{"id":175557,"date":"2024-11-08T06:52:17","date_gmt":"2024-11-07T22:52:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175557\/"},"modified":"2024-11-08T06:52:18","modified_gmt":"2024-11-07T22:52:18","slug":"%e5%a6%82%e4%bd%95%e6%8f%90%e9%ab%98%e6%95%b8%e6%93%9a%e5%ba%ab%e8%ae%80%e5%8f%96%e6%95%88%e7%8e%87%ef%bc%88%e5%be%9e%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e8%ae%80%e6%95%b8%e6%93%9a%e9%80%9f%e5%ba%a6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175557\/","title":{"rendered":"\u5982\u4f55\u63d0\u9ad8\u6578\u64da\u5eab\u8b80\u53d6\u6548\u7387\uff08\u5f9e\u6578\u64da\u5eab\u4e2d\u8b80\u6578\u64da\u901f\u5ea6\u6162\uff09"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e6%8f%90%e9%ab%98%e6%95%b8%e6%93%9a%e5%ba%ab%e8%ae%80%e5%8f%96%e6%95%88%e7%8e%87%ef%bc%88%e5%be%9e%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e8%ae%80%e6%95%b8%e6%93%9a%e9%80%9f%e5%ba%a6-BXcdfGubbY\">\u5982\u4f55\u63d0\u9ad8\u6578\u64da\u5eab\u8b80\u53d6\u6548\u7387\uff08\u5f9e\u6578\u64da\u5eab\u4e2d\u8b80\u6578\u64da\u901f\u5ea6\u6162\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6574\u9ad4\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002\u7576\u6578\u64da\u5eab\u7684\u8b80\u53d6\u901f\u5ea6\u8b8a\u6162\u6642\uff0c\u53ef\u80fd\u6703\u5f71\u97ff\u7528\u6236\u9ad4\u9a57\uff0c\u751a\u81f3\u5c0e\u81f4\u696d\u52d9\u640d\u5931\u3002\u56e0\u6b64\uff0c\u4e86\u89e3\u5982\u4f55\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u8b80\u53d6\u6548\u7387\u662f\u6bcf\u500b\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u5fc5\u9808\u638c\u63e1\u7684\u6280\u80fd\u3002<\/p>\n<h2 id=\"1-%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5-BXcdfGubbY\">1. \u512a\u5316\u67e5\u8a62\u8a9e\u53e5<\/h2>\n<p>\u67e5\u8a62\u8a9e\u53e5\u7684\u6548\u7387\u76f4\u63a5\u5f71\u97ff\u6578\u64da\u5eab\u7684\u8b80\u53d6\u901f\u5ea6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u512a\u5316\u67e5\u8a62\u8a9e\u53e5\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u7d22\u5f15\uff1a<\/strong>\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002\u78ba\u4fdd\u5728\u7d93\u5e38\u67e5\u8a62\u7684\u5217\u4e0a\u5275\u5efa\u7d22\u5f15\uff0c\u7279\u5225\u662f\u4e3b\u9375\u548c\u5916\u9375\u3002<\/li>\n<li><strong>\u907f\u514d\u4f7f\u7528SELECT *\uff1a<\/strong>\u4f7f\u7528SELECT *\u6703\u5c0e\u81f4\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u50b3\u8f38\uff0c\u61c9\u8a72\u53ea\u9078\u64c7\u9700\u8981\u7684\u5217\u3002<\/li>\n<li><strong>\u4f7f\u7528JOIN\u800c\u975e\u5b50\u67e5\u8a62\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528JOIN\u53ef\u4ee5\u6bd4\u5b50\u67e5\u8a62\u66f4\u6709\u6548\u7387\u3002<\/li>\n<\/ul>\n<pre><code>SELECT name, age FROM users WHERE age &gt; 18;<\/code><\/pre>\n<h2 id=\"2-%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a8%ad%e8%a8%88-BXcdfGubbY\">2. \u6578\u64da\u5eab\u8a2d\u8a08<\/h2>\n<p>\u826f\u597d\u7684\u6578\u64da\u5eab\u8a2d\u8a08\u53ef\u4ee5\u63d0\u9ad8\u8b80\u53d6\u6548\u7387\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u8a2d\u8a08\u4e0a\u7684\u8003\u91cf\uff1a<\/p>\n<ul>\n<li><strong>\u6b63\u898f\u5316\uff1a<\/strong>\u901a\u904e\u6b63\u898f\u5316\u4f86\u6d88\u9664\u6578\u64da\u5197\u9918\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u5927\u5c0f\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li><strong>\u5206\u5340\uff1a<\/strong>\u5c0d\u65bc\u5927\u578b\u6578\u64da\u96c6\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u5206\u5340\u6280\u8853\uff0c\u5c07\u6578\u64da\u5206\u6563\u5230\u4e0d\u540c\u7684\u7269\u7406\u4f4d\u7f6e\uff0c\u9019\u6a23\u53ef\u4ee5\u52a0\u5feb\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li><strong>\u4f7f\u7528\u5408\u9069\u7684\u6578\u64da\u985e\u578b\uff1a<\/strong>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u53ef\u4ee5\u6e1b\u5c11\u5b58\u5132\u7a7a\u9593\uff0c\u5f9e\u800c\u63d0\u9ad8\u8b80\u53d6\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e6%95%b8%e6%93%9a%e5%ba%ab%e9%85%8d%e7%bd%ae-BXcdfGubbY\">3. \u6578\u64da\u5eab\u914d\u7f6e<\/h2>\n<p>\u6578\u64da\u5eab\u7684\u914d\u7f6e\u4e5f\u6703\u5f71\u97ff\u5176\