{"id":26208,"date":"2024-11-24T15:41:42","date_gmt":"2024-11-24T07:41:42","guid":{"rendered":"https:\/\/fwq.ai\/blog\/26208\/"},"modified":"2024-11-24T15:41:42","modified_gmt":"2024-11-24T07:41:42","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-mysql-%e7%9a%84-find_in_set-%e5%87%bd%e6%95%b0%e7%b2%be%e7%a1%ae%e5%8c%b9%e9%85%8d%e5%8c%85%e5%90%ab%e7%89%b9%e5%ae%9a%e5%80%bc%e7%9a%84%e5%ad%97%e6%ae%b5-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/26208\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 MySQL \u7684 find_in_set() \u51fd\u6570\u7cbe\u786e\u5339\u914d\u5305\u542b\u7279\u5b9a\u503c\u7684\u5b57\u6bb5\uff1f"},"content":{"rendered":"

\"\u5982\u4f55\u4f7f\u7528<\/p>\n

\u7cbe\u786e\u5339\u914d\u5305\u542b\u7279\u5b9a\u503c\u7684\u5b57\u6bb5<\/strong><\/p>\n

\u53ef\u4ee5\u4f7f\u7528 \u7684 find_in_set() \u51fd\u6570\uff0c\u4ee5\u786e\u5b9a\u67d0\u4e2a\u5b57\u6bb5\u7684\u503c\u662f\u5426\u5305\u542b\u6307\u5b9a\u7684\u5b50\u5b57\u7b26\u4e32\u3002\u8fd9\u5bf9\u4e8e\u67e5\u627e\u5305\u542b\u9017\u53f7\u5206\u9694\u503c\u7684\u5b57\u6bb5\u7279\u522b\u6709\u7528\uff0c\u56e0\u4e3a\u6a21\u7cca\u67e5\u8be2\u65e0\u6cd5\u51c6\u786e\u5339\u914d\u8fd9\u4e9b\u503c\u3002<\/p>\n

\u4f7f\u7528 find_in_set() \u67e5\u8be2<\/strong><\/p>\n

\u8981\u4f7f\u7528 find_in_set() \u51fd\u6570\uff0c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

select * from \u8868\u540d where find_in_set(\u5b50\u5b57\u7b26\u4e32, \u5b57\u6bb5\u540d) > 0<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
    \n
  • \u5b50\u5b57\u7b26\u4e32 \u662f\u8981\u67e5\u627e\u7684\u7279\u5b9a\u503c\u3002<\/li>\n
  • \u5b57\u6bb5\u540d \u662f\u8981\u641c\u7d22\u7684\u5b57\u6bb5\u540d\u79f0\u3002<\/li>\n<\/ul>\n
    \u5e94\u7528\u4e8e\u4f60\u7684\u95ee\u9898<\/strong><\/p>\n
    \u5728\u4f60\u7684\u793a\u4f8b\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 find_in_set() \u51fd\u6570\u4ee5\u6570\u5b57 35 \u4e3a\u76ee\u6807\u67e5\u627e ids \u5b57\u6bb5\uff1a<\/p>\n
    SELECT * FROM \u8868\u540d WHERE FIND_IN_SET(35, ids) > 0<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8be5\u67e5\u8be2\u5c06\u8fd4\u56de\u6240\u6709 ids \u5b57\u6bb5\u5305\u542b\u5b50\u5b57\u7b26\u4e32 “35” \u7684\u884c\uff0c\u5e76\u4e14\u53ea\u5305\u542b\u7b26\u5408\u6761\u4ef6 “34,35,36,37” \u7684\u884c\uff0c\u800c\u4e0d\u5305\u542b “350” \u884c\u3002<\/p>\n
    \u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528 MySQL \u7684 find_in_set() \u51fd\u6570\u7cbe\u786e\u5339\u914d\u5305\u542b\u7279\u5b9a\u503c\u7684\u5b57\u6bb5\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":"
    \u7cbe\u786e\u5339\u914d\u5305\u542b\u7279\u5b9a\u503c\u7684\u5b57\u6bb5 \u53ef\u4ee5\u4f7f\u7528 \u7684 find_in_set() \u51fd\u6570\uff0c\u4ee5\u786e\u5b9a\u67d0\u4e2a\u5b57\u6bb5\u7684\u503c\u662f\u5426\u5305\u542b\u6307\u5b9a\u7684\u5b50\u5b57\u7b26\u4e32\u3002\u8fd9\u5bf9\u4e8e\u67e5\u627e\u5305\u542b\u9017\u53f7\u5206\u9694\u503c\u7684\u5b57\u6bb5\u7279\u522b\u6709\u7528\uff0c\u56e0\u4e3a\u6a21\u7cca\u67e5\u8be2\u65e0\u6cd5\u51c6\u786e\u5339\u914d\u8fd9\u4e9b\u503c\u3002 \u4f7f\u7528 find_in_set() \u67e5\u8be2 \u8981\u4f7f\u7528 find_in_set() \u51fd\u6570\uff0c\u8bed\u6cd5\u5982\u4e0b\uff1a select * from \u8868\u540d where find_in_set(\u5b50\u5b57\u7b26\u4e32, \u5b57\u6bb5\u540d) > 0 \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a \u5b50\u5b57\u7b26\u4e32 \u662f\u8981\u67e5\u627e\u7684\u7279\u5b9a\u503c\u3002 \u5b57\u6bb5\u540d \u662f\u8981\u641c\u7d22\u7684\u5b57\u6bb5\u540d\u79f0\u3002 \u5e94\u7528\u4e8e\u4f60\u7684\u95ee\u9898 \u5728\u4f60\u7684\u793a\u4f8b\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 find_in_set() \u51fd\u6570\u4ee5\u6570\u5b57 35 \u4e3a\u76ee\u6807\u67e5\u627e ids \u5b57\u6bb5\uff1a SELECT * FROM \u8868\u540d WHERE FIND_IN_SET(35, ids) > 0 \u767b\u5f55\u540e\u590d\u5236 \u8be5\u67e5\u8be2\u5c06\u8fd4\u56de\u6240\u6709 ids \u5b57\u6bb5\u5305\u542b\u5b50\u5b57\u7b26\u4e32 “35” \u7684\u884c\uff0c\u5e76\u4e14\u53ea\u5305\u542b\u7b26\u5408\u6761\u4ef6 “34,35,36,37” \u7684\u884c\uff0c\u800c\u4e0d\u5305\u542b “350” \u884c\u3002 \u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528 MySQL […]<\/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-26208","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/26208","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=26208"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/26208\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=26208"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=26208"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=26208"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}