{"id":5666,"date":"2024-11-14T10:03:15","date_gmt":"2024-11-14T02:03:15","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5666\/"},"modified":"2024-11-14T10:03:15","modified_gmt":"2024-11-14T02:03:15","slug":"sql-update%e8%af%ad%e5%8f%a5%e6%80%8e%e4%b9%88%e5%86%99","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5666\/","title":{"rendered":"sql update\u8bed\u53e5\u600e\u4e48\u5199"},"content":{"rendered":"

\n sql update \u8bed\u53e5\u7528\u4e8e\u66f4\u65b0\u8868\u4e2d\u73b0\u6709\u8bb0\u5f55\u7684\u6570\u636e\uff0c\u8bed\u6cd5\u4e3a update table_name set column_name1 = value1, column_name2 = value2, … where condition\u3002\u8be5\u8bed\u53e5\u5c06\u6307\u5b9a\u8868\u4e2d\u6ee1\u8db3 where \u6761\u4ef6\u7684\u8bb0\u5f55\u7684\u6307\u5b9a\u5217\u66f4\u65b0\u4e3a\u6307\u5b9a\u7684\u503c\u3002\u5982\u679c\u672a\u6307\u5b9a where \u6761\u4ef6\uff0c\u5219\u66f4\u65b0\u6240\u6709\u8bb0\u5f55\u3002\n<\/p><\/blockquote>\n

\"sql<\/p>\n

SQL UPDATE \u8bed\u53e5<\/strong><\/p>\n

\u76ee\u7684\uff1a<\/strong>\u66f4\u65b0\u8868\u4e2d\u73b0\u6709\u8bb0\u5f55\u7684\u6570\u636e\u3002<\/p>\n

