{"id":181274,"date":"2024-11-09T15:41:19","date_gmt":"2024-11-09T07:41:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/181274\/"},"modified":"2024-11-09T15:41:20","modified_gmt":"2024-11-09T07:41:20","slug":"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e9%96%93%e9%97%9c%e4%bf%82%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e9%96%93%e9%97%9c%e4%bf%82%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/181274\/","title":{"rendered":"\u6df1\u5165\u7406\u89e3\u6578\u64da\u5eab\u8868\u9593\u95dc\u4fc2\uff08\u6578\u64da\u5eab\u8868\u9593\u95dc\u4fc2\uff09"},"content":{"rendered":"

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CREATE TABLE Users (\n    UserID INT PRIMARY KEY,\n    UserName VARCHAR(100)\n);\n\nCREATE TABLE UserDetails (\n    DetailID INT PRIMARY KEY,\n    UserID INT UNIQUE,\n    Address VARCHAR(255),\n    FOREIGN KEY (UserID) REFERENCES Users(UserID)\n);<\/code><\/pre>\n
\u4e00\u5c0d\u591a\u95dc\u4fc2<\/h2>\n
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CREATE TABLE Customers (\n    CustomerID INT PRIMARY KEY,\n    CustomerName VARCHAR(100)\n);\n\nCREATE TABLE Orders (\n    OrderID INT PRIMARY KEY,\n    CustomerID INT,\n    OrderDate DATE,\n    FOREIGN KEY (CustomerID) REFERENCES Customers(CustomerID)\n);<\/code><\/pre>\n
\u591a\u5c0d\u591a\u95dc\u4fc2<\/h2>\n
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CREATE TABLE Students (\n    StudentID INT PRIMARY KEY,\n    StudentName VARCHAR(100)\n);\n\nCREATE TABLE Courses (\n    CourseID INT PRIMARY KEY,\n    CourseName VARCHAR(100)\n);\n\nCREATE TABLE StudentCourses (\n    StudentID INT,\n    CourseID INT,\n    PRIMARY KEY (StudentID, CourseID),\n    FOREIGN KEY (StudentID) REFERENCES Students(StudentID),\n    FOREIGN KEY (CourseID) REFERENCES Courses(CourseID)\n);<\/code><\/pre>\n
\u7d50\u8ad6<\/h2>\n
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