{"id":75964,"date":"2024-10-16T02:43:15","date_gmt":"2024-10-15T18:43:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/75964\/"},"modified":"2024-10-16T02:43:16","modified_gmt":"2024-10-15T18:43:16","slug":"mysql-%e5%88%86%e9%a0%81%e9%97%9c%e8%81%af%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/75964\/","title":{"rendered":"MySQL \u5206\u9801&amp;\u95dc\u806f\u67e5\u8a62\u512a\u5316"},"content":{"rendered":"<h1 id=\"mysql-%e5%88%86%e9%a0%81%e8%88%87%e9%97%9c%e8%81%af%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96-wcCVEYuhZP\">MySQL \u5206\u9801\u8207\u95dc\u806f\u67e5\u8a62\u512a\u5316<\/h1>\n<p>\u5728\u73fe\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6574\u9ad4\u6548\u80fd\u81f3\u95dc\u91cd\u8981\u3002MySQL \u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u7db2\u7ad9\u548c\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e MySQL \u7684\u5206\u9801\u6280\u8853\u53ca\u5176\u95dc\u806f\u67e5\u8a62\u7684\u512a\u5316\u65b9\u6cd5\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u63d0\u5347\u6578\u64da\u67e5\u8a62\u7684\u6548\u7387\u3002<\/p>\n<h2 id=\"%e5%88%86%e9%a0%81%e6%8a%80%e8%a1%93%e6%a6%82%e8%bf%b0-wcCVEYuhZP\">\u5206\u9801\u6280\u8853\u6982\u8ff0<\/h2>\n<p>\u5206\u9801\u662f\u6307\u5c07\u67e5\u8a62\u7d50\u679c\u5206\u6210\u591a\u500b\u9801\u9762\u986f\u793a\uff0c\u9019\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u5c24\u70ba\u91cd\u8981\u3002\u4f7f\u7528\u5206\u9801\u53ef\u4ee5\u6e1b\u5c11\u4e00\u6b21\u6027\u52a0\u8f09\u7684\u6578\u64da\u91cf\uff0c\u5f9e\u800c\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u97ff\u61c9\u901f\u5ea6\u3002MySQL \u63d0\u4f9b\u4e86 LIMIT \u548c OFFSET \u5169\u500b\u95dc\u9375\u5b57\u4f86\u5be6\u73fe\u5206\u9801\u529f\u80fd\u3002<\/p>\n<h3 id=\"%e5%9f%ba%e6%9c%ac%e7%9a%84%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2-wcCVEYuhZP\">\u57fa\u672c\u7684\u5206\u9801\u67e5\u8a62<\/h3>\n<pre><code>SELECT * FROM \u8868\u540d LIMIT \u6bcf\u9801\u986f\u793a\u6578\u91cf OFFSET \u7576\u524d\u9801\u6578 * \u6bcf\u9801\u986f\u793a\u6578\u91cf;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u986f\u793a\u7b2c 2 \u9801\uff0c\u6bcf\u9801\u986f\u793a 10 \u689d\u8a18\u9304\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM users LIMIT 10 OFFSET 10;<\/code><\/pre>\n<h2 id=\"%e9%97%9c%e8%81%af%e6%9f%a5%e8%a9%a2%e7%9a%84%e6%8c%91%e6%88%b0-wcCVEYuhZP\">\u95dc\u806f\u67e5\u8a62\u7684\u6311\u6230<\/h2>\n<p>\u95dc\u806f\u67e5\u8a62\u662f\u6307\u5728\u591a\u500b\u8868\u4e4b\u9593\u9032\u884c\u6578\u64da\u6aa2\u7d22\u3002\u9019\u985e\u67e5\u8a62\u901a\u5e38\u6d89\u53ca JOIN \u64cd\u4f5c\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\u3002\u7576\u6578\u64da\u91cf\u589e\u5927\u6642\uff0c\u95dc\u806f\u67e5\u8a62\u7684\u6548\u7387\u6703\u986f\u8457\u4e0b\u964d\uff0c\u7279\u5225\u662f\u5728\u6c92\u6709\u9069\u7576\u7d22\u5f15\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n<h3 id=\"%e5%84%aa%e5%8c%96%e9%97%9c%e8%81%af%e6%9f%a5%e8%a9%a2%e7%9a%84%e7%ad%96%e7%95%a5-wcCVEYuhZP\">\u512a\u5316\u95dc\u806f\u67e5\u8a62\u7684\u7b56\u7565<\/h3>\n<ul>\n<li><strong>\u4f7f\u7528\u7d22\u5f15\uff1a<\/strong>\u78ba\u4fdd\u5728\u95dc\u806f\u5b57\u6bb5\u4e0a\u5efa\u7acb\u7d22\u5f15\uff0c\u9019\u6a23\u53ef\u4ee5\u52a0\u901f\u67e5\u8a62\u904e\u7a0b\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/li>\n<pre><code>SELECT * FROM orders JOIN customers ON orders.customer_id = customers.id;<\/code><\/pre>\n<p>\u5728 <code>customer_id<\/code> \u548c <code>id<\/code> \u4e0a\u5efa\u7acb\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002<\/p>\n<li><strong>\u9078\u64c7\u6027\u67e5\u8a62\uff1a<\/strong>\u53ea\u9078\u64c7\u9700\u8981\u7684\u5b57\u6bb5\uff0c\u800c\u4e0d\u662f\u4f7f\u7528 <code>*<\/code>\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u50b3\u8f38\u91cf\u3002<\/li>\n<pre><code>SELECT orders.id, customers.name FROM orders JOIN customers ON orders.customer_id = customers.id;<\/code><\/pre>\n<li><strong>\u907f\u514d\u4e0d\u5fc5\u8981\u7684 JOIN\uff1a<\/strong>\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\uff0c\u61c9\u8003\u616e\u6578\u64da\u7684\u6b63\u898f\u5316\u548c\u53cd\u6b63\u898f\u5316\uff0c\u907f\u514d\u904e\u591a\u7684 JOIN \u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%88%86%e9%a0%81%e8%88%87%e9%97%9c%e8%81%af%e6%9f%a5%e8%a9%a2%e7%9a%84%e7%b5%90%e5%90%88-wcCVEYuhZP\">\u5206\u9801\u8207\u95dc\u806f\u67e5\u8a62\u7684\u7d50\u5408<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u5206\u9801\u548c\u95dc\u806f\u67e5\u8a62\u7d93\u5e38\u9700\u8981\u7d50\u5408\u4f7f\u7528\u3002\u9019\u6a23\u7684\u67e5\u8a62\u53ef\u80fd\u6703\u8b8a\u5f97\u8907\u96dc\uff0c\u4e26\u4e14\u6027\u80fd\u512a\u5316\u8b8a\u5f97\u66f4\u52a0\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728\u95dc\u806f\u67e5\u8a62\u4e2d\u5be6\u73fe\u5206\u9801\uff1a<\/p>\n<pre><code>SELECT orders.id, customers.name \nFROM orders \nJOIN customers ON orders.customer_id = customers.id \nLIMIT 10 OFFSET 0;<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u67e5\u8a62\u5c07\u8fd4\u56de\u7b2c\u4e00\u9801\u7684 10 \u689d\u8a02\u55ae\u53ca\u5176\u5c0d\u61c9\u7684\u5ba2\u6236\u540d\u7a31\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-wcCVEYuhZP\">\u7d50\u8ad6<\/h2>\n<p>MySQL \u7684\u5206\u9801\u548c\u95dc\u806f\u67e5\u8a62\u512a\u5316\u662f\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u7684\u95dc\u9375\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u7d22\u5f15\u3001\u9078\u64c7\u6027\u67e5\u8a62\u548c\u907f\u514d\u4e0d\u5fc5\u8981\u7684 JOIN\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u9019\u4e9b\u512a\u5316\u7b56\u7565\u5c07\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u5728\u9762\u5c0d\u6027\u80fd\u6311\u6230\u6642\u4fdd\u6301\u61c9\u7528\u7a0b\u5e8f\u7684\u6d41\u66a2\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 MySQL \u5206\u9801\u8207\u95dc\u806f\u67e5\u8a62\u7684\u512a\u5316\u6280\u5de7\uff0c\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6027\u80fd\uff0c\u8b93\u6578\u64da\u7ba1\u7406\u66f4\u6d41\u66a2\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-75964","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75964","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=75964"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75964\/revisions"}],"predecessor-version":[{"id":75965,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75964\/revisions\/75965"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=75964"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=75964"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=75964"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}