":"2024-11-04T11:42:20","slug":"%e6%95%99%e5%b8%ab%e8%a1%a8%e4%b8%8a%e8%aa%b2%e6%99%82%e9%96%93%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e7%ae%a1%e7%90%86%e6%96%b9%e6%a1%88%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e6%95%99%e5%b8%ab%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162987\/","title":{"rendered":"\u6559\u5e2b\u8868\u4e0a\u8ab2\u6642\u9593\u7684\u6578\u64da\u5eab\u7ba1\u7406\u65b9\u6848\uff08\u6578\u64da\u5eab\u6559\u5e2b\u8868\u4e0a\u8ab2\u6642\u9593\uff09"},"content":{"rendered":"<h1 id=\"%e6%95%99%e5%b8%ab%e8%a1%a8%e4%b8%8a%e8%aa%b2%e6%99%82%e9%96%93%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e7%ae%a1%e7%90%86%e6%96%b9%e6%a1%88-yZfkAiqGdd\">\u6559\u5e2b\u8868\u4e0a\u8ab2\u6642\u9593\u7684\u6578\u64da\u5eab\u7ba1\u7406\u65b9\u6848<\/h1>\n<p>\u5728\u73fe\u4ee3\u6559\u80b2\u74b0\u5883\u4e2d\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08DBMS\uff09\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\uff0c\u7279\u5225\u662f\u5728\u6559\u5e2b\u7684\u4e0a\u8ab2\u6642\u9593\u7ba1\u7406\u65b9\u9762\u3002\u96a8\u8457\u6559\u80b2\u6a5f\u69cb\u5c0d\u6578\u64da\u7ba1\u7406\u9700\u6c42\u7684\u589e\u52a0\uff0c\u8a2d\u8a08\u4e00\u500b\u9ad8\u6548\u7684\u6559\u5e2b\u8868\u4e0a\u8ab2\u6642\u9593\u7684\u6578\u64da\u5eab\u7ba1\u7406\u65b9\u6848\u8b8a\u5f97\u5c24\u70ba\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u8a2d\u8a08\u548c\u5be6\u65bd\u9019\u6a23\u7684\u6578\u64da\u5eab\u7ba1\u7406\u65b9\u6848\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 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id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b5%90%e6%a7%8b%e7%a4%ba%e4%be%8b-yZfkAiqGdd\">\u6578\u64da\u5eab\u7d50\u69cb\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u6578\u64da\u5eab\u7d50\u69cb\u793a\u4f8b\uff0c\u5305\u542b\u4e09\u500b\u4e3b\u8981\u8868\u683c\uff1a\u6559\u5e2b\u8868\u3001\u8ab2\u7a0b\u8868\u548c\u4e0a\u8ab2\u6642\u9593\u8868\u3002<\/p>\n<pre><code>\nCREATE TABLE Teachers (\n    TeacherID INT PRIMARY KEY,\n    Name VARCHAR(100),\n    Email VARCHAR(100)\n);\n\nCREATE TABLE Courses (\n    CourseID INT PRIMARY KEY,\n    CourseName VARCHAR(100),\n    Credits INT\n);\n\nCREATE TABLE ClassSchedule (\n    ScheduleID INT PRIMARY KEY,\n    TeacherID INT,\n    CourseID INT,\n    ClassTime DATETIME,\n    FOREIGN KEY (TeacherID) REFERENCES Teachers(TeacherID),\n    FOREIGN KEY (CourseID) REFERENCES Courses(CourseID)\n);\n<\/code><\/pre>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e7%a4%ba%e4%be%8b-yZfkAiqGdd\">\u6578\u64da\u5eab\u64cd\u4f5c\u793a\u4f8b<\/h2>\n<p>\u5728\u8a2d\u8a08\u597d\u6578\u64da\u5eab\u7d50\u69cb\u5f8c\uff0c\u63a5\u4e0b\u4f86\u9700\u8981\u9032\u884c\u6578\u64da\u7684\u63d2\u5165\u3001\u67e5\u8a62\u548c\u66f4\u65b0\u7b49\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684 SQL \u64cd\u4f5c\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-yZfkAiqGdd\">\u63d2\u5165\u6578\u64da<\/h3>\n<pre><code>\nINSERT INTO Teachers (TeacherID, Name, Email) VALUES (1, '\u5f35\u8001\u5e2b', 'zhang@example.com');\nINSERT INTO Courses (CourseID, CourseName, Credits) VALUES (101, '\u6578\u5b78', 3);\nINSERT INTO ClassSchedule (ScheduleID, TeacherID, CourseID, ClassTime) VALUES (1, 1, 101, '2023-09-01 09:00:00');\n<\/code><\/pre>\n<h3 id=\"%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-yZfkAiqGdd\">\u67e5\u8a62\u6578\u64da<\/h3>\n<pre><code>\nSELECT T.Name, C.CourseName, CS.ClassTime\nFROM ClassSchedule CS\nJOIN Teachers T ON CS.TeacherID = T.TeacherID\nJOIN Courses C ON CS.CourseID = C.CourseID;\n<\/code><\/pre>\n<h3 id=\"%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a-yZfkAiqGdd\">\u66f4\u65b0\u6578\u64da<\/h3>\n<pre><code>\nUPDATE ClassSchedule\nSET ClassTime = '2023-09-01 10:00:00'\nWHERE ScheduleID = 1;\n<\/code><\/pre>\n<h2 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