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u914d\u7f6e\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u8abf\u6574\u7de9\u5b58\u8a2d\u7f6e\uff1a<\/strong>\u589e\u52a0\u7de9\u5b58\u5927\u5c0f\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u7684\u8b80\u53d6\u901f\u5ea6\uff0c\u7279\u5225\u662f\u5c0d\u65bc\u7d93\u5e38\u8a2a\u554f\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u4f7f\u7528\u9023\u63a5\u6c60\uff1a<\/strong>\u9023\u63a5\u6c60\u53ef\u4ee5\u6e1b\u5c11\u5efa\u7acb\u548c\u95dc\u9589\u6578\u64da\u5eab\u9023\u63a5\u7684\u958b\u92b7\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<li><strong>\u5b9a\u671f\u7dad\u8b77\uff1a<\/strong>\u5b9a\u671f\u9032\u884c\u6578\u64da\u5eab\u7dad\u8b77\uff0c\u5982\u91cd\u5efa\u7d22\u5f15\u548c\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\uff0c\u53ef\u4ee5\u4fdd\u6301\u6578\u64da\u5eab\u7684\u6700\u4f73\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"4-%e4%bd%bf%e7%94%a8%e5%bf%ab%e5%8f%96%e6%8a%80%e8%a1%93-BXcdfGubbY\">4. \u4f7f\u7528\u5feb\u53d6\u6280\u8853<\/h2>\n<p>\u5feb\u53d6\u6280\u8853\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u7684\u8b80\u53d6\u901f\u5ea6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u5feb\u53d6\u6280\u8853\uff1a<\/p>\n<ul>\n<li><strong>\u61c9\u7528\u5c64\u5feb\u53d6\uff1a<\/strong>\u5728\u61c9\u7528\u5c64\u4f7f\u7528\u5feb\u53d6\u6280\u8853\uff0c\u5982Redis\u6216Memcached\uff0c\u53ef\u4ee5\u6e1b\u5c11\u5c0d\u6578\u64da\u5eab\u7684\u76f4\u63a5\u67e5\u8a62\u3002<\/li>\n<li><strong>\u67e5\u8a62\u5feb\u53d6\uff1a<\/strong>\u8a31\u591a\u6578\u64da\u5eab\u7cfb\u7d71\u63d0\u4f9b\u67e5\u8a62\u5feb\u53d6\u529f\u80fd\uff0c\u53ef\u4ee5\u5c07\u5e38\u7528\u7684\u67e5\u8a62\u7d50\u679c\u7de9\u5b58\u8d77\u4f86\uff0c\u5f9e\u800c\u63d0\u9ad8\u8b80\u53d6\u901f\u5ea6\u3002<\/li>\n<\/ul>\n<h2 id=\"5-%e7%9b%a3%e6%8e%a7%e5%92%8c%e5%88%86%e6%9e%90-BXcdfGubbY\">5. \u76e3\u63a7\u548c\u5206\u6790<\/h2>\n<p>\u6301\u7e8c\u76e3\u63a7\u6578\u64da\u5eab\u6027\u80fd\u4e26\u9032\u884c\u5206\u6790\u662f\u63d0\u9ad8\u8b80\u53d6\u6548\u7387\u7684\u95dc\u9375\u3002\u4f7f\u7528\u6027\u80fd\u76e3\u63a7\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u8b58\u5225\u74f6\u9838\u548c\u6f5b\u5728\u554f\u984c\uff0c\u5f9e\u800c\u53ca\u6642\u9032\u884c\u8abf\u6574\u3002<\/p>\n<h3 id=\"%e7%b5%90%e8%ab%96-BXcdfGubbY\">\u7d50\u8ad6<\/h3>\n<p>\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u8b80\u53d6\u6548\u7387\u9700\u8981\u5f9e\u591a\u65b9\u9762\u5165\u624b\uff0c\u5305\u62ec\u512a\u5316\u67e5\u8a62\u8a9e\u53e5\u3001\u6539\u5584\u6578\u64da\u5eab\u8a2d\u8a08\u3001\u8abf\u6574\u914d\u7f6e\u3001\u4f7f\u7528\u5feb\u53d6\u6280\u8853\u4ee5\u53ca\u6301\u7e8c\u76e3\u63a7\u6027\u80fd\u3002\u901a\u904e\u9019\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u5347\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u5f9e\u800c\u6539\u5584\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u63d0\u5347\u60a8\u7684\u6578\u64da\u5eab\u6027\u80fd\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u4f3a\u670d\u5668<\/a>\uff0c\u9019\u4e9b\u5e73\u53f0\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u8cc7\u6e90\u548c\u9748\u6d3b\u7684\u914d\u7f6e\u9078\u9805\uff0c\u80fd\u5920\u6eff\u8db3\u5404\u7a2e\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u63d0\u9ad8\u6578\u64da\u5eab\u8b80\u53d6\u6548\u7387\u7684\u65b9\u6cd5\uff0c\u89e3\u6c7a\u6578\u64da\u5eab\u8b80\u53d6\u901f\u5ea6\u6162\u7684\u554f\u984c\uff0c\u512a\u5316\u67e5\u8a62\u548c\u7d22\u5f15\u8a2d\u8a08\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-175557","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175557","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=175557"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175557\/revisions"}],"predecessor-version":[{"id":175558,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175557\/revisions\/175558"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175557"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175557"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175557"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}