{"id":186366,"date":"2024-11-11T05:19:21","date_gmt":"2024-11-10T21:19:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/186366\/"},"modified":"2024-11-11T05:19:22","modified_gmt":"2024-11-10T21:19:22","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bb%a3%e7%a2%bc%e5%af%a6%e7%8f%be%e6%8a%80%e5%b7%a7%e5%8f%8a%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bb%a3%e7%a2%bc%e5%af%a6%e7%8f%be","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/186366\/","title":{"rendered":"\u6578\u64da\u5eab\u4ee3\u78bc\u5be6\u73fe\u6280\u5de7\u53ca\u6ce8\u610f\u4e8b\u9805\uff08\u6578\u64da\u5eab\u4ee3\u78bc\u5be6\u73fe\uff09"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bb%a3%e7%a2%bc%e5%af%a6%e7%8f%be%e6%8a%80%e5%b7%a7%e5%8f%8a%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bb%a3%e7%a2%bc%e5%af%a6%e7%8f%be-FiglbDFdFt\">\u6578\u64da\u5eab\u4ee3\u78bc\u5be6\u73fe\u6280\u5de7\u53ca\u6ce8\u610f\u4e8b\u9805\uff08\u6578\u64da\u5eab\u4ee3\u78bc\u5be6\u73fe\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u8a2d\u8a08\u8207\u5be6\u73fe\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u61c9\u7528\u9084\u662f\u5927\u578b\u4f01\u696d\u7cfb\u7d71\uff0c\u826f\u597d\u7684\u6578\u64da\u5eab\u4ee3\u78bc\u5be6\u73fe\u6280\u5de7\u90fd\u80fd\u986f\u8457\u63d0\u9ad8\u7cfb\u7d71\u7684\u6548\u7387\u548c\u53ef\u7dad\u8b77\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6578\u64da\u5eab\u4ee3\u78bc\u5be6\u73fe\u7684\u6280\u5de7\u53ca\u6ce8\u610f\u4e8b\u9805\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u5728\u5be6\u8e10\u4e2d\u907f\u514d\u5e38\u898b\u7684\u9677\u9631\u3002<\/p>\n<h2 id=\"1-%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a8%ad%e8%a8%88%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%8e%9f%e5%89%87-FiglbDFdFt\">1. \u6578\u64da\u5eab\u8a2d\u8a08\u7684\u57fa\u672c\u539f\u5247<\/h2>\n<p>\u5728\u958b\u59cb\u7de8\u5beb\u6578\u64da\u5eab\u4ee3\u78bc\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u9032\u884c\u5408\u7406\u7684\u6578\u64da\u5eab\u8a2d\u8a08\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u539f\u5247\uff1a<\/p>\n<ul>\n<li><strong>\u6b63\u898f\u5316\uff1a<\/strong>\u6b63\u898f\u5316\u662f\u6e1b\u5c11\u6578\u64da\u5197\u9918\u548c\u63d0\u9ad8\u6578\u64da\u5b8c\u6574\u6027\u7684\u904e\u7a0b\u3002\u901a\u904e\u5c07\u6578\u64da\u5206\u89e3\u70ba\u591a\u500b\u8868\uff0c\u4e26\u4f7f\u7528\u5916\u9375\u4f86\u5efa\u7acb\u95dc\u806f\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002<\/li>\n<li><strong>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\uff1a<\/strong>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u4e0d\u50c5\u80fd\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\uff0c\u9084\u80fd\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u6574\u6578\u6578\u64da\uff0c\u61c9\u4f7f\u7528\u6574\u6578\u985e\u578b\u800c\u975e\u5b57\u7b26\u4e32\u985e\u578b\u3002<\/li>\n<li><strong>\u7d22\u5f15\u7684\u4f7f\u7528\uff1a<\/strong>\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u4f46\u904e\u591a\u7684\u7d22\u5f15\u6703\u5f71\u97ff\u5beb\u5165\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u61c9\u6839\u64da\u67e5\u8a62\u9700\u6c42\u5408\u7406\u8a2d\u7f6e\u7d22\u5f15\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bb%a3%e7%a2%bc%e5%af%a6%e7%8f%be%e6%8a%80%e5%b7%a7-FiglbDFdFt\">2. \u6578\u64da\u5eab\u4ee3\u78bc\u5be6\u73fe\u6280\u5de7<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4ee3\u78bc\u5be6\u73fe\u904e\u7a0b\u4e2d\uff0c\u4ee5\u4e0b\u6280\u5de7\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u63d0\u9ad8\u4ee3\u78bc\u8cea\u91cf\uff1a<\/p>\n<h3 id=\"2-1-%e4%bd%bf%e7%94%a8%e5%8f%83%e6%95%b8%e5%8c%96%e6%9f%a5%e8%a9%a2-FiglbDFdFt\">2.1 \u4f7f\u7528\u53c3\u6578\u5316\u67e5\u8a62<\/h3>\n<p>\u70ba\u4e86\u9632\u6b62SQL\u6ce8\u5165\u653b\u64ca\uff0c\u61c9\u59cb\u7d42\u4f7f\u7528\u53c3\u6578\u5316\u67e5\u8a62\u3002\u9019\u4e0d\u50c5\u80fd\u63d0\u9ad8\u5b89\u5168\u6027\uff0c\u9084\u80fd\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528\u53c3\u6578\u5316\u67e5\u8a62\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE username = ? AND password = ?;<\/code><\/pre>\n<h3 id=\"2-2-%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5-FiglbDFdFt\">2.2 \u512a\u5316\u67e5\u8a62\u8a9e\u53e5<\/h3>\n<p>\u5728\u7de8\u5beb\u67e5\u8a62\u8a9e\u53e5\u6642\uff0c\u61c9\u907f\u514d\u4f7f\u7528SELECT *\uff0c\u800c\u662f\u660e\u78ba\u6307\u5b9a\u6240\u9700\u7684\u5217\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u50b3\u8f38\u91cf\uff0c\u63d0\u9ad8\u6027\u80fd\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT id, username FROM users WHERE status = 'active';<\/code><\/pre>\n<h3 id=\"2-3-%e4%bd%bf%e7%94%a8%e4%ba%8b%e5%8b%99%e7%ae%a1%e7%90%86%e6%95%b8%e6%93%9a%e4%b8%80%e8%87%b4%e6%80%a7-FiglbDFdFt\">2.3 \u4f7f\u7528\u4e8b\u52d9\u7ba1\u7406\u6578\u64da\u4e00\u81f4\u6027<\/h3>\n<p>\u5728\u9032\u884c\u591a\u500b\u6578\u64da\u64cd\u4f5c\u6642\uff0c\u61c9\u4f7f\u7528\u4e8b\u52d9\u4f86\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002\u4e8b\u52d9\u53ef\u4ee5\u78ba\u4fdd\u6240\u6709\u64cd\u4f5c\u8981\u9ebc\u5168\u90e8\u6210\u529f\uff0c\u8981\u9ebc\u5168\u90e8\u5931\u6557\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u4e8b\u52d9\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>BEGIN TRANSACTION;\nUPDATE accounts SET balance = balance - 100 WHERE user_id = 1;\nUPDATE accounts SET balance = balance + 100 WHERE user_id = 2;\nCOMMIT;<\/code><\/pre>\n<h2 id=\"3-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bb%a3%e7%a2%bc%e5%af%a6%e7%8f%be%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-FiglbDFdFt\">3. \u6578\u64da\u5eab\u4ee3\u78bc\u5be6\u73fe\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4ee3\u78bc\u5be6\u73fe\u904e\u7a0b\u4e2d\uff0c\u958b\u767c\u8005\u61c9\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u932f\u8aa4\u8655\u7406\uff1a<\/strong>\u5728\u57f7\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u61c9\u59cb\u7d42\u8003\u616e\u932f\u8aa4\u8655\u7406\u6a5f\u5236\uff0c\u4ee5\u4fbf\u5728\u51fa\u73fe\u554f\u984c\u6642\u80fd\u5920\u53ca\u6642\u97ff\u61c9\u3002<\/li>\n<li><strong>\u6027\u80fd\u76e3\u63a7\uff1a<\/strong>\u5b9a\u671f\u76e3\u63a7\u6578\u64da\u5eab\u6027\u80fd\uff0c\u53ca\u6642\u767c\u73fe\u4e26\u89e3\u6c7a\u6027\u80fd\u74f6\u9838\u3002<\/li>\n<li><strong>\u6587\u6a94\u5316\uff1a<\/strong>\u5c0d\u65bc\u8907\u96dc\u7684\u67e5\u8a62\u548c\u6578\u64da\u5eab\u7d50\u69cb\uff0c\u61c9\u9032\u884c\u8a73\u7d30\u7684\u6587\u6a94\u5316\uff0c\u4ee5\u4fbf\u5f8c\u7e8c\u7dad\u8b77\u548c\u958b\u767c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-FiglbDFdFt\">\u7e3d\u7d50<\/h2>\n<p>\u6578\u64da\u5eab\u4ee3\u78bc\u7684\u5be6\u73fe\u662f\u4e00\u500b\u9700\u8981\u8b39\u614e\u5c0d\u5f85\u7684\u904e\u7a0b\uff0c\u826f\u597d\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\u6280\u5de7\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u901a\u904e\u9075\u5faa\u6b63\u898f\u5316\u539f\u5247\u3001\u4f7f\u7528\u53c3\u6578\u5316\u67e5\u8a62\u3001\u512a\u5316\u67e5\u8a62\u8a9e\u53e5\u4ee5\u53ca\u5408\u7406\u7ba1\u7406\u4e8b\u52d9\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u5347\u6578\u64da\u5eab\u7684\u8cea\u91cf\u3002\u6b64\u5916\uff0c\u5b9a\u671f\u7684\u6027\u80fd\u76e3\u63a7\u548c\u8a73\u7d30\u7684\u6587\u6a94\u5316\u4e5f\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u670d\u52d9\u5c07\u662f\u660e\u667a\u4e4b\u8209\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u904b\u884c\u548c\u9ad8\u6548\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1\u6578\u64da\u5eab\u4ee3\u78bc\u5be6\u73fe\u6280\u5de7\u8207\u6ce8\u610f\u4e8b\u9805\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u8207\u5b89\u5168\u6027\uff0c\u78ba\u4fdd\u9ad8\u6548\u7a69\u5b9a\u7684\u6578\u64da\u7ba1\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-186366","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186366","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=186366"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186366\/revisions"}],"predecessor-version":[{"id":186367,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186366\/revisions\/186367"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=186366"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=186366"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=186366"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}