{"id":6420,"date":"2024-11-14T10:23:22","date_gmt":"2024-11-14T02:23:22","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6420\/"},"modified":"2024-11-14T10:23:22","modified_gmt":"2024-11-14T02:23:22","slug":"mysql%e5%88%86%e9%a1%b5%e6%9f%a5%e8%af%a2sql%e8%af%ad%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6420\/","title":{"rendered":"mysql\u5206\u9875\u67e5\u8be2sql\u8bed\u53e5"},"content":{"rendered":"<blockquote><p>\n  \u4f7f\u7528 mysql \u7684 limit \u548c offset \u5b50\u53e5\u5206\u9875\uff1a1. \u786e\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\u30022. \u8ba1\u7b97\u504f\u79fb\u91cf\uff1a\u504f\u79fb\u91cf = (\u5f53\u524d\u9875\u7801 &#8211; 1) * \u6bcf\u9875\u8bb0\u5f55\u6570\u30023. \u5728\u67e5\u8be2\u4e2d\uff0c\u4f7f\u7528 limit \u5b50\u53e5\u6307\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\uff0c\u4f7f\u7528 offset \u5b50\u53e5\u6307\u5b9a\u504f\u79fb\u91cf\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202408\/02\/2024080207424325469.jpg\" class=\"aligncenter\" title=\"mysql\u5206\u9875\u67e5\u8be2sql\u8bed\u53e5\u63d2\u56fe\" alt=\"mysql\u5206\u9875\u67e5\u8be2sql\u8bed\u53e5\u63d2\u56fe\" \/><\/p>\n<p><strong>MySQL \u5206\u9875\u67e5\u8be2 SQL \u8bed\u53e5<\/strong><\/p>\n<p><strong>\u95ee\u9898\uff1a\u5982\u4f55\u4f7f\u7528 MySQL \u6267\u884c\u5206\u9875\u67e5\u8be2\uff1f<\/strong><\/p>\n<p><strong>\u7b54\u6848\uff1a<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 LIMIT \u548c OFFSET \u5b50\u53e5\u5bf9 MySQL \u67e5\u8be2\u8fdb\u884c\u5206\u9875\u3002<\/p>\n<p><strong>\u6b65\u9aa4\uff1a<\/strong><\/p>\n<ol>\n<li> <strong>\u786e\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\uff1a<\/strong>\u51b3\u5b9a\u6bcf\u9875\u663e\u793a\u591a\u5c11\u6761\u8bb0\u5f55\u3002<\/li>\n<li> <strong>\u8ba1\u7b97\u504f\u79fb\u91cf\uff1a<\/strong>\u6839\u636e\u5f53\u524d\u9875\u7801\u548c\u6bcf\u9875\u8bb0\u5f55\u6570\u8ba1\u7b97\u504f\u79fb\u91cf\u3002<\/li>\n<li> <strong>\u4f7f\u7528 LIMIT \u548c OFFSET\uff1a<\/strong>\u5728\u67e5\u8be2\u4e2d\u4f7f\u7528 LIMIT \u5b50\u53e5\u6307\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\uff0c\u4f7f\u7528 OFFSET \u5b50\u53e5\u6307\u5b9a\u504f\u79fb\u91cf\u3002<\/li>\n<\/ol>\n<p><strong>\u8bed\u6cd5\uff1a<\/strong><\/p>\n<pre>SELECT * FROM table_name\nORDER BY column_name\nLIMIT page_size OFFSET (page_number - 1) * page_size;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u5047\u8bbe\u6709\u4e00\u4e2a\u540d\u4e3a users \u7684\u8868\uff0c\u6bcf\u9875\u9700\u8981\u663e\u793a 10 \u6761\u8bb0\u5f55\uff0c\u5e76\u4e14\u5f53\u524d\u8981\u67e5\u8be2\u7b2c 2 \u9875\u3002<\/p>\n<pre>SELECT * FROM users\nORDER BY id\nLIMIT 10 OFFSET (2 - 1) * 10;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u4e2a\u67e5\u8be2\u5c06\u8fd4\u56de users \u8868\u4e2d\u7b2c 11 \u81f3 20 \u6761\u8bb0\u5f55\u3002<\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>ORDER BY \u5b50\u53e5\u7528\u4e8e\u5bf9\u8fd4\u56de\u7684\u8bb0\u5f55\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n<li>OFFSET \u5b50\u53e5\u4ece\u6307\u5b9a\u7684\u504f\u79fb\u91cf\u5904\u5f00\u59cb\u8fd4\u56de\u8bb0\u5f55\u3002<\/li>\n<li>\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684\u6392\u5e8f\u987a\u5e8f\u548c\u504f\u79fb\u91cf\u6765\u5b9e\u73b0\u4e0d\u540c\u7684\u5206\u9875\u6548\u679c\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5206\u9875\u67e5\u8be2\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528 mysql \u7684 limit \u548c offset \u5b50\u53e5\u5206\u9875\uff1a1. \u786e\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\u30022. \u8ba1\u7b97\u504f\u79fb\u91cf\uff1a\u504f\u79fb\u91cf = (\u5f53\u524d\u9875\u7801 &#8211; 1) * \u6bcf\u9875\u8bb0\u5f55\u6570\u30023. \u5728\u67e5\u8be2\u4e2d\uff0c\u4f7f\u7528 limit \u5b50\u53e5\u6307\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\uff0c\u4f7f\u7528 offset \u5b50\u53e5\u6307\u5b9a\u504f\u79fb\u91cf\u3002 MySQL \u5206\u9875\u67e5\u8be2 SQL \u8bed\u53e5 \u95ee\u9898\uff1a\u5982\u4f55\u4f7f\u7528 MySQL \u6267\u884c\u5206\u9875\u67e5\u8be2\uff1f \u7b54\u6848\uff1a \u53ef\u4ee5\u4f7f\u7528 LIMIT \u548c OFFSET \u5b50\u53e5\u5bf9 MySQL \u67e5\u8be2\u8fdb\u884c\u5206\u9875\u3002 \u6b65\u9aa4\uff1a \u786e\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\uff1a\u51b3\u5b9a\u6bcf\u9875\u663e\u793a\u591a\u5c11\u6761\u8bb0\u5f55\u3002 \u8ba1\u7b97\u504f\u79fb\u91cf\uff1a\u6839\u636e\u5f53\u524d\u9875\u7801\u548c\u6bcf\u9875\u8bb0\u5f55\u6570\u8ba1\u7b97\u504f\u79fb\u91cf\u3002 \u4f7f\u7528 LIMIT \u548c OFFSET\uff1a\u5728\u67e5\u8be2\u4e2d\u4f7f\u7528 LIMIT \u5b50\u53e5\u6307\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\uff0c\u4f7f\u7528 OFFSET \u5b50\u53e5\u6307\u5b9a\u504f\u79fb\u91cf\u3002 \u8bed\u6cd5\uff1a SELECT * FROM table_name ORDER BY column_name LIMIT [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-6420","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6420","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=6420"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6420\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6420"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6420"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}