{"id":187836,"date":"2024-11-11T17:35:23","date_gmt":"2024-11-11T09:35:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/187836\/"},"modified":"2024-11-11T17:35:24","modified_gmt":"2024-11-11T09:35:24","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e4%b8%80%e5%b0%8d%e5%a4%9a%e9%97%9c%e4%bf%82%e7%9a%84%e5%af%a6%e7%8f%be%e6%96%b9%e6%b3%95-%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e9%96%93%e9%97%9c%e4%bf%82","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/187836\/","title":{"rendered":"\u6578\u64da\u5eab\u4e2d\u4e00\u5c0d\u591a\u95dc\u4fc2\u7684\u5be6\u73fe\u65b9\u6cd5 (\u6578\u64da\u5eab\u8868\u9593\u95dc\u4fc2 \u4e00\u5c0d\u591a)"},"content":{"rendered":"

\u6578\u64da\u5eab\u4e2d\u4e00\u5c0d\u591a\u95dc\u4fc2\u7684\u5be6\u73fe\u65b9\u6cd5 (\u6578\u64da\u5eab\u8868\u9593\u95dc\u4fc2 \u4e00\u5c0d\u591a)<\/h1>\n

\u5728\u6578\u64da\u5eab\u8a2d\u8a08\u4e2d\uff0c\u7406\u89e3\u548c\u5be6\u73fe\u4e00\u5c0d\u591a\u95dc\u4fc2\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u9019\u7a2e\u95dc\u4fc2\u901a\u5e38\u7528\u65bc\u63cf\u8ff0\u4e00\u500b\u5be6\u9ad4\u8207\u591a\u500b\u76f8\u95dc\u5be6\u9ad4\u4e4b\u9593\u7684\u806f\u7e6b\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u5c0d\u591a\u95dc\u4fc2\u7684\u6982\u5ff5\u3001\u5be6\u73fe\u65b9\u6cd5\u4ee5\u53ca\u76f8\u95dc\u7684\u793a\u4f8b\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u9019\u4e00\u91cd\u8981\u7684\u6578\u64da\u5eab\u8a2d\u8a08\u539f\u5247\u3002<\/p>\n

\u4e00\u5c0d\u591a\u95dc\u4fc2\u7684\u5b9a\u7fa9<\/h2>\n

\u4e00\u5c0d\u591a\u95dc\u4fc2\u662f\u6307\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u4e00\u500b\u8a18\u9304\u53ef\u4ee5\u8207\u591a\u500b\u8a18\u9304\u76f8\u95dc\u806f\uff0c\u800c\u9019\u4e9b\u591a\u500b\u8a18\u9304\u53c8\u53ea\u80fd\u8207\u4e00\u500b\u8a18\u9304\u76f8\u95dc\u806f\u3002\u4f8b\u5982\uff0c\u5728\u4e00\u500b\u5b78\u6821\u6578\u64da\u5eab\u4e2d\uff0c\u4e00\u4f4d\u6559\u5e2b\u53ef\u4ee5\u6559\u6388\u591a\u9580\u8ab2\u7a0b\uff0c\u4f46\u6bcf\u9580\u8ab2\u7a0b\u53ea\u80fd\u7531\u4e00\u4f4d\u6559\u5e2b\u6559\u6388\u3002\u9019\u7a2e\u95dc\u4fc2\u5728\u6578\u64da\u5eab\u8a2d\u8a08\u4e2d\u975e\u5e38\u5e38\u898b\uff0c\u5c24\u5176\u662f\u5728\u8655\u7406\u5be6\u9ad4\u4e4b\u9593\u7684\u806f\u7e6b\u6642\u3002<\/p>\n

\u4e00\u5c0d\u591a\u95dc\u4fc2\u7684\u5be6\u73fe\u65b9\u6cd5<\/h2>\n

\u5be6\u73fe\u4e00\u5c0d\u591a\u95dc\u4fc2\u901a\u5e38\u6d89\u53ca\u5230\u5169\u500b\u8868\u7684\u8a2d\u8a08\uff1a\u4e3b\u8868\u548c\u5f9e\u8868\u3002\u4e3b\u8868\u5305\u542b\u4e00\u5c0d\u591a\u95dc\u4fc2\u4e2d\u7684\u201c\u7236\u201d\u5be6\u9ad4\uff0c\u800c\u5f9e\u8868\u5247\u5305\u542b\u201c\u5b50\u201d\u5be6\u9ad4\u3002\u4ee5\u4e0b\u662f\u5be6\u73fe\u4e00\u5c0d\u591a\u95dc\u4fc2\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n

1. \u8a2d\u8a08\u4e3b\u8868<\/h3>\n

\u9996\u5148\uff0c\u9700\u8981\u8a2d\u8a08\u4e3b\u8868\uff0c\u9019\u500b\u8868\u5c07\u5305\u542b\u552f\u4e00\u6a19\u8b58\u6bcf\u500b\u8a18\u9304\u7684\u4e3b\u9375\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u6559\u5e2b\u8868\uff1a<\/p>\n

