{"id":6523,"date":"2024-11-14T13:08:58","date_gmt":"2024-11-14T05:08:58","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6523\/"},"modified":"2024-11-14T13:08:58","modified_gmt":"2024-11-14T05:08:58","slug":"mysql%e6%95%b0%e6%8d%ae%e5%ba%93%e6%80%8e%e4%b9%88%e5%88%a0%e9%99%a4%e4%b8%bb%e9%94%ae","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6523\/","title":{"rendered":"mysql\u6570\u636e\u5e93\u600e\u4e48\u5220\u9664\u4e3b\u952e"},"content":{"rendered":"

\n \u5220\u9664 mysql \u6570\u636e\u5e93\u4e3b\u952e\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a\u5907\u4efd\u6570\u636e\u5e93\u3002\u53d6\u6d88\u5f53\u524d\u4e3b\u952e\u7ea6\u675f\u3002\u5982\u679c\u9700\u8981\uff0c\u6dfb\u52a0\u4e00\u4e2a\u65b0\u4e3b\u952e\u3002\u8bf7\u6ce8\u610f\uff0c\u5220\u9664\u4e3b\u952e\u53ef\u80fd\u4f1a\u5f71\u54cd\u6570\u636e\u5e93\u7684\u5b8c\u6574\u6027\uff0c\u5e76\u4e14\u67d0\u4e9b\u6570\u636e\u5e93\u5f15\u64ce\u4e0d\u652f\u6301\u6b64\u64cd\u4f5c\u3002\n<\/p><\/blockquote>\n

\"mysql\u6570\u636e\u5e93\u600e\u4e48\u5220\u9664\u4e3b\u952e\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5220\u9664 MySQL \u6570\u636e\u5e93\u4e3b\u952e<\/strong><\/p>\n

\u4e3b\u952e\u662f\u6570\u636e\u5e93\u8868\u4e2d\u552f\u4e00\u6807\u8bc6\u6bcf\u884c\u7684\u5217\uff0c\u5b83\u53ef\u786e\u4fdd\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u5220\u9664\u4e3b\u952e\u3002<\/p>\n

\u5220\u9664\u4e3b\u952e\u6b65\u9aa4\uff1a<\/strong><\/p>\n

    \n
  1. \u5907\u4efd\u6570\u636e\u5e93\uff1a<\/strong>\u5728\u8fdb\u884c\u4efb\u4f55\u6570\u636e\u5e93\u64cd\u4f5c\u4e4b\u524d\uff0c\u8bf7\u52a1\u5fc5\u5907\u4efd\u6570\u636e\u5e93\u4ee5\u9632\u3002<\/li>\n
  2. \n

    \u53d6\u6d88\u4e3b\u952e\u7ea6\u675f\uff1a<\/strong>\u4f7f\u7528\u4ee5\u4e0b SQL \u8bed\u53e5\u53d6\u6d88\u5f53\u524d\u4e3b\u952e\u7ea6\u675f\uff1a<\/p>\n

    ALTER TABLE table_name DROP PRIMARY KEY;<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/li>\n
  3. \n
    \u6dfb\u52a0\u65b0\u4e3b\u952e\uff1a<\/strong>\u5982\u679c\u9700\u8981\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8bed\u53e5\u6dfb\u52a0\u4e00\u4e2a\u65b0\u4e3b\u952e\uff1a<\/p>\n
    ALTER TABLE table_name ADD PRIMARY KEY (column_name);<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<\/ol>\n
    \u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n
      \n
    • \u5220\u9664\u4e3b\u952e\u53ef\u80fd\u4f1a\u5f71\u54cd\u6570\u636e\u5e93\u8868\u7684\u5b8c\u6574\u6027\u3002<\/li>\n
    • \u67d0\u4e9b\u6570\u636e\u5e93\u5f15\u64ce\u4e0d\u652f\u6301\u5220\u9664\u4e3b\u952e\u3002<\/li>\n
    • \u5728\u5220\u9664\u4e3b\u952e\u4e4b\u524d\uff0c\u8bf7\u786e\u4fdd\u60a8\u4e86\u89e3\u5176\u540e\u679c\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662f\u6570\u636e\u5e93\u600e\u4e48\u5220\u9664\u4e3b\u952e\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":"
      \u5220\u9664 mysql \u6570\u636e\u5e93\u4e3b\u952e\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a\u5907\u4efd\u6570\u636e\u5e93\u3002\u53d6\u6d88\u5f53\u524d\u4e3b\u952e\u7ea6\u675f\u3002\u5982\u679c\u9700\u8981\uff0c\u6dfb\u52a0\u4e00\u4e2a\u65b0\u4e3b\u952e\u3002\u8bf7\u6ce8\u610f\uff0c\u5220\u9664\u4e3b\u952e\u53ef\u80fd\u4f1a\u5f71\u54cd\u6570\u636e\u5e93\u7684\u5b8c\u6574\u6027\uff0c\u5e76\u4e14\u67d0\u4e9b\u6570\u636e\u5e93\u5f15\u64ce\u4e0d\u652f\u6301\u6b64\u64cd\u4f5c\u3002 \u5982\u4f55\u5220\u9664 MySQL \u6570\u636e\u5e93\u4e3b\u952e \u4e3b\u952e\u662f\u6570\u636e\u5e93\u8868\u4e2d\u552f\u4e00\u6807\u8bc6\u6bcf\u884c\u7684\u5217\uff0c\u5b83\u53ef\u786e\u4fdd\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u5220\u9664\u4e3b\u952e\u3002 \u5220\u9664\u4e3b\u952e\u6b65\u9aa4\uff1a \u5907\u4efd\u6570\u636e\u5e93\uff1a\u5728\u8fdb\u884c\u4efb\u4f55\u6570\u636e\u5e93\u64cd\u4f5c\u4e4b\u524d\uff0c\u8bf7\u52a1\u5fc5\u5907\u4efd\u6570\u636e\u5e93\u4ee5\u9632\u3002 \u53d6\u6d88\u4e3b\u952e\u7ea6\u675f\uff1a\u4f7f\u7528\u4ee5\u4e0b SQL \u8bed\u53e5\u53d6\u6d88\u5f53\u524d\u4e3b\u952e\u7ea6\u675f\uff1a ALTER TABLE table_name DROP PRIMARY KEY; \u767b\u5f55\u540e\u590d\u5236 \u6dfb\u52a0\u65b0\u4e3b\u952e\uff1a\u5982\u679c\u9700\u8981\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8bed\u53e5\u6dfb\u52a0\u4e00\u4e2a\u65b0\u4e3b\u952e\uff1a ALTER TABLE table_name ADD PRIMARY KEY (column_name); \u767b\u5f55\u540e\u590d\u5236 \u6ce8\u610f\u4e8b\u9879\uff1a \u5220\u9664\u4e3b\u952e\u53ef\u80fd\u4f1a\u5f71\u54cd\u6570\u636e\u5e93\u8868\u7684\u5b8c\u6574\u6027\u3002 \u67d0\u4e9b\u6570\u636e\u5e93\u5f15\u64ce\u4e0d\u652f\u6301\u5220\u9664\u4e3b\u952e\u3002 \u5728\u5220\u9664\u4e3b\u952e\u4e4b\u524d\uff0c\u8bf7\u786e\u4fdd\u60a8\u4e86\u89e3\u5176\u540e\u679c\u3002 \u4ee5\u4e0a\u5c31\u662f\u6570\u636e\u5e93\u600e\u4e48\u5220\u9664\u4e3b\u952e\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},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-6523","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6523","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=6523"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6523\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6523"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6523"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}