{"id":6466,"date":"2024-11-14T11:13:54","date_gmt":"2024-11-14T03:13:54","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6466\/"},"modified":"2024-11-14T11:13:54","modified_gmt":"2024-11-14T03:13:54","slug":"mysql%e6%95%b0%e6%8d%ae%e5%ba%93%e6%80%8e%e4%b9%88%e6%9b%b4%e6%96%b0%e6%95%b0%e6%8d%ae%e5%ba%93","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6466\/","title":{"rendered":"mysql\u6570\u636e\u5e93\u600e\u4e48\u66f4\u65b0\u6570\u636e\u5e93"},"content":{"rendered":"

\n mysql \u4e2d\u66f4\u65b0\u6570\u636e\u4f7f\u7528 update \u8bed\u53e5\u3002\u6b65\u9aa4\u5305\u62ec\uff1a\u786e\u5b9a\u8981\u66f4\u65b0\u7684\u8868\u548c\u5217\u3002\u4f7f\u7528 set \u5b50\u53e5\u8bbe\u7f6e\u65b0\u503c\u3002\u4f7f\u7528 where \u5b50\u53e5\u6307\u5b9a\u8981\u66f4\u65b0\u7684\u884c\u7684\u6761\u4ef6\u3002\n<\/p><\/blockquote>\n

\"mysql\u6570\u636e\u5e93\u600e\u4e48\u66f4\u65b0\u6570\u636e\u5e93\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5728 MySQL \u6570\u636e\u5e93\u4e2d\u66f4\u65b0\u6570\u636e<\/strong><\/p>\n

\u66f4\u65b0 MySQL \u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u9700\u8981\u4f7f\u7528 UPDATE \u8bed\u53e5\u3002\u5176\u4e00\u822c\u8bed\u6cd5\u4e3a\uff1a<\/p>\n

UPDATE table_name\nSET column_name1 = new_value1, column_name2 = new_value2, ...\nWHERE condition;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6b65\u9aa4\uff1a<\/strong><\/p>\n
    \n
  1.  \u786e\u5b9a\u8981\u66f4\u65b0\u7684\u8868\u548c\u5217\uff1a<\/strong>\u6307\u5b9a\u8981\u66f4\u65b0\u7684\u8868\u540d (table_name) \u548c\u5217\u540d (column_name)\u3002<\/li>\n
  2.  \u8bbe\u7f6e\u65b0\u503c\uff1a<\/strong>\u4f7f\u7528 SET \u5b50\u53e5\u6307\u5b9a\u8981\u8bbe\u7f6e\u7684\u65b0\u503c\u3002<\/li>\n
  3.  \u786e\u5b9a\u8981\u66f4\u65b0\u7684\u884c\uff1a<\/strong>\u4f7f\u7528 WHERE \u5b50\u53e5\u6307\u5b9a\u8981\u66f4\u65b0\u7684\u884c\u7684\u6761\u4ef6\u3002<\/li>\n<\/ol>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    \u66f4\u65b0\u540d\u4e3a customers \u8868\u4e2d name \u5b57\u6bb5\u4e3a “John Doe”\uff0c\u4e14 id \u4e3a 1 \u7684\u8bb0\u5f55\uff1a<\/p>\n
    UPDATE customers\nSET name = \"John Doe\"\nWHERE id = 1;<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n
      \n
    • \u786e\u4fdd WHERE \u5b50\u53e5\u5305\u542b\u552f\u4e00\u6807\u8bc6\u7b26\uff0c\u4ee5\u907f\u514d\u610f\u5916\u66f4\u65b0\u591a\u4e2a\u8bb0\u5f55\u3002<\/li>\n
    • \u4f7f\u7528\u53c2\u6570\u5316\u67e5\u8be2\u6216\u8f6c\u4e49\u8f93\u5165\u503c\u4ee5\u9632\u6b62 SQL \u6ce8\u5165\u653b\u51fb\u3002<\/li>\n
    • \u5728\u66f4\u65b0\u6570\u636e\u4e4b\u524d\uff0c\u6700\u597d\u521b\u5efa\u4e00\u4e2a\u5907\u4efd\uff0c\u4ee5\u9632\u4e22\u5931\u6570\u636e\u3002<\/li>\n
    • \u63d0\u4ea4\u4e8b\u52a1\u4ee5\u6c38\u4e45\u66f4\u65b0\u6570\u636e\u5e93\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662f\u6570\u636e\u5e93\u600e\u4e48\u66f4\u65b0\u6570\u636e\u5e93\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":"
      mysql \u4e2d\u66f4\u65b0\u6570\u636e\u4f7f\u7528 update \u8bed\u53e5\u3002\u6b65\u9aa4\u5305\u62ec\uff1a\u786e\u5b9a\u8981\u66f4\u65b0\u7684\u8868\u548c\u5217\u3002\u4f7f\u7528 set \u5b50\u53e5\u8bbe\u7f6e\u65b0\u503c\u3002\u4f7f\u7528 where \u5b50\u53e5\u6307\u5b9a\u8981\u66f4\u65b0\u7684\u884c\u7684\u6761\u4ef6\u3002 \u5982\u4f55\u5728 MySQL \u6570\u636e\u5e93\u4e2d\u66f4\u65b0\u6570\u636e \u66f4\u65b0 MySQL \u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u9700\u8981\u4f7f\u7528 UPDATE \u8bed\u53e5\u3002\u5176\u4e00\u822c\u8bed\u6cd5\u4e3a\uff1a UPDATE table_name SET column_name1 = new_value1, column_name2 = new_value2, … WHERE condition; \u767b\u5f55\u540e\u590d\u5236 \u6b65\u9aa4\uff1a \u786e\u5b9a\u8981\u66f4\u65b0\u7684\u8868\u548c\u5217\uff1a\u6307\u5b9a\u8981\u66f4\u65b0\u7684\u8868\u540d (table_name) \u548c\u5217\u540d (column_name)\u3002 \u8bbe\u7f6e\u65b0\u503c\uff1a\u4f7f\u7528 SET \u5b50\u53e5\u6307\u5b9a\u8981\u8bbe\u7f6e\u7684\u65b0\u503c\u3002 \u786e\u5b9a\u8981\u66f4\u65b0\u7684\u884c\uff1a\u4f7f\u7528 WHERE \u5b50\u53e5\u6307\u5b9a\u8981\u66f4\u65b0\u7684\u884c\u7684\u6761\u4ef6\u3002 \u793a\u4f8b\uff1a \u66f4\u65b0\u540d\u4e3a customers \u8868\u4e2d name \u5b57\u6bb5\u4e3a “John Doe”\uff0c\u4e14 id \u4e3a 1 \u7684\u8bb0\u5f55\uff1a UPDATE customers SET […]<\/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-6466","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6466","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=6466"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6466\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6466"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}