{"id":7453,"date":"2024-11-14T11:06:35","date_gmt":"2024-11-14T03:06:35","guid":{"rendered":"https:\/\/fwq.ai\/blog\/7453\/"},"modified":"2024-11-14T11:06:35","modified_gmt":"2024-11-14T03:06:35","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8mysql-find_in_set%e5%87%bd%e6%95%b0%e6%9f%a5%e8%af%a2%e5%ad%97%e6%ae%b5%e5%8c%85%e5%90%ab%e6%8c%87%e5%ae%9a%e5%80%bc%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/7453\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528MySQL find_in_set\u51fd\u6570\u67e5\u8be2\u5b57\u6bb5\u5305\u542b\u6307\u5b9a\u503c\uff1f"},"content":{"rendered":"

\"\u5982\u4f55\u4f7f\u7528MySQL<\/p>\n

\u5229\u7528 \u7684 find_in_set \u51fd\u6570\u67e5\u8be2\u5b57\u6bb5\u5305\u542b\u6307\u5b9a\u503c<\/strong><\/p>\n

\u5728 mysql \u6570\u636e\u5e93\u4e2d\uff0c\u5f53\u8868\u5b57\u6bb5\u5305\u542b\u4ee5\u9017\u53f7\u5206\u9694\u7684\u591a\u4e2a\u503c\u65f6\uff0c\u6211\u4eec\u65e0\u6cd5\u50cf\u6a21\u7cca\u67e5\u8be2\u90a3\u6837\u76f4\u63a5\u627e\u5230\u5339\u914d\u6307\u5b9a\u503c\u7684\u8bb0\u5f55\u3002\u8fd9\u65f6\uff0cfind_in_set \u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u89e3\u51b3\u6b64\u95ee\u9898\u3002<\/p>\n

\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u8868\u540d\u4e3a “test”\uff0c\u5176\u4e2d\u5305\u542b\u4ee5\u4e0b “ids” \u5b57\u6bb5\u503c\uff1a<\/p>\n

| ids |\n|---|---|\n| null |\n| 350 |\n| 34,35,36,37 |<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5982\u679c\u6211\u4eec\u9700\u8981\u67e5\u627e\u5305\u542b\u6570\u5b57 “35” \u7684\u8bb0\u5f55\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\uff1a<\/p>\n
select * from test where find_in_set(35, ids)<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
find_in_set \u51fd\u6570\u5c06 “35” \u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u53c2\u6570\uff0c\u5c06 “ids” \u5b57\u6bb5\u503c\u4f5c\u4e3a\u7b2c\u4e8c\u4e2a\u53c2\u6570\u3002\u8be5\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u6570\u5b57\uff0c\u8868\u793a “35” \u5728 “ids” \u5b57\u6bb5\u503c\u4e2d\u7684\u4f4d\u7f6e\uff0c\u5982\u679c\u4e0d\u5b58\u5728\u5219\u8fd4\u56de 0\u3002<\/p>\n
\u4e0a\u9762\u5199\u51fa\u7684\u67e5\u8be2\u5b9e\u9645\u4e0a\u5bfb\u627e “ids” \u5b57\u6bb5\u503c\u4e2d\u5305\u542b “35” \u7684\u8bb0\u5f55\uff0c\u56e0\u6b64\u5b83\u5c06\u8fd4\u56de\u4ee5\u4e0b\u7ed3\u679c\uff1a<\/p>\n
| ids |\n|---|---|\n| 34,35,36,37 |<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8bf7\u6ce8\u610f\uff0c\u5373\u4f7f “350” \u4e5f\u5305\u542b\u6570\u5b57 “35”\uff0c\u4f46\u5b83\u4e0d\u5305\u542b\u5728\u7531\u9017\u53f7\u5206\u9694\u7684\u7eaf\u6570\u5b57\u5b57\u7b26\u4e32\u4e2d\uff0c\u56e0\u6b64 find_in_set \u51fd\u6570\u4e0d\u4f1a\u5c06\u5176\u5339\u914d\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528MySQL find_in_set\u51fd\u6570\u67e5\u8be2\u5b57\u6bb5\u5305\u542b\u6307\u5b9a\u503c\uff1f\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":"
\u5229\u7528 \u7684 find_in_set \u51fd\u6570\u67e5\u8be2\u5b57\u6bb5\u5305\u542b\u6307\u5b9a\u503c \u5728 mysql \u6570\u636e\u5e93\u4e2d\uff0c\u5f53\u8868\u5b57\u6bb5\u5305\u542b\u4ee5\u9017\u53f7\u5206\u9694\u7684\u591a\u4e2a\u503c\u65f6\uff0c\u6211\u4eec\u65e0\u6cd5\u50cf\u6a21\u7cca\u67e5\u8be2\u90a3\u6837\u76f4\u63a5\u627e\u5230\u5339\u914d\u6307\u5b9a\u503c\u7684\u8bb0\u5f55\u3002\u8fd9\u65f6\uff0cfind_in_set \u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u89e3\u51b3\u6b64\u95ee\u9898\u3002 \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u8868\u540d\u4e3a “test”\uff0c\u5176\u4e2d\u5305\u542b\u4ee5\u4e0b “ids” \u5b57\u6bb5\u503c\uff1a | ids | |—|—| | null | | 350 | | 34,35,36,37 | \u767b\u5f55\u540e\u590d\u5236 \u5982\u679c\u6211\u4eec\u9700\u8981\u67e5\u627e\u5305\u542b\u6570\u5b57 “35” \u7684\u8bb0\u5f55\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\uff1a select * from test where find_in_set(35, ids) \u767b\u5f55\u540e\u590d\u5236 find_in_set \u51fd\u6570\u5c06 “35” \u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u53c2\u6570\uff0c\u5c06 “ids” \u5b57\u6bb5\u503c\u4f5c\u4e3a\u7b2c\u4e8c\u4e2a\u53c2\u6570\u3002\u8be5\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u6570\u5b57\uff0c\u8868\u793a “35” \u5728 “ids” \u5b57\u6bb5\u503c\u4e2d\u7684\u4f4d\u7f6e\uff0c\u5982\u679c\u4e0d\u5b58\u5728\u5219\u8fd4\u56de 0\u3002 \u4e0a\u9762\u5199\u51fa\u7684\u67e5\u8be2\u5b9e\u9645\u4e0a\u5bfb\u627e “ids” \u5b57\u6bb5\u503c\u4e2d\u5305\u542b “35” \u7684\u8bb0\u5f55\uff0c\u56e0\u6b64\u5b83\u5c06\u8fd4\u56de\u4ee5\u4e0b\u7ed3\u679c\uff1a | ids […]<\/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-7453","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/7453","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=7453"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/7453\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=7453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=7453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=7453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}