{"id":48625,"date":"2024-12-02T15:19:01","date_gmt":"2024-12-02T07:19:01","guid":{"rendered":"https:\/\/fwq.ai\/blog\/48625\/"},"modified":"2024-12-02T15:19:01","modified_gmt":"2024-12-02T07:19:01","slug":"mysql-%e6%9b%b4%e6%96%b0%e4%b8%a4%e5%bc%a0%e8%a1%a8%e5%ad%97%e6%ae%b5%e6%97%b6%e5%87%ba%e7%8e%b0%e6%97%a0%e6%95%88%e9%94%99%e8%af%af%ef%bc%8c%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/48625\/","title":{"rendered":"MySQL \u66f4\u65b0\u4e24\u5f20\u8868\u5b57\u6bb5\u65f6\u51fa\u73b0\u201c\u65e0\u6548\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>MySQL \u66f4\u65b0\u4e24\u5f20\u8868\u5b57\u6bb5\u65f6\u51fa\u73b0\u201c\u65e0\u6548\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f<\/h1>\n<p>\u54c8\u55bd\uff01\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aMySQL \u66f4\u65b0\u4e24\u5f20\u8868\u5b57\u6bb5\u65f6\u51fa\u73b0\u201c\u65e0\u6548\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\u300b<\/span>\uff0c\u60f3\u5fc5\u5927\u5bb6\u5e94\u8be5\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u90fd\u4e0d\u964c\u751f\u5427\uff0c\u90a3\u4e48\u9605\u8bfb\u672c\u6587\u5c31\u90fd\u4e0d\u4f1a\u5f88\u56f0\u96be\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u82e5\u662f\u4f60\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\uff0c\u5343\u4e07\u522b\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u4f60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241029\/173017064767204f178e757.jpg\" class=\"aligncenter\" title=\"MySQL \u66f4\u65b0\u4e24\u5f20\u8868\u5b57\u6bb5\u65f6\u51fa\u73b0\u201c\u65e0\u6548\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\u63d2\u56fe\" alt=\"MySQL \u66f4\u65b0\u4e24\u5f20\u8868\u5b57\u6bb5\u65f6\u51fa\u73b0\u201c\u65e0\u6548\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\u63d2\u56fe\" \/><\/p>\n<p>\u5728 mysql \u4e2d\u901a\u8fc7\u5b50\u67e5\u8be2\u66f4\u65b0\u4e24\u5f20\u8868\u4e4b\u95f4\u7684\u5b57\u6bb5\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u201c\u65e0\u6548\u201d\u7684\u9519\u8bef\u3002<\/p>\n<p>\u95ee\u9898\u63cf\u8ff0\uff1a<\/p>\n<p>\u60a8\u5e0c\u671b\u4f7f\u7528 sql \u8bed\u53e5\u5c06\u8868 a \u4e2d\u7684 chapterid \u5b57\u6bb5\u66f4\u65b0\u4e3a\u8868 b \u4e2d\u7684 id \u5b57\u6bb5\uff0c\u5176\u4e2d courseid \u76f8\u540c\u3002\u4f46\u662f\uff0c\u4ee5\u4e0b sql \u8bed\u53e5\u4e0d\u8d77\u4f5c\u7528\uff1a<\/p>\n<pre>update cmf_course_lesson a,\n cmf_course_chapter b\nset a.chapterid = b.id\nwhere\n    a.courseid = b.courseid;<\/pre>\n<p>\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n<p>\u8981\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u9700\u8981\u5728 where \u6761\u4ef6\u4e2d\u6dfb\u52a0\u5bf9\u8868 a \u7684\u4e3b\u952e\uff08\u5728\u672c\u4f8b\u4e2d\u4e3a a.id\uff09\u3002mysql \u8fd0\u884c\u5728\u5b89\u5168\u66f4\u65b0\u6a21\u5f0f\u4e0b\uff0c\u8be5\u6a21\u5f0f\u8981\u6c42\u975e\u4e3b\u952e\u6761\u4ef6\u4e0b\u6267\u884c\u66f4\u65b0\u6216\u5220\u9664\u547d\u4ee4\u65f6\u5fc5\u987b\u5305\u542b\u4e3b\u952e\u6761\u4ef6\u3002<\/p>\n<p>\u4fee\u6539\u540e\u7684 