CREATE TABLE Teachers (\n    TeacherID INT PRIMARY KEY,\n    TeacherName VARCHAR(100)\n);<\/code><\/pre>\n
2. \u8a2d\u8a08\u5f9e\u8868<\/h3>\n
\u63a5\u4e0b\u4f86\uff0c\u8a2d\u8a08\u5f9e\u8868\uff0c\u9019\u500b\u8868\u5c07\u5305\u542b\u4e00\u500b\u5916\u9375\uff0c\u8a72\u5916\u9375\u5f15\u7528\u4e3b\u8868\u7684\u4e3b\u9375\u3002\u4ee5\u8ab2\u7a0b\u8868\u70ba\u4f8b\uff1a<\/p>\n
CREATE TABLE Courses (\n    CourseID INT PRIMARY KEY,\n    CourseName VARCHAR(100),\n    TeacherID INT,\n    FOREIGN KEY (TeacherID) REFERENCES Teachers(TeacherID)\n);<\/code><\/pre>\n
3. \u63d2\u5165\u6578\u64da<\/h3>\n
\u5728\u8a2d\u8a08\u597d\u8868\u4e4b\u5f8c\uff0c\u53ef\u4ee5\u958b\u59cb\u63d2\u5165\u6578\u64da\u3002\u9996\u5148\u63d2\u5165\u6559\u5e2b\u6578\u64da\uff0c\u7136\u5f8c\u63d2\u5165\u8ab2\u7a0b\u6578\u64da\uff0c\u4e26\u78ba\u4fdd\u8ab2\u7a0b\u7684\u5916\u9375\u6b63\u78ba\u6307\u5411\u76f8\u61c9\u7684\u6559\u5e2b\uff1a<\/p>\n
INSERT INTO Teachers (TeacherID, TeacherName) VALUES (1, '\u5f35\u8001\u5e2b');\nINSERT INTO Teachers (TeacherID, TeacherName) VALUES (2, '\u674e\u8001\u5e2b');\n\nINSERT INTO Courses (CourseID, CourseName, TeacherID) VALUES (1, '\u6578\u5b78', 1);\nINSERT INTO Courses (CourseID, CourseName, TeacherID) VALUES (2, '\u7269\u7406', 1);\nINSERT INTO Courses (CourseID, CourseName, TeacherID) VALUES (3, '\u5316\u5b78', 2);<\/code><\/pre>\n
\u67e5\u8a62\u4e00\u5c0d\u591a\u95dc\u4fc2<\/h2>\n
\u4e00\u65e6\u6578\u64da\u88ab\u63d2\u5165\uff0c\u53ef\u4ee5\u4f7f\u7528 SQL \u67e5\u8a62\u4f86\u6aa2\u7d22\u4e00\u5c0d\u591a\u95dc\u4fc2\u7684\u6578\u64da\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u67e5\u8a62\u6240\u6709\u8ab2\u7a0b\u53ca\u5176\u5c0d\u61c9\u7684\u6559\u5e2b\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\uff1a<\/p>\n
SELECT Courses.CourseName, Teachers.TeacherName\nFROM Courses\nJOIN Teachers ON Courses.TeacherID = Teachers.TeacherID;<\/code><\/pre>\n
\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6bcf\u9580\u8ab2\u7a0b\u53ca\u5176\u5c0d\u61c9\u7684\u6559\u5e2b\u540d\u7a31\uff0c\u986f\u793a\u51fa\u4e00\u5c0d\u591a\u95dc\u4fc2\u7684\u5be6\u969b\u61c9\u7528\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u4e00\u5c0d\u591a\u95dc\u4fc2\u662f\u6578\u64da\u5eab\u8a2d\u8a08\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\uff0c\u6b63\u78ba\u5730\u5be6\u73fe\u9019\u7a2e\u95dc\u4fc2\u80fd\u5920\u63d0\u9ad8\u6578\u64da\u7684\u7d44\u7e54\u6027\u548c\u53ef\u67e5\u8a62\u6027\u3002\u901a\u904e\u8a2d\u8a08\u4e3b\u8868\u548c\u5f9e\u8868\uff0c\u4e26\u4f7f\u7528\u5916\u9375\u4f86\u5efa\u7acb\u806f\u7e6b\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u6aa2\u7d22\u6578\u64da\u3002\u7406\u89e3\u9019\u4e9b\u57fa\u672c\u6982\u5ff5\u548c\u5be6\u73fe\u65b9\u6cd5\uff0c\u5c0d\u65bc\u4efb\u4f55\u5e0c\u671b\u6df1\u5165\u5b78\u7fd2\u6578\u64da\u5eab\u8a2d\u8a08\u7684\u4eba\u4f86\u8aaa\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n
\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u6578\u64da\u5eab\u548c\u4f3a\u670d\u5668\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 Server.HK<\/a>\uff0c\u6211\u5011\u63d0\u4f9b\u5404\u7a2e VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7ba1\u7406\u60a8\u7684\u6578\u64da\u548c\u61c9\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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