{"id":153365,"date":"2024-11-02T06:50:20","date_gmt":"2024-11-01T22:50:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/153365\/"},"modified":"2024-11-02T06:50:21","modified_gmt":"2024-11-01T22:50:21","slug":"%e5%be%9e%e8%bc%b8%e5%85%a5-sql-%e5%88%b0%e8%bf%94%e5%9b%9e%e6%95%b8%e6%93%9a%ef%bc%8c%e5%88%b0%e5%ba%95%e7%99%bc%e7%94%9f%e4%ba%86%e4%bb%80%e9%ba%bc%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/153365\/","title":{"rendered":"\u5f9e\u8f38\u5165 SQL \u5230\u8fd4\u56de\u6578\u64da\uff0c\u5230\u5e95\u767c\u751f\u4e86\u4ec0\u9ebc\uff1f"},"content":{"rendered":"<h1 id=\"%e5%be%9e%e8%bc%b8%e5%85%a5-sql-%e5%88%b0%e8%bf%94%e5%9b%9e%e6%95%b8%e6%93%9a%ef%bc%8c%e5%88%b0%e5%ba%95%e7%99%bc%e7%94%9f%e4%ba%86%e4%bb%80%e9%ba%bc%ef%bc%9f-ujrpvddoPm\">\u5f9e\u8f38\u5165 SQL \u5230\u8fd4\u56de\u6578\u64da\uff0c\u5230\u5e95\u767c\u751f\u4e86\u4ec0\u9ebc\uff1f<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cSQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u7684\u4e3b\u8981\u5de5\u5177\u3002\u7121\u8ad6\u662f\u5f9e\u7c21\u55ae\u7684\u67e5\u8a62\u5230\u8907\u96dc\u7684\u6578\u64da\u64cd\u4f5c\uff0cSQL \u90fd\u5728\u5f8c\u7aef\u7cfb\u7d71\u4e2d\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5f9e\u8f38\u5165 SQL \u5230\u8fd4\u56de\u6578\u64da\u7684\u904e\u7a0b\uff0c\u5e6b\u52a9\u8b80\u8005\u7406\u89e3\u9019\u4e00\u904e\u7a0b\u4e2d\u7684\u6bcf\u4e00\u500b\u6b65\u9a5f\u3002<\/p>\n<h2 id=\"1-sql-%e6%9f%a5%e8%a9%a2%e7%9a%84%e8%bc%b8%e5%85%a5-ujrpvddoPm\">1. SQL \u67e5\u8a62\u7684\u8f38\u5165<\/h2>\n<p>\u7576\u7528\u6236\u6216\u61c9\u7528\u7a0b\u5e8f\u767c\u51fa SQL \u67e5\u8a62\u6642\uff0c\u9996\u5148\u9700\u8981\u5c07\u67e5\u8a62\u8a9e\u53e5\u767c\u9001\u5230\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08DBMS\uff09\u3002\u9019\u901a\u5e38\u662f\u901a\u904e\u4e00\u500b\u61c9\u7528\u7a0b\u5e8f\u63a5\u53e3\uff08API\uff09\u6216\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f\u4f86\u5be6\u73fe\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 SQL \u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE age &gt; 18;<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u7684\u76ee\u7684\u662f\u5f9e\u540d\u70ba &#8220;users&#8221; \u7684\u8868\u4e2d\u9078\u64c7\u6240\u6709\u5e74\u9f61\u5927\u65bc 18 \u7684\u7528\u6236\u3002<\/p>\n<h2 id=\"2-sql-%e6%9f%a5%e8%a9%a2%e7%9a%84%e8%a7%a3%e6%9e%90-ujrpvddoPm\">2. SQL \u67e5\u8a62\u7684\u89e3\u6790<\/h2>\n<p>\u7576 SQL \u67e5\u8a62\u88ab\u767c\u9001\u5230 DBMS \u6642\uff0c\u7b2c\u4e00\u6b65\u662f\u89e3\u6790\u67e5\u8a62\u3002\u89e3\u6790\u904e\u7a0b\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong>\u8a9e\u6cd5\u6aa2\u67e5\uff1a<\/strong>DBMS \u6703\u6aa2\u67e5 SQL \u8a9e\u53e5\u7684\u8a9e\u6cd5\u662f\u5426\u6b63\u78ba\u3002\u5982\u679c\u8a9e\u6cd5\u932f\u8aa4\uff0c\u7cfb\u7d71\u5c07\u8fd4\u56de\u932f\u8aa4\u4fe1\u606f\u3002<\/li>\n<li><strong>\u8a9e\u7fa9\u5206\u6790\uff1a<\/strong>\u5728\u8a9e\u6cd5\u6b63\u78ba\u7684\u60c5\u6cc1\u4e0b\uff0cDBMS \u6703\u6aa2\u67e5\u67e5\u8a62\u4e2d\u7684\u8868\u548c\u5217\u662f\u5426\u5b58\u5728\uff0c\u4e26\u78ba\u4fdd\u7528\u6236\u6709\u6b0a\u8a2a\u554f\u9019\u4e9b\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96-ujrpvddoPm\">3. \u67e5\u8a62\u512a\u5316<\/h2>\n<p>\u89e3\u6790\u5b8c\u6210\u5f8c\uff0cDBMS \u6703\u9032\u884c\u67e5\u8a62\u512a\u5316\u3002\u9019\u4e00\u904e\u7a0b\u65e8\u5728\u9078\u64c7\u6700\u4f73\u7684\u57f7\u884c\u8a08\u5283\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u7684\u6548\u7387\u3002\u512a\u5316\u5668\u6703\u8003\u616e\u591a\u7a2e\u56e0\u7d20\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u6578\u64da\u8868\u7684\u5927\u5c0f<\/li>\n<li>\u7d22\u5f15\u7684\u4f7f\u7528<\/li>\n<li>\u67e5\u8a62\u7684\u7d50\u69cb<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5c0d\u65bc\u4e0a\u8ff0\u67e5\u8a62\uff0c\u512a\u5316\u5668\u53ef\u80fd\u6703\u6c7a\u5b9a\u4f7f\u7528\u7d22\u5f15\u4f86\u52a0\u901f\u67e5\u8a62\u904e\u7a0b\u3002<\/p>\n<h2 