{"id":28102,"date":"2024-11-24T14:47:40","date_gmt":"2024-11-24T06:47:40","guid":{"rendered":"https:\/\/fwq.ai\/blog\/28102\/"},"modified":"2024-11-24T14:47:40","modified_gmt":"2024-11-24T06:47:40","slug":"%e5%85%b3%e8%81%94%e6%9f%a5%e8%af%a2%e4%b8%ad-p2-product_type-p1-product_type-%e5%92%8c%e5%88%86%e7%bb%84%e6%93%8d%e4%bd%9c%e7%9a%84%e4%bd%9c%e7%94%a8%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/28102\/","title":{"rendered":"\u5173\u8054\u67e5\u8be2\u4e2d p2.product_type = p1.product_type \u548c\u5206\u7ec4\u64cd\u4f5c\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173139807116737.jpg\" class=\"aligncenter\" title=\"\u5173\u8054\u67e5\u8be2\u4e2d p2.product_type = p1.product_type \u548c\u5206\u7ec4\u64cd\u4f5c\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f\u63d2\u56fe\" alt=\"\u5173\u8054\u67e5\u8be2\u4e2d p2.product_type = p1.product_type \u548c\u5206\u7ec4\u64cd\u4f5c\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f\u63d2\u56fe\" \/><\/p>\n<\/p>\n<h2>\u5173\u8054\u67e5\u8be2\u4e2d p2.product_type = p1.product_type \u7684\u4f5c\u7528\u53ca\u5206\u7ec4\u7684\u76ee\u7684<\/h2>\n<p>\u5728\u7ed9\u51fa\u7684\u5173\u8054\u67e5\u8be2\u4e2d\uff0c\u4f7f\u7528\u4e86 p2.product_type = p1.product_type\uff0c\u8fd8\u6307\u5b9a\u4e86\u5206\u7ec4\u64cd\u4f5c\u3002\u4e0b\u9762\u89e3\u91ca\u8fd9\u4e9b\u5143\u7d20\u7684\u4f5c\u7528\u548c\u76ee\u7684\u3002<\/p>\n<\/p>\n<h3>p2.product_type = p1.product_type<\/h3>\n<p>\u5728\u6b64\u67e5\u8be2\u4e2d\uff0cp2 \u6765\u81ea\u4e8e from product as p2\u3002\u8fd9\u610f\u5473\u7740\u5c06 product \u8868\u5728\u8fd9\u4e2a\u8bed\u53e5\u4e2d\u91cd\u547d\u540d\u4e3a p2\uff0c\u4ee5\u4fbf\u4e8e\u5728\u540e\u7eed\u5f15\u7528\u4e2d\u8fdb\u884c\u533a\u5206\u3002\u56e0\u6b64\uff0cp2 \u4ee3\u8868 product \u8868\u3002<\/p>\n<p>p2.product_type = p1.product_type \u8868\u793a\uff0c\u5728\u52a0\u5165\u8868 p1 \u548c p2 \u65f6\uff0c\u53ea\u9009\u62e9\u90a3\u4e9b product_type \u76f8\u540c\u7684\u884c\u3002\u6362\u8a00\u4e4b\uff0c\u53ea\u6709\u5f53 p1 \u548c p2 \u5177\u6709\u76f8\u540c\u7684\u5546\u54c1\u7c7b\u578b\u65f6\uff0c\u5b83\u4eec\u624d\u4f1a\u88ab\u5173\u8054\u8d77\u6765\u3002<\/p>\n<\/p>\n<h3>\u5206\u7ec4<\/h3>\n<p>GROUP BY product_type \u8868\u793a\uff0c\u67e5\u8be2\u7ed3\u679c\u5e94\u6839\u636e product_type \u5206\u7ec4\u3002\u8fd9\u610f\u5473\u7740\u67e5\u8be2\u5c06\u8ba1\u7b97\u6bcf\u4e2a product_type \u7684\u805a\u5408\u503c\uff08\u4f8b\u5982\uff0c\u5e73\u5747\u4ef7\u683c\uff09\u3002\u5982\u679c\u6ca1\u6709\u5206\u7ec4\uff0c\u67e5\u8be2\u5c06\u53ea\u8fd4\u56de\u5355\u4e2a\u5e73\u5747\u503c\uff0c\u800c\u4e0d\u8003\u8651 product_type\u3002<\/p>\n<\/p>\n<h3>\u7ed3\u5408\u4f7f\u7528<\/h3>\n<p>\u7ed3\u5408\u4f7f\u7528 