{"id":5902,"date":"2024-11-14T13:51:13","date_gmt":"2024-11-14T05:51:13","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5902\/"},"modified":"2024-11-14T13:51:13","modified_gmt":"2024-11-14T05:51:13","slug":"sql%e5%88%86%e9%a1%b5%e6%80%8e%e4%b9%88%e6%9f%a5%e8%af%a2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5902\/","title":{"rendered":"sql\u5206\u9875\u600e\u4e48\u67e5\u8be2"},"content":{"rendered":"<blockquote><p>\n  sql \u5206\u9875\u67e5\u8be2\u901a\u8fc7\u5c06\u6570\u636e\u96c6\u5212\u5206\u4e3a\u9875\u9762\u6765\u8fdb\u884c\uff0c\u6b65\u9aa4\u5982\u4e0b\uff1a\u786e\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\u3002\u8ba1\u7b97\u504f\u79fb\u91cf\uff08\u8df3\u8fc7\u7684\u8bb0\u5f55\u6570\uff09\u3002\u4f7f\u7528 limit \u5b50\u53e5\u6307\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\uff0c\u4f7f\u7528 offset \u5b50\u53e5\u6307\u5b9a\u504f\u79fb\u91cf\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u4f18\u5316\u6027\u80fd\u3001\u589e\u5f3a\u7528\u6237\u4f53\u9a8c\u548c\u8282\u7701\u670d\u52a1\u5668\u8d44\u6e90\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202406\/03\/2024060322031770373.jpg\" class=\"aligncenter\" title=\"sql\u5206\u9875\u600e\u4e48\u67e5\u8be2\u63d2\u56fe\" alt=\"sql\u5206\u9875\u600e\u4e48\u67e5\u8be2\u63d2\u56fe\" \/><\/p>\n<p><strong>SQL \u5206\u9875\u67e5\u8be2<\/strong><\/p>\n<p><strong>\u5982\u4f55\u8fdb\u884c SQL \u5206\u9875\u67e5\u8be2\uff1f<\/strong><\/p>\n<p>\u4f7f\u7528 SQL \u5206\u9875\u67e5\u8be2\uff0c\u53ef\u4ee5\u5c06\u5927\u578b\u6570\u636e\u96c6\u5212\u5206\u4e3a\u8f83\u5c0f\u7684\u9875\u9762\uff0c\u4ee5\u4fbf\u7528\u6237\u5206\u6279\u83b7\u53d6\u548c\u67e5\u770b\u3002<\/p>\n<p><strong>\u6267\u884c\u5206\u9875\u67e5\u8be2\u7684\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\u7684\u8bb0\u5f55\u6570\u91cf\uff0c\u4f8b\u5982 10 \u6216 20\u3002<\/li>\n<li> <strong>\u8ba1\u7b97\u504f\u79fb\u91cf\uff1a<\/strong>\u504f\u79fb\u91cf\u662f\u67e5\u8be2\u8df3\u8fc7\u7684\u8bb0\u5f55\u6570\u3002\u8981\u8ba1\u7b97\u504f\u79fb\u91cf\uff0c\u8bf7\u5c06\u8981\u663e\u793a\u7684\u9875\u9762\u51cf\u53bb 1\uff0c\u7136\u540e\u4e58\u4ee5\u6bcf\u9875\u8bb0\u5f55\u6570\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u7b2c 3 \u9875\uff0c\u504f\u79fb\u91cf\u5c06\u4e3a (3 &#8211; 1) * 10 = 20\u3002<\/li>\n<li> <strong>\u4f7f\u7528 LIMIT \u548c OFFSET \u5b50\u53e5\uff1a<\/strong>\u5728 SELECT \u8bed\u53e5\u4e2d\u4f7f\u7528 LIMIT \u5b50\u53e5\u6307\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\uff0c\u5e76\u4f7f\u7528 OFFSET \u5b50\u53e5\u6307\u5b9a\u504f\u79fb\u91cf\u3002<\/li>\n<\/ol>\n<p><strong>\u793a\u4f8b\u67e5\u8be2\uff1a<\/strong><\/p>\n<pre>SELECT *\nFROM table_name\nLIMIT 10\nOFFSET 20;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u6b64\u67e5\u8be2\u5c06\u4ece\u8868 table_name \u4e2d\u83b7\u53d6\u7b2c 3 \u9875\u7684\u8bb0\u5f55\uff0c\u6bcf\u9875\u5305\u542b 10 \u6761\u8bb0\u5f55\u3002<\/p>\n<p><strong>\u4f18\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u4f18\u5316\u6027\u80fd\uff1a\u5c06\u5927\u578b\u6570\u636e\u96c6\u5206\u9875\u53ef\u4ee5\u51cf\u5c11\u4e00\u6b21\u6027\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u7684\u8bb0\u5f55\u6570\u91cf\uff0c\u4ece\u800c\u63d0\u9ad8\u67e5\u8be2\u901f\u5ea6\u3002<\/li>\n<li>\u589e\u5f3a\u7528\u6237\u4f53\u9a8c\uff1a\u5206\u9875\u53ef\u4ee5\u8ba9\u7528\u6237\u66f4\u8f7b\u677e\u5730\u6d4f\u89c8\u5927\u578b\u6570\u636e\u96c6\uff0c\u800c\u65e0\u9700\u7b49\u5f85\u52a0\u8f7d\u6240\u6709\u8bb0\u5f55\u3002<\/li>\n<li>\u670d\u52a1\u5668\u8d44\u6e90\u8282\u7701\uff1a\u5206\u9875\u67e5\u8be2\u53ef\u4ee5\u51cf\u5c11\u670d\u52a1\u5668\u8d1f\u8f7d\uff0c\u56e0\u4e3a\u5b83\u6bcf\u6b21\u53ea\u5904\u7406\u8f83\u5c0f\u7684\u6570\u636e\u96c6\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fsql\u5206\u9875\u600e\u4e48\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>sql \u5206\u9875\u67e5\u8be2\u901a\u8fc7\u5c06\u6570\u636e\u96c6\u5212\u5206\u4e3a\u9875\u9762\u6765\u8fdb\u884c\uff0c\u6b65\u9aa4\u5982\u4e0b\uff1a\u786e\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\u3002\u8ba1\u7b97\u504f\u79fb\u91cf\uff08\u8df3\u8fc7\u7684\u8bb0\u5f55\u6570\uff09\u3002\u4f7f\u7528 limit \u5b50\u53e5\u6307\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\uff0c\u4f7f\u7528 offset \u5b50\u53e5\u6307\u5b9a\u504f\u79fb\u91cf\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u4f18\u5316\u6027\u80fd\u3001\u589e\u5f3a\u7528\u6237\u4f53\u9a8c\u548c\u8282\u7701\u670d\u52a1\u5668\u8d44\u6e90\u3002 SQL \u5206\u9875\u67e5\u8be2 \u5982\u4f55\u8fdb\u884c SQL \u5206\u9875\u67e5\u8be2\uff1f \u4f7f\u7528 SQL \u5206\u9875\u67e5\u8be2\uff0c\u53ef\u4ee5\u5c06\u5927\u578b\u6570\u636e\u96c6\u5212\u5206\u4e3a\u8f83\u5c0f\u7684\u9875\u9762\uff0c\u4ee5\u4fbf\u7528\u6237\u5206\u6279\u83b7\u53d6\u548c\u67e5\u770b\u3002 \u6267\u884c\u5206\u9875\u67e5\u8be2\u7684\u6b65\u9aa4\uff1a \u786e\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\uff1a\u51b3\u5b9a\u6bcf\u9875\u663e\u793a\u7684\u8bb0\u5f55\u6570\u91cf\uff0c\u4f8b\u5982 10 \u6216 20\u3002 \u8ba1\u7b97\u504f\u79fb\u91cf\uff1a\u504f\u79fb\u91cf\u662f\u67e5\u8be2\u8df3\u8fc7\u7684\u8bb0\u5f55\u6570\u3002\u8981\u8ba1\u7b97\u504f\u79fb\u91cf\uff0c\u8bf7\u5c06\u8981\u663e\u793a\u7684\u9875\u9762\u51cf\u53bb 1\uff0c\u7136\u540e\u4e58\u4ee5\u6bcf\u9875\u8bb0\u5f55\u6570\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u7b2c 3 \u9875\uff0c\u504f\u79fb\u91cf\u5c06\u4e3a (3 &#8211; 1) * 10 = 20\u3002 \u4f7f\u7528 LIMIT \u548c OFFSET \u5b50\u53e5\uff1a\u5728 SELECT \u8bed\u53e5\u4e2d\u4f7f\u7528 LIMIT \u5b50\u53e5\u6307\u5b9a\u6bcf\u9875\u8bb0\u5f55\u6570\uff0c\u5e76\u4f7f\u7528 OFFSET \u5b50\u53e5\u6307\u5b9a\u504f\u79fb\u91cf\u3002 \u793a\u4f8b\u67e5\u8be2\uff1a SELECT * FROM table_name LIMIT 10 OFFSET 20; \u767b\u5f55\u540e\u590d\u5236 \u6b64\u67e5\u8be2\u5c06\u4ece\u8868 table_name \u4e2d\u83b7\u53d6\u7b2c 3 [&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-5902","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5902","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=5902"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5902\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}