{"id":31525,"date":"2023-05-24T11:46:52","date_gmt":"2023-05-24T03:46:52","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=31525"},"modified":"2023-07-31T00:08:32","modified_gmt":"2023-07-30T16:08:32","slug":"mysql%e7%99%be%e4%b8%87%e7%ba%a7%e8%a1%a8%e5%9c%a8%e4%b8%8d%e5%81%9c%e6%9c%ba%e7%9a%84%e6%83%85%e5%86%b5%e4%b8%8b%e5%a2%9e%e5%8a%a0%e4%b8%80%e4%b8%aa%e5%ad%97%e6%ae%b5%e8%a6%81%e6%80%8e%e4%b9%88","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/31525.html","title":{"rendered":"mysql\u767e\u4e07\u7ea7\u8868\u5728\u4e0d\u505c\u673a\u7684\u60c5\u51b5\u4e0b\u589e\u52a0\u4e00\u4e2a\u5b57\u6bb5\u8981\u600e\u4e48\u5904\u7406\u7684"},"content":{"rendered":"
\n

mysql\u767e\u4e07\u7ea7\u8868\u5728\u4e0d\u505c\u673a\u7684\u60c5\u51b5\u4e0b\u589e\u52a0\u4e00\u4e2a\u5b57\u6bb5\u4f7f\u7528pt-online-schema-change\u3002pt-online-schema-change\u662fpercona\u516c\u53f8\u5f00\u53d1\u7684\u4e00\u4e2a\u5de5\u5177\uff0c\u5728percona-toolkit\u5305\u91cc\u9762\u53ef\u4ee5\u627e\u5230\u8fd9\u4e2a\u529f\u80fd\uff0c\u5b83\u53ef\u4ee5\u5728\u7ebf\u4fee\u6539\u8868\u7ed3\u6784\u3002\u9996\u5148\u5b83\u4f1a\u65b0\u5efa\u4e00\u5f20\u4e00\u6a21\u4e00\u6837\u7684\u8868\uff0c\u8868\u540d\u4e00\u822c\u662f_\u4e3a\u524d\u7f00_new\u540e\u7f00,\u4f8b\u5982\u539f\u8868\u4e3at_user\u4e34\u65f6\u8868\u5c31\u662f_t_user_new\u3002<\/p>\n<\/blockquote>\n

\n
\"\"<\/figure>\n<\/div>\n

\u4e00\u3001mysql\u767e\u4e07\u7ea7\u8868\u5728\u4e0d\u505c\u673a\u7684\u60c5\u51b5\u4e0b\u589e\u52a0\u4e00\u4e2a\u5b57\u6bb5\u8981\u600e\u4e48\u5904\u7406\u7684<\/strong><\/h2>\n

mysql\u767e\u4e07\u7ea7\u8868\u5728\u4e0d\u505c\u673a\u7684\u60c5\u51b5\u4e0b\u589e\u52a0\u4e00\u4e2a\u5b57\u6bb5\u4f7f\u7528pt-online-schema-change\u3002pt-online-schema-change\u662fpercona\u516c\u53f8\u5f00\u53d1\u7684\u4e00\u4e2a\u5de5\u5177\uff0c\u5728percona-toolkit\u5305\u91cc\u9762\u53ef\u4ee5\u627e\u5230\u8fd9\u4e2a\u529f\u80fd\uff0c\u5b83\u53ef\u4ee5\u5728\u7ebf\u4fee\u6539\u8868\u7ed3\u6784\u3002<\/p>\n

\u9996\u5148\u5b83\u4f1a\u65b0\u5efa\u4e00\u5f20\u4e00\u6a21\u4e00\u6837\u7684\u8868\uff0c\u8868\u540d\u4e00\u822c\u662f_\u4e3a\u524d\u7f00_new\u540e\u7f00,\u4f8b\u5982\u539f\u8868\u4e3at_user \u4e34\u65f6\u8868\u5c31\u662f_t_user_new\uff1b<\/p>\n

\u7136\u540e\u5728\u8fd9\u4e2a\u65b0\u8868\u6267\u884c\u66f4\u6539\u5b57\u6bb5\u64cd\u4f5c\uff1b<\/p>\n

\u7136\u540e\u5728\u539f\u8868\u4e0a\u52a0\u4e09\u4e2a\u89e6\u53d1\u5668\uff0cDELETE\/UPDATE\/INSERT\uff0c\u5c06\u539f\u8868\u4e2d\u8981\u6267\u884c\u7684\u8bed\u53e5\u4e5f\u5728\u65b0\u8868\u4e2d\u6267\u884c\uff1b<\/p>\n

\u6700\u540e\u5c06\u539f\u8868\u7684\u6570\u636e\u62f7\u8d1d\u5230\u65b0\u8868\u4e2d\uff0c\u7136\u540e\u66ff\u6362\u6389\u539f\u8868\u3002<\/p>\n

SQL<\/strong>\u8bed\u53e5\uff1a<\/strong><\/p>\n

ALTER TABLE tmp_task_user ADD support tinyint(1<\/strong>) unsigned NOT NULL DEFAULT \u20181\u2019;<\/p>\n