p2.product_type = p1.product_type \u548c GROUP BY product_type\uff0c\u67e5\u8be2\u5c06\u8ba1\u7b97\u6bcf\u4e2a product_type \u7684\u5e73\u5747\u503c\u3002\u8fd9\u53ef\u4ee5\u63d0\u4f9b\u6709\u5173\u4e0d\u540c\u5546\u54c1\u7c7b\u578b\u5e73\u5747\u4ef7\u683c\u7684\u4fe1\u606f\uff0c\u8fd9\u5728\u5206\u6790\u548c\u4e1a\u52a1\u51b3\u7b56\u4e2d\u53ef\u80fd\u5f88\u6709\u7528\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5173\u8054\u67e5\u8be2\u4e2d p2.product_type = p1.product_type \u548c\u5206\u7ec4\u64cd\u4f5c\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5173\u8054\u67e5\u8be2\u4e2d p2.product_type = p1.product_type \u7684\u4f5c\u7528\u53ca\u5206\u7ec4\u7684\u76ee\u7684 \u5728\u7ed9\u51fa\u7684\u5173\u8054\u67e5\u8be2\u4e2d\uff0c\u4f7f\u7528\u4e86 p2.product_type = p1.product_type\uff0c\u8fd8\u6307\u5b9a\u4e86\u5206\u7ec4\u64cd\u4f5c\u3002\u4e0b\u9762\u89e3\u91ca\u8fd9\u4e9b\u5143\u7d20\u7684\u4f5c\u7528\u548c\u76ee\u7684\u3002 p2.product_type = p1.product_type \u5728\u6b64\u67e5\u8be2\u4e2d\uff0cp2 \u6765\u81ea\u4e8e from product as p2\u3002\u8fd9\u610f\u5473\u7740\u5c06 product \u8868\u5728\u8fd9\u4e2a\u8bed\u53e5\u4e2d\u91cd\u547d\u540d\u4e3a p2\uff0c\u4ee5\u4fbf\u4e8e\u5728\u540e\u7eed\u5f15\u7528\u4e2d\u8fdb\u884c\u533a\u5206\u3002\u56e0\u6b64\uff0cp2 \u4ee3\u8868 product \u8868\u3002 p2.product_type = p1.product_type \u8868\u793a\uff0c\u5728\u52a0\u5165\u8868 p1 \u548c p2 \u65f6\uff0c\u53ea\u9009\u62e9\u90a3\u4e9b product_type \u76f8\u540c\u7684\u884c\u3002\u6362\u8a00\u4e4b\uff0c\u53ea\u6709\u5f53 p1 \u548c p2 \u5177\u6709\u76f8\u540c\u7684\u5546\u54c1\u7c7b\u578b\u65f6\uff0c\u5b83\u4eec\u624d\u4f1a\u88ab\u5173\u8054\u8d77\u6765\u3002 \u5206\u7ec4 GROUP BY product_type \u8868\u793a\uff0c\u67e5\u8be2\u7ed3\u679c\u5e94\u6839\u636e product_type \u5206\u7ec4\u3002\u8fd9\u610f\u5473\u7740\u67e5\u8be2\u5c06\u8ba1\u7b97\u6bcf\u4e2a product_type \u7684\u805a\u5408\u503c\uff08\u4f8b\u5982\uff0c\u5e73\u5747\u4ef7\u683c\uff09\u3002\u5982\u679c\u6ca1\u6709\u5206\u7ec4\uff0c\u67e5\u8be2\u5c06\u53ea\u8fd4\u56de\u5355\u4e2a\u5e73\u5747\u503c\uff0c\u800c\u4e0d\u8003\u8651 product_type\u3002 \u7ed3\u5408\u4f7f\u7528 \u7ed3\u5408\u4f7f\u7528 p2.product_type = p1.product_type \u548c GROUP [&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-28102","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/28102","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=28102"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/28102\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=28102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=28102"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=28102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}