{"id":5642,"date":"2024-11-14T08:43:19","date_gmt":"2024-11-14T00:43:19","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5642\/"},"modified":"2024-11-14T08:43:19","modified_gmt":"2024-11-14T00:43:19","slug":"sql%e5%88%86%e9%a1%b5%e6%9f%a5%e8%af%a2%e6%80%8e%e4%b9%88%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5642\/","title":{"rendered":"sql\u5206\u9875\u67e5\u8be2\u600e\u4e48\u5b9e\u73b0"},"content":{"rendered":"<p><strong>sql \u5206\u9875\u67e5\u8be2\u7684\u5b9e\u73b0<\/strong><\/p>\n<p><strong>\u4ec0\u4e48\u662f\u5206\u9875\u67e5\u8be2\uff1f<\/strong><\/p>\n<p>\u5206\u9875\u67e5\u8be2\u662f\u6307\u5c06\u5927\u578b\u6570\u636e\u96c6\u5206\u5272\u6210\u8f83\u5c0f\u7684\u3001\u6613\u4e8e\u7ba1\u7406\u7684\u90e8\u5206\uff0c\u8fd9\u4e9b\u90e8\u5206\u79f0\u4e3a &#8220;\u9875\u9762&#8221;\u3002<\/p>\n<p><strong>\u5982\u4f55\u5b9e\u73b0 SQL \u5206\u9875\u67e5\u8be2<\/strong><\/p>\n<p>\u5728 SQL \u4e2d\u5b9e\u73b0\u5206\u9875\u67e5\u8be2\u901a\u5e38\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<pre>SELECT * FROM table_name\nLIMIT offset, limit;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ul>\n<li> <strong>offset\uff1a<\/strong> \u4ece\u7ed3\u679c\u96c6\u4e2d\u8df3\u8fc7\u7684\u8bb0\u5f55\u6570\u3002<\/li>\n<li> <strong>limit\uff1a<\/strong> \u6bcf\u4e2a\u9875\u9762\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<p>\u4f8b\u5982\uff0c\u8981\u4ece &#8220;customers&#8221; \u8868\u4e2d\u83b7\u53d6\u7b2c\u4e8c\u9875\uff0c\u5176\u4e2d\u6bcf\u9875\u5305\u542b 10 \u6761\u8bb0\u5f55\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\uff1a<\/p>\n<pre>SELECT * FROM customers\nLIMIT 10, 10;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>\u5176\u4ed6\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>\u786e\u5b9a\u8981\u5206\u9875\u7684\u6570\u636e\u96c6\u7684\u5927\u5c0f\u3002<\/li>\n<li>\u9009\u62e9\u4e00\u4e2a\u5408\u9002\u7684\u9875\u9762\u5927\u5c0f\uff0c\u65e2\u8981\u4fdd\u8bc1\u67e5\u8be2\u6548\u7387\uff0c\u53c8\u8981\u6ee1\u8db3\u7528\u6237\u9700\u6c42\u3002<\/li>\n<li>\u8003\u8651\u4f7f\u7528\u6392\u5e8f\u6765\u4f18\u5316\u5206\u9875\u67e5\u8be2\uff0c\u5c24\u5176\u662f\u5728\u6570\u636e\u96c6\u5f88\u5927\u7684\u60c5\u51b5\u4e0b\u3002<\/li>\n<li>\u8003\u8651\u4f7f\u7528\u7d22\u5f15\u6765\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/li>\n<li>\u5728 SQL \u4e2d\uff0c\u5206\u9875\u901a\u5e38\u901a\u8fc7\u6570\u636e\u5e93\u670d\u52a1\u5668\u5b9e\u73b0\uff0c\u56e0\u6b64\u4e0d\u540c\u7684\u6570\u636e\u5e93\u7cfb\u7edf\u53ef\u80fd\u7565\u6709\u4e0d\u540c\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fsql\u5206\u9875\u67e5\u8be2\u600e\u4e48\u5b9e\u73b0\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\u7684\u5b9e\u73b0 \u4ec0\u4e48\u662f\u5206\u9875\u67e5\u8be2\uff1f \u5206\u9875\u67e5\u8be2\u662f\u6307\u5c06\u5927\u578b\u6570\u636e\u96c6\u5206\u5272\u6210\u8f83\u5c0f\u7684\u3001\u6613\u4e8e\u7ba1\u7406\u7684\u90e8\u5206\uff0c\u8fd9\u4e9b\u90e8\u5206\u79f0\u4e3a &#8220;\u9875\u9762&#8221;\u3002 \u5982\u4f55\u5b9e\u73b0 SQL \u5206\u9875\u67e5\u8be2 \u5728 SQL \u4e2d\u5b9e\u73b0\u5206\u9875\u67e5\u8be2\u901a\u5e38\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a SELECT * FROM table_name LIMIT offset, limit; \u767b\u5f55\u540e\u590d\u5236 offset\uff1a \u4ece\u7ed3\u679c\u96c6\u4e2d\u8df3\u8fc7\u7684\u8bb0\u5f55\u6570\u3002 limit\uff1a \u6bcf\u4e2a\u9875\u9762\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\u3002 \u793a\u4f8b \u4f8b\u5982\uff0c\u8981\u4ece &#8220;customers&#8221; \u8868\u4e2d\u83b7\u53d6\u7b2c\u4e8c\u9875\uff0c\u5176\u4e2d\u6bcf\u9875\u5305\u542b 10 \u6761\u8bb0\u5f55\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\uff1a SELECT * FROM customers LIMIT 10, 10; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4ed6\u6ce8\u610f\u4e8b\u9879 \u786e\u5b9a\u8981\u5206\u9875\u7684\u6570\u636e\u96c6\u7684\u5927\u5c0f\u3002 \u9009\u62e9\u4e00\u4e2a\u5408\u9002\u7684\u9875\u9762\u5927\u5c0f\uff0c\u65e2\u8981\u4fdd\u8bc1\u67e5\u8be2\u6548\u7387\uff0c\u53c8\u8981\u6ee1\u8db3\u7528\u6237\u9700\u6c42\u3002 \u8003\u8651\u4f7f\u7528\u6392\u5e8f\u6765\u4f18\u5316\u5206\u9875\u67e5\u8be2\uff0c\u5c24\u5176\u662f\u5728\u6570\u636e\u96c6\u5f88\u5927\u7684\u60c5\u51b5\u4e0b\u3002 \u8003\u8651\u4f7f\u7528\u7d22\u5f15\u6765\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002 \u5728 SQL \u4e2d\uff0c\u5206\u9875\u901a\u5e38\u901a\u8fc7\u6570\u636e\u5e93\u670d\u52a1\u5668\u5b9e\u73b0\uff0c\u56e0\u6b64\u4e0d\u540c\u7684\u6570\u636e\u5e93\u7cfb\u7edf\u53ef\u80fd\u7565\u6709\u4e0d\u540c\u3002 \u4ee5\u4e0a\u5c31\u662fsql\u5206\u9875\u67e5\u8be2\u600e\u4e48\u5b9e\u73b0\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},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5642","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5642","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=5642"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5642\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}