{"id":187446,"date":"2024-11-11T14:20:24","date_gmt":"2024-11-11T06:20:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/187446\/"},"modified":"2024-11-11T14:20:25","modified_gmt":"2024-11-11T06:20:25","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%a0%a1%e9%a9%97%ef%bc%9a%e4%bf%9d%e9%9a%9c%e6%95%b8%e6%93%9a%e6%ba%96%e7%a2%ba%e6%80%a7%e5%92%8c%e5%8f%af%e9%9d%a0%e6%80%a7-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%a0%a1%e9%a9%97","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/187446\/","title":{"rendered":"\u6578\u64da\u5eab\u6821\u9a57\uff1a\u4fdd\u969c\u6578\u64da\u6e96\u78ba\u6027\u548c\u53ef\u9760\u6027 (\u6578\u64da\u5eab\u6821\u9a57)"},"content":{"rendered":"<h1 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id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%a0%a1%e9%a9%97%e7%9a%84%e6%96%b9%e6%b3%95-qbVnfuCakg\">\u6578\u64da\u5eab\u6821\u9a57\u7684\u65b9\u6cd5<\/h2>\n<p>\u6578\u64da\u5eab\u6821\u9a57\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u6821\u9a57\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e6%aa%a2%e6%9f%a5-qbVnfuCakg\">1. \u6578\u64da\u985e\u578b\u6aa2\u67e5<\/h3>\n<p>\u6bcf\u500b\u6578\u64da\u5eab\u5b57\u6bb5\u90fd\u6709\u5176\u7279\u5b9a\u7684\u6578\u64da\u985e\u578b\uff0c\u4f8b\u5982\u6574\u6578\u3001\u6d6e\u9ede\u6578\u3001\u5b57\u7b26\u4e32\u7b49\u3002\u6578\u64da\u985e\u578b\u6aa2\u67e5\u53ef\u4ee5\u78ba\u4fdd\u8f38\u5165\u7684\u6578\u64da\u7b26\u5408\u9810\u5b9a\u7684\u985e\u578b\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u4e00\u500b\u5e74\u9f61\u5b57\u6bb5\uff0c\u61c9\u8a72\u53ea\u5141\u8a31\u6574\u6578\u503c\uff1a<\/p>\n<pre><code>CREATE TABLE Users (\n    UserID INT PRIMARY KEY,\n    UserName VARCHAR(100),\n    Age INT CHECK (Age &gt;= 0)\n);<\/code><\/pre>\n<h3 id=\"2-%e5%94%af%e4%b8%80%e6%80%a7%e6%aa%a2%e6%9f%a5-qbVnfuCakg\">2. \u552f\u4e00\u6027\u6aa2\u67e5<\/h3>\n<p>\u552f\u4e00\u6027\u6aa2\u67e5\u78ba\u4fdd\u6578\u64da\u5eab\u4e2d\u7684\u67d0\u4e9b\u5b57\u6bb5\u4e0d\u6703\u51fa\u73fe\u91cd\u8907\u503c\u3002\u4f8b\u5982\uff0c\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\u901a\u5e38\u61c9\u8a72\u662f\u552f\u4e00\u7684\uff1a<\/p>\n<pre><code>CREATE TABLE Users (\n    UserID INT PRIMARY KEY,\n    Email VARCHAR(100) UNIQUE\n);<\/code><\/pre>\n<h3 id=\"3-%e7%af%84%e5%9c%8d%e6%aa%a2%e6%9f%a5-qbVnfuCakg\">3. \u7bc4\u570d\u6aa2\u67e5<\/h3>\n<p>\u7bc4\u570d\u6aa2\u67e5\u7528\u65bc\u78ba\u4fdd\u6578\u64da\u5728\u5408\u7406\u7684\u7bc4\u570d\u5167\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u4e00\u500b\u5206\u6578\u5b57\u6bb5\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u7bc4\u570d\u6aa2\u67e5\uff0c\u78ba\u4fdd\u5206\u6578\u57280\u5230100\u4e4b\u9593\uff1a<\/p>\n<pre><code>CREATE TABLE Scores (\n    StudentID INT,\n    Score INT CHECK (Score &gt;= 0 AND Score &lt;= 100)\n);<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-qbVnfuCakg\">\u7d50\u8ad6<\/h2>\n<p>\u6578\u64da\u5eab\u6821\u9a57\u662f\u78ba\u4fdd\u6578\u64da\u6e96\u78ba\u6027\u548c\u53ef\u9760\u6027\u7684\u95dc\u9375\u6b65\u9a5f\u3002\u901a\u904e\u5be6\u65bd\u6709\u6548\u7684\u6821\u9a57\u65b9\u6cd5\uff0c\u4f01\u696d\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u8cea\u91cf\uff0c\u589e\u5f37\u6c7a\u7b56\u652f\u6301\uff0c\u964d\u4f4e\u98a8\u96aa\uff0c\u4e26\u9075\u5faa\u5408\u898f\u8981\u6c42\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\u548c\u8907\u96dc\u6027\u7684\u589e\u52a0\uff0c\u6578\u64da\u5eab\u6821\u9a57\u7684\u91cd\u8981\u6027\u5c07\u6108\u52a0\u51f8\u986f\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u9700\u6c42\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6578\u64da\u5eab\u6821\u9a57\u78ba\u4fdd\u6578\u64da\u6e96\u78ba\u6027\u548c\u53ef\u9760\u6027\uff0c\u901a\u904e\u7cfb\u7d71\u6aa2\u67e5\u548c\u9a57\u8b49\uff0c\u63d0\u5347\u6578\u64da\u8cea\u91cf\uff0c\u652f\u6301\u696d\u52d9\u6c7a\u7b56\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-187446","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187446","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=187446"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187446\/revisions"}],"predecessor-version":[{"id":187447,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187446\/revisions\/187447"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=187446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=187446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=187446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}