{"id":6356,"date":"2024-11-14T10:09:37","date_gmt":"2024-11-14T02:09:37","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6356\/"},"modified":"2024-11-14T10:09:37","modified_gmt":"2024-11-14T02:09:37","slug":"mysql%e8%87%aa%e5%a2%9e%e4%bd%9c%e7%94%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6356\/","title":{"rendered":"mysql\u81ea\u589e\u4f5c\u7528"},"content":{"rendered":"

\n \u81ea\u589e id \u662f mysql \u4e2d\u4e00\u79cd\u81ea\u52a8\u9012\u589e\u7684\u7279\u6b8a\u6570\u636e\u7c7b\u578b\uff0c\u7528\u4e8e\u751f\u6210\u552f\u4e00 id\uff0c\u9632\u6b62\u91cd\u590d\u5e76\u7b80\u5316\u6392\u5e8f\u3002\u5b83\u7684\u5de5\u4f5c\u539f\u7406\u5982\u4e0b\uff1amysql \u4f7f\u7528 “auto-increment” \u8ba1\u6570\u5668\u751f\u6210\u81ea\u589e id\u3002\u8ba1\u6570\u5668\u5b58\u50a8\u5728\u4e0e\u8868\u5173\u8054\u7684 .ibd \u6587\u4ef6\u4e2d\uff0c\u5373\u4f7f\u670d\u52a1\u5668\u91cd\u542f\u540e\u4e5f\u4e0d\u4f1a\u4e22\u5931\u3002\u63d2\u5165\u65b0\u8bb0\u5f55\u65f6\uff0c\u8ba1\u6570\u5668\u9012\u589e\u5e76\u5206\u914d\u7ed9 auto_increment \u5217\u3002\n<\/p><\/blockquote>\n

\"mysql\u81ea\u589e\u4f5c\u7528\u63d2\u56fe\"<\/p>\n

MySQL \u81ea\u589e ID \u7684\u5de5\u4f5c\u539f\u7406<\/strong><\/p>\n

\u4ec0\u4e48\u662f\u81ea\u589e ID\uff1f<\/strong><\/p>\n

\u81ea\u589e ID \u662f MySQL \u4e2d\u4e00\u79cd\u7279\u6b8a\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5b83\u4f1a\u968f\u7740\u65b0\u8bb0\u5f55\u7684\u63d2\u5165\u800c\u81ea\u52a8\u9012\u589e\u3002<\/p>\n

\u5982\u4f55\u4f7f\u7528\u81ea\u589e ID\uff1f<\/strong><\/p>\n

\u5728\u521b\u5efa\u8868\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7 AUTO_INCREMENT \u5173\u952e\u5b57\u6307\u5b9a\u81ea\u589e ID \u5217\u3002\u4f8b\u5982\uff1a<\/p>\n