id=\"4-%e5%9f%b7%e8%a1%8c%e8%a8%88%e5%8a%83%e7%9a%84%e7%94%9f%e6%88%90-ujrpvddoPm\">4. \u57f7\u884c\u8a08\u5283\u7684\u751f\u6210<\/h2>\n<p>\u512a\u5316\u5b8c\u6210\u5f8c\uff0cDBMS \u6703\u751f\u6210\u4e00\u500b\u57f7\u884c\u8a08\u5283\u3002\u9019\u500b\u8a08\u5283\u8a73\u7d30\u8aaa\u660e\u4e86\u5982\u4f55\u5be6\u969b\u57f7\u884c\u67e5\u8a62\uff0c\u5305\u62ec\u5982\u4f55\u8a2a\u554f\u6578\u64da\u3001\u5982\u4f55\u904e\u6ffe\u6578\u64da\u7b49\u3002\u57f7\u884c\u8a08\u5283\u901a\u5e38\u4ee5\u6a39\u72c0\u7d50\u69cb\u7684\u5f62\u5f0f\u8868\u793a\uff0c\u4e26\u5305\u542b\u5404\u7a2e\u64cd\u4f5c\uff0c\u5982\u6383\u63cf\u3001\u904e\u6ffe\u548c\u6392\u5e8f\u3002<\/p>\n<h2 id=\"5-%e6%9f%a5%e8%a9%a2%e7%9a%84%e5%9f%b7%e8%a1%8c-ujrpvddoPm\">5. \u67e5\u8a62\u7684\u57f7\u884c<\/h2>\n<p>\u4e00\u65e6\u57f7\u884c\u8a08\u5283\u751f\u6210\uff0cDBMS \u5c31\u6703\u958b\u59cb\u57f7\u884c\u67e5\u8a62\u3002\u9019\u4e00\u904e\u7a0b\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u6aa2\u7d22\uff1a<\/strong>\u6839\u64da\u57f7\u884c\u8a08\u5283\uff0cDBMS \u5f9e\u78c1\u789f\u4e2d\u6aa2\u7d22\u6240\u9700\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u6578\u64da\u8655\u7406\uff1a<\/strong>\u5c0d\u6aa2\u7d22\u5230\u7684\u6578\u64da\u9032\u884c\u904e\u6ffe\u3001\u6392\u5e8f\u548c\u805a\u5408\u7b49\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"6-%e8%bf%94%e5%9b%9e%e7%b5%90%e6%9e%9c-ujrpvddoPm\">6. \u8fd4\u56de\u7d50\u679c<\/h2>\n<p>\u67e5\u8a62\u57f7\u884c\u5b8c\u6210\u5f8c\uff0cDBMS \u6703\u5c07\u7d50\u679c\u96c6\u8fd4\u56de\u7d66\u7528\u6236\u6216\u61c9\u7528\u7a0b\u5e8f\u3002\u9019\u4e9b\u7d50\u679c\u901a\u5e38\u4ee5\u8868\u683c\u7684\u5f62\u5f0f\u5448\u73fe\uff0c\u4e26\u53ef\u4ee5\u9032\u4e00\u6b65\u8655\u7406\u6216\u986f\u793a\u7d66\u6700\u7d42\u7528\u6236\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-ujrpvddoPm\">\u7d50\u8ad6<\/h2>\n<p>\u5f9e\u8f38\u5165 SQL \u5230\u8fd4\u56de\u6578\u64da\u7684\u904e\u7a0b\u6d89\u53ca\u591a\u500b\u6b65\u9a5f\uff0c\u5305\u62ec\u89e3\u6790\u3001\u512a\u5316\u3001\u57f7\u884c\u7b49\u3002\u6bcf\u4e00\u500b\u6b65\u9a5f\u90fd\u5c0d\u6700\u7d42\u7684\u67e5\u8a62\u6027\u80fd\u548c\u7d50\u679c\u6709\u8457\u91cd\u8981\u5f71\u97ff\u3002\u7406\u89e3\u9019\u4e00\u904e\u7a0b\u4e0d\u50c5\u6709\u52a9\u65bc\u958b\u767c\u8005\u64b0\u5beb\u66f4\u9ad8\u6548\u7684 SQL \u67e5\u8a62\uff0c\u9084\u80fd\u5e6b\u52a9\u4ed6\u5011\u5728\u9762\u5c0d\u6027\u80fd\u554f\u984c\u6642\u9032\u884c\u66f4\u6709\u6548\u7684\u8abf\u8a66\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u9999\u6e2f\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u74b0\u5883\u4e2d\u512a\u5316 SQL \u67e5\u8a62\u6709\u8208\u8da3\uff0c\u6216\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u6e90\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5f9e\u8f38\u5165 SQL \u67e5\u8a62\u5230\u8fd4\u56de\u6578\u64da\u7684\u904e\u7a0b\uff0c\u63ed\u793a\u6578\u64da\u5eab\u5982\u4f55\u8655\u7406\u8acb\u6c42\u53ca\u5176\u80cc\u5f8c\u7684\u904b\u4f5c\u539f\u7406\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-153365","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153365","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=153365"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153365\/revisions"}],"predecessor-version":[{"id":153366,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153365\/revisions\/153366"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=153365"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=153365"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=153365"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}