{"id":8057,"date":"2021-09-23T10:15:43","date_gmt":"2021-09-23T02:15:43","guid":{"rendered":"https:\/\/www.gbase8.cn\/?p=8057"},"modified":"2021-09-23T11:11:47","modified_gmt":"2021-09-23T03:11:47","slug":"gbase-8a-%e9%80%9a%e8%bf%87%e7%bb%8f%e7%ba%ac%e5%ba%a6%e8%ae%a1%e7%ae%97%e8%b7%9d%e7%a6%bb%e7%9a%84sql","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/8057","title":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a \u8fdc\u8fd1\u5e97\u5bb6\u63a8\u8350\u529f\u80fd\uff0c\u901a\u8fc7\u7ecf\u7eac\u5ea6\u8ba1\u7b972\u4e2a\u70b9\u4e4b\u95f4\u8ddd\u79bb\u7684SQL"},"content":{"rendered":"<p>\u672c\u6587\u4ecb\u7ecd\u5728GBase 8a\u4e2d\uff0c\u901a\u8fc72\u4e2a\u70b9\u7684\u7ecf\u7eac\u5ea6\uff0c\u8ba1\u7b97\u8ddd\u79bb\u7684SQL\u65b9\u6cd5\u3002\u8be5\u529f\u80fd\uff0c\u53ef\u4ee5\u7528\u4e8e\u8ddd\u79bb\u6307\u5b9a\u70b9\uff0c\u5468\u8fb9\u6700\u8fd1\u7684\u5e97\u5bb6\u63a8\u8350\u529f\u80fd\u3002<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Directory Navigation<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2b2c8c5e972\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a2b2c8c5e972\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.gbase8.cn\/en\/8057\/#%E8%AE%A1%E7%AE%97%E6%96%B9%E6%B3%95\" >\u8ba1\u7b97\u65b9\u6cd5<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.gbase8.cn\/en\/8057\/#%E5%8F%82%E6%95%B0\" >\u53c2\u6570<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.gbase8.cn\/en\/8057\/#%E8%BF%94%E5%9B%9E\" >\u8fd4\u56de<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.gbase8.cn\/en\/8057\/#%E8%A1%A8%E8%BE%BE%E5%BC%8F\" >\u8868\u8fbe\u5f0f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.gbase8.cn\/en\/8057\/#%E8%87%AA%E5%AE%9A%E4%B9%89%E5%87%BD%E6%95%B0\" >\u81ea\u5b9a\u4e49\u51fd\u6570<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.gbase8.cn\/en\/8057\/#%E8%BF%90%E8%A1%8C%E5%AE%9E%E4%BE%8B\" >\u8fd0\u884c\u5b9e\u4f8b<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%AE%A1%E7%AE%97%E6%96%B9%E6%B3%95\"><\/span>\u8ba1\u7b97\u65b9\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u81ea\u5b9a\u4e49\u51fd\u6570\u65b9\u5f0f\u867d\u7136\u4f7f\u7528\u7b80\u5355\uff0c\u4f46\u5982\u679c\u6570\u636e\u591a\uff0c\u9891\u7e41\u7684\u51fd\u6570\u8c03\u7528\uff0c\u6027\u80fd\u4f1a\u7531\u6781\u5927\u4e0b\u964d\uff0c\u5efa\u8bae\u7528\u8868\u8fbe\u5f0f\u65b9\u6848\uff0c\u6216\u8005\u7528C\u7b49\u7f16\u5199UDF\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%8F%82%E6%95%B0\"><\/span>\u53c2\u6570<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>lng1 \u70b91\u7684\u7ecf\u5ea6, -180 ~ 180<\/li><li>lat1 \u70b91\u7684\u7ef4\u5ea6\uff0c-90 ~ 90<\/li><li>lng2 \u70b92\u7684\u7ecf\u5ea6, -180 ~ 180<\/li><li>lat2 \u70b92\u7684\u7ef4\u5ea6\uff0c-90 ~ 90<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%BF%94%E5%9B%9E\"><\/span>\u8fd4\u56de <span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u8ddd\u79bb\uff0c\u5355\u4f4d\uff1a\u7c73<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%A1%A8%E8%BE%BE%E5%BC%8F\"><\/span>\u8868\u8fbe\u5f0f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>round(\n    (\n      6371 * acos(\n        cos(radians(lat1)) * cos(radians(lat2)) * cos(radians(lng1) - radians(lng2)) \n        + sin(radians(lat1)) * sin(radians(lat2))\n      )\n    )*1000\n  );<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%87%AA%E5%AE%9A%E4%B9%89%E5%87%BD%E6%95%B0\"><\/span>\u81ea\u5b9a\u4e49\u51fd\u6570<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u51fd\u6570\u8c03\u7528\u7684\u6027\u80fd\u4f4e\uff0c\u4e0d\u9002\u5408\u5927\u91cf\u6570\u636e\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>drop function if exists f_cal_distince;\ndelimiter \/\/\n\nCREATE FUNCTION `f_cal_distince`(lng1 double(15,9), lat1 double(15, 9), lng2 double(15,9), lat2 double(15,9)) RETURNS int(11)\nBEGIN\n  return round(\n    (\n      6371 * acos(\n        cos(radians(lat1)) * cos(radians(lat2)) * cos(radians(lng1) - radians(lng2)) \n        + sin(radians(lat1)) * sin(radians(lat2))\n      )\n    )*1000\n  );\nEND; \/\/\ndelimiter ;\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%BF%90%E8%A1%8C%E5%AE%9E%E4%BE%8B\"><\/span>\u8fd0\u884c\u5b9e\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; select f_cal_distince(106.486654 , 29.490295 , 106.581515 , 29.615467);\n+-----------------------------------------------------------------+\n| f_cal_distince(106.486654 , 29.490295 , 106.581515 , 29.615467) |\n+-----------------------------------------------------------------+\n|                                                           16671 |\n+-----------------------------------------------------------------+\n1 row in set (Elapsed: 00:00:00.00)\n<\/code><\/pre>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u4ecb\u7ecd\u5728GBase 8a\u4e2d\uff0c\u901a\u8fc72\u4e2a\u70b9\u7684\u7ecf\u7eac\u5ea6\uff0c\u8ba1\u7b97\u8ddd\u79bb\u7684SQL\u65b9\u6cd5\u3002\u8be5\u529f\u80fd\uff0c\u53ef\u4ee5\u7528\u4e8e\u8ddd\u79bb\u6307\u5b9a\u70b9\uff0c\u5468\u8fb9\u6700\u8fd1\u7684\u5e97\u5bb6\u63a8\u8350\u529f\u80fd\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-8057","post","type-post","status-publish","format-standard","hentry","category-gbase8a"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/8057","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=8057"}],"version-history":[{"count":10,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/8057\/revisions"}],"predecessor-version":[{"id":8073,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/8057\/revisions\/8073"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=8057"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=8057"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=8057"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}