sql \u8bed\u53e5\u5982\u4e0b\uff1a<\/p>\n<pre>UPDATE cmf_course_lesson a,\n cmf_course_chapter b\nSET a.chapterid = b.id\nWHERE\n    a.courseid = b.courseid AND A.id &gt; 0;<\/pre>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aMySQL \u66f4\u65b0\u4e24\u5f20\u8868\u5b57\u6bb5\u65f6\u51fa\u73b0\u201c\u65e0\u6548\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MySQL \u66f4\u65b0\u4e24\u5f20\u8868\u5b57\u6bb5\u65f6\u51fa\u73b0\u201c\u65e0\u6548\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f \u54c8\u55bd\uff01\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u300aMySQL \u66f4\u65b0\u4e24\u5f20\u8868\u5b57\u6bb5\u65f6\u51fa\u73b0\u201c\u65e0\u6548\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\u300b\uff0c\u60f3\u5fc5\u5927\u5bb6\u5e94\u8be5\u5bf9\u6587\u7ae0\u90fd\u4e0d\u964c\u751f\u5427\uff0c\u90a3\u4e48\u9605\u8bfb\u672c\u6587\u5c31\u90fd\u4e0d\u4f1a\u5f88\u56f0\u96be\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230\uff0c\u82e5\u662f\u4f60\u6b63\u5728\u5b66\u4e60\u6587\u7ae0\uff0c\u5343\u4e07\u522b\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u4f60\uff01 \u5728 mysql \u4e2d\u901a\u8fc7\u5b50\u67e5\u8be2\u66f4\u65b0\u4e24\u5f20\u8868\u4e4b\u95f4\u7684\u5b57\u6bb5\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u201c\u65e0\u6548\u201d\u7684\u9519\u8bef\u3002 \u95ee\u9898\u63cf\u8ff0\uff1a \u60a8\u5e0c\u671b\u4f7f\u7528 sql \u8bed\u53e5\u5c06\u8868 a \u4e2d\u7684 chapterid \u5b57\u6bb5\u66f4\u65b0\u4e3a\u8868 b \u4e2d\u7684 id \u5b57\u6bb5\uff0c\u5176\u4e2d courseid \u76f8\u540c\u3002\u4f46\u662f\uff0c\u4ee5\u4e0b sql \u8bed\u53e5\u4e0d\u8d77\u4f5c\u7528\uff1a update cmf_course_lesson a, cmf_course_chapter b set a.chapterid = b.id where a.courseid = b.courseid; \u89e3\u51b3\u65b9\u6848\uff1a \u8981\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u9700\u8981\u5728 where \u6761\u4ef6\u4e2d\u6dfb\u52a0\u5bf9\u8868 a \u7684\u4e3b\u952e\uff08\u5728\u672c\u4f8b\u4e2d\u4e3a a.id\uff09\u3002mysql \u8fd0\u884c\u5728\u5b89\u5168\u66f4\u65b0\u6a21\u5f0f\u4e0b\uff0c\u8be5\u6a21\u5f0f\u8981\u6c42\u975e\u4e3b\u952e\u6761\u4ef6\u4e0b\u6267\u884c\u66f4\u65b0\u6216\u5220\u9664\u547d\u4ee4\u65f6\u5fc5\u987b\u5305\u542b\u4e3b\u952e\u6761\u4ef6\u3002 \u4fee\u6539\u540e\u7684 sql \u8bed\u53e5\u5982\u4e0b\uff1a UPDATE cmf_course_lesson a, cmf_course_chapter b SET a.chapterid = [&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-48625","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48625","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=48625"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48625\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=48625"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=48625"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=48625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}