CREATE TABLE my_table (\n  id INT NOT NULL AUTO_INCREMENT,\n  name VARCHAR(255)\n);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u81ea\u589e ID \u7684\u5de5\u4f5c\u539f\u7406<\/strong><\/p>\n
MySQL \u4f7f\u7528\u4e00\u4e2a\u540d\u4e3a “auto-increment” \u7684\u5185\u90e8\u8ba1\u6570\u5668\u6765\u751f\u6210\u81ea\u589e ID\u3002\u5f53\u63d2\u5165\u65b0\u8bb0\u5f55\u65f6\uff0cMySQL \u4f1a\u5c06\u8ba1\u6570\u5668\u9012\u589e\uff0c\u5e76\u5c06\u8be5\u503c\u5206\u914d\u7ed9 AUTO_INCREMENT \u5217\u3002<\/p>\n
\u8ba1\u6570\u5668\u7684\u5b58\u50a8<\/strong><\/p>\n
auto-increment \u8ba1\u6570\u5668\u5b58\u50a8\u5728 .ibd \u6587\u4ef6\u4e2d\uff0c\u8be5\u6587\u4ef6\u4e0e\u8868\u7684\u6570\u636e\u6587\u4ef6\u76f8\u5173\u8054\u3002\u8fd9\u610f\u5473\u7740\u8ba1\u6570\u5668\u5373\u4f7f\u670d\u52a1\u5668\u91cd\u542f\u540e\u4e5f\u4f1a\u4fdd\u7559\u3002<\/p>\n
\u81ea\u589e ID \u7684\u4f18\u70b9<\/strong><\/p>\n
    \n
  •  \u786e\u4fdd\u552f\u4e00\u6027\uff1a<\/strong>\u6bcf\u4e2a\u65b0\u8bb0\u5f55\u90fd\u5206\u914d\u4e86\u4e00\u4e2a\u552f\u4e00\u7684 ID\uff0c\u8fd9\u6709\u52a9\u4e8e\u9632\u6b62\u91cd\u590d\u3002<\/li>\n
  •  \u4fbf\u4e8e\u6392\u5e8f\uff1a<\/strong>\u81ea\u589e ID \u53ef\u4ee5\u7528\u4f5c\u8bb0\u5f55\u7684\u81ea\u7136\u6392\u5e8f\u987a\u5e8f\u3002<\/li>\n
  •  \u7b80\u5316\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\uff1a<\/strong>\u65e0\u9700\u624b\u52a8\u751f\u6210 ID\uff0c\u8fd9\u7b80\u5316\u4e86\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u3002<\/li>\n<\/ul>\n
    \u81ea\u589e ID \u7684\u9650\u5236<\/strong><\/p>\n
      \n
    •  \u4e0d\u80fd\u56de\u9000\uff1a<\/strong>\u4e00\u65e6\u5206\u914d\u4e86\u81ea\u589e ID\uff0c\u5b83\u5c31\u4e0d\u80fd\u56de\u9000\u3002\u5982\u679c\u9700\u8981\u66f4\u6539 ID\uff0c\u8bf7\u66f4\u65b0\u8bb0\u5f55\u6216\u5220\u9664\u5e76\u91cd\u65b0\u63d2\u5165\u5b83\u3002<\/li>\n
    •  \u6f5c\u5728\u7684\u6027\u80fd\u95ee\u9898\uff1a<\/strong>\u5f53\u8868\u4e2d\u6709\u5927\u91cf\u8bb0\u5f55\u65f6\uff0c\u81ea\u589e ID \u53ef\u80fd\u4f1a\u5f71\u54cd\u6027\u80fd\u3002\u8fd9\u662f\u56e0\u4e3a MySQL \u5fc5\u987b\u66f4\u65b0 .ibd \u6587\u4ef6\u4e2d\u7684\u8ba1\u6570\u5668\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662f\u81ea\u589e\u4f5c\u7528\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":"
      \u81ea\u589e id \u662f mysql \u4e2d\u4e00\u79cd\u81ea\u52a8\u9012\u589e\u7684\u7279\u6b8a\u6570\u636e\u7c7b\u578b\uff0c\u7528\u4e8e\u751f\u6210\u552f\u4e00 id\uff0c\u9632\u6b62\u91cd\u590d\u5e76\u7b80\u5316\u6392\u5e8f\u3002\u5b83\u7684\u5de5\u4f5c\u539f\u7406\u5982\u4e0b\uff1amysql \u4f7f\u7528 “auto-increment” \u8ba1\u6570\u5668\u751f\u6210\u81ea\u589e id\u3002\u8ba1\u6570\u5668\u5b58\u50a8\u5728\u4e0e\u8868\u5173\u8054\u7684 .ibd \u6587\u4ef6\u4e2d\uff0c\u5373\u4f7f\u670d\u52a1\u5668\u91cd\u542f\u540e\u4e5f\u4e0d\u4f1a\u4e22\u5931\u3002\u63d2\u5165\u65b0\u8bb0\u5f55\u65f6\uff0c\u8ba1\u6570\u5668\u9012\u589e\u5e76\u5206\u914d\u7ed9 auto_increment \u5217\u3002 MySQL \u81ea\u589e ID \u7684\u5de5\u4f5c\u539f\u7406 \u4ec0\u4e48\u662f\u81ea\u589e ID\uff1f \u81ea\u589e ID \u662f MySQL \u4e2d\u4e00\u79cd\u7279\u6b8a\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5b83\u4f1a\u968f\u7740\u65b0\u8bb0\u5f55\u7684\u63d2\u5165\u800c\u81ea\u52a8\u9012\u589e\u3002 \u5982\u4f55\u4f7f\u7528\u81ea\u589e ID\uff1f \u5728\u521b\u5efa\u8868\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7 AUTO_INCREMENT \u5173\u952e\u5b57\u6307\u5b9a\u81ea\u589e ID \u5217\u3002\u4f8b\u5982\uff1a CREATE TABLE my_table ( id INT NOT NULL AUTO_INCREMENT, name VARCHAR(255) ); \u767b\u5f55\u540e\u590d\u5236 \u81ea\u589e ID \u7684\u5de5\u4f5c\u539f\u7406 MySQL \u4f7f\u7528\u4e00\u4e2a\u540d\u4e3a “auto-increment” \u7684\u5185\u90e8\u8ba1\u6570\u5668\u6765\u751f\u6210\u81ea\u589e ID\u3002\u5f53\u63d2\u5165\u65b0\u8bb0\u5f55\u65f6\uff0cMySQL \u4f1a\u5c06\u8ba1\u6570\u5668\u9012\u589e\uff0c\u5e76\u5c06\u8be5\u503c\u5206\u914d\u7ed9 AUTO_INCREMENT […]<\/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-6356","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6356","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=6356"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6356\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6356"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6356"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6356"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}