{"id":53472,"date":"2024-12-03T12:05:28","date_gmt":"2024-12-03T04:05:28","guid":{"rendered":"https:\/\/fwq.ai\/blog\/53472\/"},"modified":"2024-12-03T12:05:28","modified_gmt":"2024-12-03T04:05:28","slug":"%e5%a6%82%e4%bd%95%e7%94%a8%e6%ad%a3%e5%88%99%e8%a1%a8%e8%be%be%e5%bc%8f%e5%ae%9e%e7%8e%b0%e5%b0%8f%e8%af%b4%e5%88%86%e6%ae%b5%e6%8e%92%e7%89%88%ef%bc%9f-3","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/53472\/","title":{"rendered":"\u5982\u4f55\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5b9e\u73b0\u5c0f\u8bf4\u5206\u6bb5\u6392\u7248\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u5982\u4f55\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5b9e\u73b0\u5c0f\u8bf4\u5206\u6bb5\u6392\u7248\uff1f <\/h1>\n<p>\u5728\u6587\u7ae0\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u7c73\u4e91\u5c31\u6574\u7406\u5206\u4eab\u300a\u5982\u4f55\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5b9e\u73b0\u5c0f\u8bf4\u5206\u6bb5\u6392\u7248\uff1f \u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241130\/1732969667674b04c33daac.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5b9e\u73b0\u5c0f\u8bf4\u5206\u6bb5\u6392\u7248\uff1f\u63d2\u56fe\" alt=\"\u5982\u4f55\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5b9e\u73b0\u5c0f\u8bf4\u5206\u6bb5\u6392\u7248\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u6b63\u5219\u8868\u8fbe\u5f0f\u5b9e\u73b0\u5c0f\u8bf4\u5206\u6bb5\u6392\u7248\u7684\u5229\u5668<\/strong><\/p>\n<p>\u5728\u5c0f\u8bf4\u6392\u7248\u4e2d\uff0c\u63a7\u5236\u6bcf\u884c\u663e\u793a\u5b57\u7b26\u6570\u91cf\u5e76\u5408\u7406\u5206\u6bb5\u662f\u5e38\u89c1\u9700\u6c42\u3002\u5176\u4e2d\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\u51ed\u501f\u5176\u5f3a\u5927\u7684\u6587\u672c\u5904\u7406\u80fd\u529b\u6210\u4e3a\u8fd9\u4e00\u4efb\u52a1\u7684\u7406\u60f3\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<p>\u8981\u5b9e\u73b0\u6bcf\u884c\u9650\u5b9a40\u4e2a\u5b57\u7b26\uff0c\u81ea\u52a8\u5206\u6bb5\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u6b63\u5219\u8868\u8fbe\u5f0f\uff1a<\/p>\n<pre>.{30,49}[\uff0c\u3002]|.{40}<\/pre>\n<p><strong>\u6b63\u5219\u8868\u8fbe\u5f0f\u8be6\u89e3\uff1a<\/strong><\/p>\n<ul>\n<li><strong>.{30,49}\uff1a[<\/strong>\uff1a\u5339\u914d30\u81f349\u4e2a\u4efb\u610f\u5b57\u7b26\u5e8f\u5217\u3002<\/li>\n<li><strong>[\uff0c\u3002]<\/strong>\uff1a\u5339\u914d\u9017\u53f7\u6216\u53e5\u53f7\u3002<\/li>\n<li><strong>|.{40}<\/strong>\uff1a\u6216\u64cd\u4f5c\u7b26\uff1b\u5339\u914d40\u4e2a\u4efb\u610f\u5b57\u7b26\u5e8f\u5217\u3002<\/li>\n<\/ul>\n<p><strong>\u5de5\u4f5c\u539f\u7406\uff1a<\/strong><\/p>\n<p>\u8be5\u6b63\u5219\u8868\u8fbe\u5f0f\u4f18\u5148\u5339\u914d\u6bcf\u884c\u4e2d\u4ecb\u4e8e30\u81f349\u4e2a\u5b57\u7b26\u4e4b\u95f4\uff0c\u4e14\u4ee5\u9017\u53f7\u6216\u53e5\u53f7\u7ed3\u5c3e\u7684\u5185\u5bb9\u3002\u5982\u679c\u6709\u5339\u914d\u9879\uff0c\u5219\u5728\u5339\u914d\u9879\u540e\u8fdb\u884c\u5206\u6bb5\u6362\u884c\u3002<\/p>\n<p>\u5982\u679c\u6ca1\u6709\u4ee5\u9017\u53f7\u6216\u53e5\u53f7\u7ed3\u5c3e\u7684\u5339\u914d\u9879\uff0c\u5219\u5339\u914d\u6bcf\u884c\u524d40\u4e2a\u5b57\u7b26\uff0c\u5e76\u5728\u7b2c41\u4e2a\u5b57\u7b26\u5904\u8fdb\u884c\u5206\u6bb5\u6362\u884c\u3002<\/p>\n<p><strong>\u4f7f\u7528\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u5728Notepad++\u7f16\u8f91\u5668\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u67e5\u627e\u5e76\u66ff\u6362\u529f\u80fd\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\u641c\u7d22\u90e8\u5206\u8f93\u5165\u4e0a\u8ff0\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u66ff\u6362\u90e8\u5206\u7559\u7a7a\u3002<\/p>\n<p>\u6267\u884c\u66ff\u6362\u540e\uff0c\u5373\u53ef\u5b9e\u73b0\u5c06\u6587\u672c\u81ea\u52a8\u5206\u6bb5\u4e3a\u6bcf\u884c40\u4e2a\u5b57\u7b26\u7684\u683c\u5f0f\u3002<\/p>\n<p>\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300a\u5982\u4f55\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5b9e\u73b0\u5c0f\u8bf4\u5206\u6bb5\u6392\u7248\uff1f \u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   MySQL \u5173\u8054\u67e5\u8be2\u5206\u7ec4\u76ee\u7684\uff1a\u4e3a\u4ec0\u4e48\u4f7f\u7528 `p2.product_type = p1.product_type` \u8fdb\u884c\u5206\u7ec4\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5b9e\u73b0\u5c0f\u8bf4\u5206\u6bb5\u6392\u7248\uff1f \u5728\u6587\u7ae0\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u7c73\u4e91\u5c31\u6574\u7406\u5206\u4eab\u300a\u5982\u4f55\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5b9e\u73b0\u5c0f\u8bf4\u5206\u6bb5\u6392\u7248\uff1f \u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002 \u6b63\u5219\u8868\u8fbe\u5f0f\u5b9e\u73b0\u5c0f\u8bf4\u5206\u6bb5\u6392\u7248\u7684\u5229\u5668 \u5728\u5c0f\u8bf4\u6392\u7248\u4e2d\uff0c\u63a7\u5236\u6bcf\u884c\u663e\u793a\u5b57\u7b26\u6570\u91cf\u5e76\u5408\u7406\u5206\u6bb5\u662f\u5e38\u89c1\u9700\u6c42\u3002\u5176\u4e2d\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\u51ed\u501f\u5176\u5f3a\u5927\u7684\u6587\u672c\u5904\u7406\u80fd\u529b\u6210\u4e3a\u8fd9\u4e00\u4efb\u52a1\u7684\u7406\u60f3\u89e3\u51b3\u65b9\u6848\u3002 \u8981\u5b9e\u73b0\u6bcf\u884c\u9650\u5b9a40\u4e2a\u5b57\u7b26\uff0c\u81ea\u52a8\u5206\u6bb5\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u6b63\u5219\u8868\u8fbe\u5f0f\uff1a .{30,49}[\uff0c\u3002]|.{40} \u6b63\u5219\u8868\u8fbe\u5f0f\u8be6\u89e3\uff1a .{30,49}\uff1a[\uff1a\u5339\u914d30\u81f349\u4e2a\u4efb\u610f\u5b57\u7b26\u5e8f\u5217\u3002 [\uff0c\u3002]\uff1a\u5339\u914d\u9017\u53f7\u6216\u53e5\u53f7\u3002 |.{40}\uff1a\u6216\u64cd\u4f5c\u7b26\uff1b\u5339\u914d40\u4e2a\u4efb\u610f\u5b57\u7b26\u5e8f\u5217\u3002 \u5de5\u4f5c\u539f\u7406\uff1a \u8be5\u6b63\u5219\u8868\u8fbe\u5f0f\u4f18\u5148\u5339\u914d\u6bcf\u884c\u4e2d\u4ecb\u4e8e30\u81f349\u4e2a\u5b57\u7b26\u4e4b\u95f4\uff0c\u4e14\u4ee5\u9017\u53f7\u6216\u53e5\u53f7\u7ed3\u5c3e\u7684\u5185\u5bb9\u3002\u5982\u679c\u6709\u5339\u914d\u9879\uff0c\u5219\u5728\u5339\u914d\u9879\u540e\u8fdb\u884c\u5206\u6bb5\u6362\u884c\u3002 \u5982\u679c\u6ca1\u6709\u4ee5\u9017\u53f7\u6216\u53e5\u53f7\u7ed3\u5c3e\u7684\u5339\u914d\u9879\uff0c\u5219\u5339\u914d\u6bcf\u884c\u524d40\u4e2a\u5b57\u7b26\uff0c\u5e76\u5728\u7b2c41\u4e2a\u5b57\u7b26\u5904\u8fdb\u884c\u5206\u6bb5\u6362\u884c\u3002 \u4f7f\u7528\u793a\u4f8b\uff1a \u5728Notepad++\u7f16\u8f91\u5668\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u67e5\u627e\u5e76\u66ff\u6362\u529f\u80fd\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\u641c\u7d22\u90e8\u5206\u8f93\u5165\u4e0a\u8ff0\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u66ff\u6362\u90e8\u5206\u7559\u7a7a\u3002 \u6267\u884c\u66ff\u6362\u540e\uff0c\u5373\u53ef\u5b9e\u73b0\u5c06\u6587\u672c\u81ea\u52a8\u5206\u6bb5\u4e3a\u6bcf\u884c40\u4e2a\u5b57\u7b26\u7684\u683c\u5f0f\u3002 \u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300a\u5982\u4f55\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5b9e\u73b0\u5c0f\u8bf4\u5206\u6bb5\u6392\u7248\uff1f \u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002 MySQL \u5173\u8054\u67e5\u8be2\u5206\u7ec4\u76ee\u7684\uff1a\u4e3a\u4ec0\u4e48\u4f7f\u7528 `p2.product_type = p1.product_type` \u8fdb\u884c\u5206\u7ec4\uff1f<\/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-53472","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53472","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=53472"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53472\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=53472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=53472"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=53472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}