\u8bed\u6cd5\uff1a<\/strong><\/p>\n

UPDATE table_name\nSET column_name1 = value1, column_name2 = value2, ...\nWHERE condition;<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u53c2\u6570\uff1a<\/strong><\/p>\n
    \n
  •  table_name\uff1a<\/strong>\u8981\u66f4\u65b0\u6570\u636e\u7684\u8868\u540d\u3002<\/li>\n
  •  column_name1, column_name2, …\uff1a<\/strong>\u8981\u66f4\u65b0\u7684\u5217\u540d\u3002<\/li>\n
  •  value1, value2, …\uff1a<\/strong>\u8981\u66f4\u65b0\u7684\u5217\u7684\u65b0\u503c\u3002<\/li>\n
  •  WHERE condition\uff1a<\/strong>\u53ef\u9009\u9879\uff0c\u6307\u5b9a\u66f4\u65b0\u54ea\u4e9b\u8bb0\u5f55\u3002\u5982\u679c\u6ca1\u6709\u6307\u5b9a\uff0c\u5219\u66f4\u65b0\u6240\u6709\u8bb0\u5f55\u3002<\/li>\n<\/ul>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    \u66f4\u65b0\u8868 “customers” \u4e2d\u5ba2\u6237 “John Doe” \u7684\u7535\u5b50\u90ae\u4ef6\u5730\u5740\uff1a<\/p>\n
    UPDATE customers\nSET email = 'john.doe@example.com'\nWHERE name = 'John Doe';<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u6ce8\u610f\uff1a<\/strong><\/p>\n
      \n
    • \u66f4\u65b0\u8bed\u53e5\u53ea\u5f71\u54cd\u4e0e WHERE \u6761\u4ef6\u5339\u914d\u7684\u8bb0\u5f55\u3002\u5982\u679c\u6ca1\u6709\u6307\u5b9a WHERE \u6761\u4ef6\uff0c\u5219\u66f4\u65b0\u6240\u6709\u8bb0\u5f55\u3002<\/li>\n
    • \u5982\u679c\u6307\u5b9a\u4e86\u591a\u4e2a SET \u5b50\u53e5\uff0c\u5219\u503c\u6309\u5217\u7684\u6307\u5b9a\u987a\u5e8f\u66f4\u65b0\u3002<\/li>\n
    • \u53ef\u4ee5\u4f7f\u7528\u8fd0\u7b97\u7b26\uff08\u5982 “+=” \u548c “-=”) \u5bf9\u5217\u503c\u8fdb\u884c\u589e\u91cf\u6216\u51cf\u91cf\u66f4\u65b0\u3002<\/li>\n<\/ul>\n
      \u9ad8\u7ea7\u7528\u6cd5\uff1a<\/strong><\/p>\n
        \n
      •  JOIN \u5b50\u53e5\uff1a<\/strong>\u5141\u8bb8\u4ece\u591a\u4e2a\u8868\u66f4\u65b0\u6570\u636e\u3002<\/li>\n
      •  \u5b50\u67e5\u8be2\uff1a<\/strong>\u5141\u8bb8\u4f7f\u7528\u5176\u4ed6\u67e5\u8be2\u7684\u7ed3\u679c\u4f5c\u4e3a\u66f4\u65b0\u503c\u3002<\/li>\n
      •  \u89e6\u53d1\u5668\uff1a<\/strong>\u53ef\u4ee5\u521b\u5efa\u89e6\u53d1\u5668\u6765\u81ea\u52a8\u6267\u884c\u66f4\u65b0\u64cd\u4f5c\uff0c\u4f8b\u5982\u5728\u63d2\u5165\u6216\u66f4\u65b0\u8bb0\u5f55\u65f6\u3002<\/li>\n<\/ul>\n
        \u4ee5\u4e0a\u5c31\u662fsql update\u8bed\u53e5\u600e\u4e48\u5199\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":"
        sql update \u8bed\u53e5\u7528\u4e8e\u66f4\u65b0\u8868\u4e2d\u73b0\u6709\u8bb0\u5f55\u7684\u6570\u636e\uff0c\u8bed\u6cd5\u4e3a update table_name set column_name1 = value1, column_name2 = value2, … where condition\u3002\u8be5\u8bed\u53e5\u5c06\u6307\u5b9a\u8868\u4e2d\u6ee1\u8db3 where \u6761\u4ef6\u7684\u8bb0\u5f55\u7684\u6307\u5b9a\u5217\u66f4\u65b0\u4e3a\u6307\u5b9a\u7684\u503c\u3002\u5982\u679c\u672a\u6307\u5b9a where \u6761\u4ef6\uff0c\u5219\u66f4\u65b0\u6240\u6709\u8bb0\u5f55\u3002 SQL UPDATE \u8bed\u53e5 \u76ee\u7684\uff1a\u66f4\u65b0\u8868\u4e2d\u73b0\u6709\u8bb0\u5f55\u7684\u6570\u636e\u3002 \u8bed\u6cd5\uff1a UPDATE table_name SET column_name1 = value1, column_name2 = value2, … WHERE condition; \u767b\u5f55\u540e\u590d\u5236 \u53c2\u6570\uff1a table_name\uff1a\u8981\u66f4\u65b0\u6570\u636e\u7684\u8868\u540d\u3002 column_name1, column_name2, …\uff1a\u8981\u66f4\u65b0\u7684\u5217\u540d\u3002 value1, value2, …\uff1a\u8981\u66f4\u65b0\u7684\u5217\u7684\u65b0\u503c\u3002 WHERE condition\uff1a\u53ef\u9009\u9879\uff0c\u6307\u5b9a\u66f4\u65b0\u54ea\u4e9b\u8bb0\u5f55\u3002\u5982\u679c\u6ca1\u6709\u6307\u5b9a\uff0c\u5219\u66f4\u65b0\u6240\u6709\u8bb0\u5f55\u3002 \u793a\u4f8b\uff1a \u66f4\u65b0\u8868 “customers” \u4e2d\u5ba2\u6237 “John Doe” \u7684\u7535\u5b50\u90ae\u4ef6\u5730\u5740\uff1a UPDATE […]<\/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-5666","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5666","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=5666"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5666\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}