\u5de5\u5177\u547d\u4ee4\uff1a<\/strong><\/p>\n

sh pt.sh tmp_task_user \u201cADD COLUMN support tinyint(1<\/strong>) unsigned NOT NULL DEFAULT \u20181\u2019\u201d<\/p>\n

\u597d\u5904\uff1a<\/strong><\/p>\n

    \n
  • \u964d\u4f4e\u4e3b\u4ece\u5ef6\u65f6\u7684\u98ce\u9669<\/li>\n
  • \u53ef\u4ee5\u9650\u901f\u3001\u9650\u8d44\u6e90\uff0c\u907f\u514d\u64cd\u4f5c\u65f6MySQL\u8d1f\u8f7d\u8fc7\u9ad8<\/li>\n<\/ul>\n

    \u5efa\u8bae\uff1a<\/strong><\/p>\n

      \n
    • \u5728\u4e1a\u52a1\u4f4e\u5cf0\u671f\u505a\uff0c\u5c06\u5f71\u54cd\u964d\u5230\u6700\u4f4e<\/li>\n
    • \u5220\u9664\u7d22\u5f15\u540e\u518d\u4fee\u6539\u8868\u7ed3\u6784\uff0c\u6548\u7387\u5c06\u5927\u5927\u63d0\u5347<\/li>\n<\/ul>\n

      \u5ef6\u4f38\u9605\u8bfb\uff1a<\/strong><\/p>\n

      \u4e8c\u3001\u5e94\u7528\u67b6\u6784\u662f\u4ec0\u4e48<\/strong><\/h2>\n

      \u5e94\u7528\u67b6\u6784\uff08Application Architecture\uff09\u662f\u63cf\u8ff0\u4e86IT\u7cfb\u7edf\u529f\u80fd\u548c\u6280\u672f\u5b9e\u73b0\u7684\u5185\u5bb9\u3002\u5e94\u7528\u67b6\u6784\u5206\u4e3a\u4ee5\u4e0b\u4e24\u4e2a\u4e0d\u540c\u7684\u5c42\u6b21\uff1a<\/p>\n

        \n
      • \u4f01\u4e1a\u7ea7\u7684\u5e94\u7528\u67b6\u6784\uff1a\u4f01\u4e1a\u5c42\u9762\u7684\u5e94\u7528\u67b6\u6784\u8d77\u5230\u4e86\u7edf\u4e00\u89c4\u5212\u3001\u627f\u4e0a\u542f\u4e0b\u7684\u4f5c\u7528\uff0c\u5411\u4e0a\u627f\u63a5\u4e86\u4f01\u4e1a\u6218\u7565\u53d1\u5c55\u65b9\u5411\u548c\u4e1a\u52a1\u6a21\u5f0f\uff0c\u5411\u4e0b\u89c4\u5212\u548c\u6307\u5bfc\u4f01\u4e1a\u5404\u4e2aIT\u7cfb\u7edf\u7684\u5b9a\u4f4d\u548c\u529f\u80fd\u3002\u5728\u4f01\u4e1a\u67b6\u6784\u4e2d\uff0c\u5e94\u7528\u67b6\u6784\u662f\u6700\u91cd\u8981\u548c\u5de5\u4f5c\u91cf\u6700\u5927\u7684\u90e8\u5206\uff0c\u4ed6\u5305\u62ec\u4e86\u4f01\u4e1a\u7684\u5e94\u7528\u67b6\u6784\u84dd\u56fe\u3001\u67b6\u6784\u6807\u51c6\/\u539f\u5219\u3001\u7cfb\u7edf\u7684\u8fb9\u754c\u548c\u5b9a\u4e49\u3001\u7cfb\u7edf\u95f4\u7684\u5173\u8054\u5173\u7cfb\u7b49\u65b9\u9762\u7684\u5185\u5bb9\u3002<\/li>\n<\/ul>\n

        \u5355\u4e2a\u7cfb\u7edf\u7684\u5e94\u7528\u67b6\u6784\uff1a\u5728\u5f00\u53d1\u6216\u8bbe\u8ba1\u5355\u4e00IT\u7cfb\u7edf\u65f6\uff0c\u8bbe\u8ba1\u7cfb\u7edf\u7684\u4e3b\u8981\u6a21\u5757\u548c\u529f\u80fd\u70b9\uff0c\u7cfb\u7edf\u6280\u672f\u5b9e\u73b0\u662f\u4ece\u524d\u7aef\u5c55\u793a\u5230\u4e1a\u52a1\u5904\u7406\u903b\u8f91\uff0c\u5230\u540e\u53f0\u6570\u636e\u662f\u5982\u4f55\u67b6\u6784\u7684\u3002\u8fd9\u65b9\u9762\u7684\u5de5\u4f5c\u4e00\u822c\u5c5e\u4e8e\u9879\u76ee\u7ec4\uff0c\u800c\u4e0d\u662f\u4f01\u4e1a\u67b6\u6784\u7684\u8303\u7574\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"mysql\u767e\u4e07\u7ea7\u8868\u5728\u4e0d\u505c\u673a\u7684\u60c5\u51b5\u4e0b\u589e\u52a0\u4e00\u4e2a\u5b57\u6bb5\u4f7f\u7528pt-online-schema-change\u3002pt-onl […]","protected":false},"author":1,"featured_media":31526,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/31525"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=31525"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/31525\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/31526"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=31525"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=31525"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=31525"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}