{"id":6519,"date":"2024-11-14T13:34:27","date_gmt":"2024-11-14T05:34:27","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6519\/"},"modified":"2024-11-14T13:34:27","modified_gmt":"2024-11-14T05:34:27","slug":"%e6%80%8e%e4%b9%88%e5%88%a0%e9%99%a4mysql%e8%a1%a8%e6%a0%bc%e6%95%b0%e6%8d%ae%e5%ba%93%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6519\/","title":{"rendered":"\u600e\u4e48\u5220\u9664mysql\u8868\u683c\u6570\u636e\u5e93\u6570\u636e"},"content":{"rendered":"

\n \u5220\u9664 mysql \u8868\u4e2d\u6570\u636e\u7684\u65b9\u6cd5\uff1atruncate table \u547d\u4ee4\uff1a\u901a\u8fc7\u4e0d\u8bb0\u5f55\u65e5\u5fd7\u7684\u65b9\u5f0f\u5feb\u901f\u5220\u9664\u6240\u6709\u6570\u636e\uff0c\u65e0\u6cd5\u56de\u6eda\u3002delete \u8bed\u53e5\uff1a\u6839\u636e\u6761\u4ef6\u5220\u9664\u7279\u5b9a\u884c\uff0c\u53ef\u4f7f\u7528 where \u5b50\u53e5\u8fc7\u6ee4\u884c\u548c limit \u5b50\u53e5\u9650\u5236\u884c\u6570\u3002\n<\/p><\/blockquote>\n

\"\u600e\u4e48\u5220\u9664mysql\u8868\u683c\u6570\u636e\u5e93\u6570\u636e\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5220\u9664 MySQL \u8868\u4e2d\u7684\u6570\u636e<\/strong><\/p>\n

\u5220\u9664 MySQL \u8868\u4e2d\u6570\u636e\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u5177\u4f53\u9009\u62e9\u53d6\u51b3\u4e8e\u6570\u636e\u7684\u89c4\u6a21\u548c\u60c5\u51b5\u3002<\/p>\n

TRUNCATE TABLE<\/strong><\/p>\n

TRUNCATE TABLE \u547d\u4ee4\u662f\u5220\u9664\u8868\u4e2d\u6240\u6709\u6570\u636e\u7684\u6700\u5feb\u65b9\u6cd5\u3002\u5b83\u4e0d\u4f7f\u7528\u4e8b\u52a1\uff0c\u56e0\u6b64\u4e0d\u4f1a\u8bb0\u5f55\u5728\u65e5\u5fd7\u4e2d\uff0c\u4e5f\u4e0d\u80fd\u56de\u6eda\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

TRUNCATE TABLE table_name;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
DELETE \u8bed\u53e5<\/strong><\/p>\n
DELETE \u8bed\u53e5\u7528\u4e8e\u6839\u636e\u7279\u5b9a\u6761\u4ef6\u5220\u9664\u8868\u4e2d\u7684\u7279\u5b9a\u884c\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
DELETE FROM table_name\nWHERE condition;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
WHERE \u5b50\u53e5<\/strong><\/p>\n
WHERE \u5b50\u53e5\u7528\u4e8e\u6307\u5b9a\u8981\u5220\u9664\u7684\u884c\u7684\u6761\u4ef6\u3002\u5b83\u53ef\u4ee5\u7528\u4e8e\u6839\u636e\u5217\u503c\u3001\u8303\u56f4\u6216\u5176\u4ed6\u6761\u4ef6\u6765\u8fc7\u6ee4\u884c\u3002\u4f8b\u5982\uff1a<\/p>\n
DELETE FROM table_name\nWHERE column_name = 'value';<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
LIMIT \u5b50\u53e5<\/strong><\/p>\n
LIMIT \u5b50\u53e5\u7528\u4e8e\u9650\u5236\u8981\u5220\u9664\u7684\u884c\u6570\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
DELETE FROM table_name\nWHERE condition\nLIMIT number_of_rows;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u793a\u4f8b<\/strong><\/p>\n
\u4f8b\u5982\uff0c\u8981\u5220\u9664\u8868 users \u4e2d\u6240\u6709\u7528\u6237\u540d\u4e3a john \u7684\u884c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u53e5\uff1a<\/p>\n
DELETE FROM users\nWHERE username = 'john';<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n
    \n
  • TRUNCATE TABLE \u547d\u4ee4\u4e0d\u80fd\u7528\u4e8e\u5177\u6709\u5916\u952e\u7ea6\u675f\u7684\u8868\u3002<\/li>\n
  • \u5982\u679c\u8868\u975e\u5e38\u5927\uff0c\u4f7f\u7528 DELETE \u8bed\u53e5\u53ef\u80fd\u4f1a\u5f88\u6162\u3002<\/li>\n
  • \u52a1\u5fc5\u5907\u4efd\u6570\u636e\u540e\u518d\u5220\u9664\uff0c\u4ee5\u9632\u610f\u5916\u53d1\u751f\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u5220\u9664\u8868\u683c\u6570\u636e\u5e93\u6570\u636e\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 \u8868\u4e2d\u6570\u636e\u7684\u65b9\u6cd5\uff1atruncate table \u547d\u4ee4\uff1a\u901a\u8fc7\u4e0d\u8bb0\u5f55\u65e5\u5fd7\u7684\u65b9\u5f0f\u5feb\u901f\u5220\u9664\u6240\u6709\u6570\u636e\uff0c\u65e0\u6cd5\u56de\u6eda\u3002delete \u8bed\u53e5\uff1a\u6839\u636e\u6761\u4ef6\u5220\u9664\u7279\u5b9a\u884c\uff0c\u53ef\u4f7f\u7528 where \u5b50\u53e5\u8fc7\u6ee4\u884c\u548c limit \u5b50\u53e5\u9650\u5236\u884c\u6570\u3002 \u5982\u4f55\u5220\u9664 MySQL \u8868\u4e2d\u7684\u6570\u636e \u5220\u9664 MySQL \u8868\u4e2d\u6570\u636e\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u5177\u4f53\u9009\u62e9\u53d6\u51b3\u4e8e\u6570\u636e\u7684\u89c4\u6a21\u548c\u60c5\u51b5\u3002 TRUNCATE TABLE TRUNCATE TABLE \u547d\u4ee4\u662f\u5220\u9664\u8868\u4e2d\u6240\u6709\u6570\u636e\u7684\u6700\u5feb\u65b9\u6cd5\u3002\u5b83\u4e0d\u4f7f\u7528\u4e8b\u52a1\uff0c\u56e0\u6b64\u4e0d\u4f1a\u8bb0\u5f55\u5728\u65e5\u5fd7\u4e2d\uff0c\u4e5f\u4e0d\u80fd\u56de\u6eda\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a TRUNCATE TABLE table_name; \u767b\u5f55\u540e\u590d\u5236 DELETE \u8bed\u53e5 DELETE \u8bed\u53e5\u7528\u4e8e\u6839\u636e\u7279\u5b9a\u6761\u4ef6\u5220\u9664\u8868\u4e2d\u7684\u7279\u5b9a\u884c\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a DELETE FROM table_name WHERE condition; \u767b\u5f55\u540e\u590d\u5236 WHERE \u5b50\u53e5 WHERE \u5b50\u53e5\u7528\u4e8e\u6307\u5b9a\u8981\u5220\u9664\u7684\u884c\u7684\u6761\u4ef6\u3002\u5b83\u53ef\u4ee5\u7528\u4e8e\u6839\u636e\u5217\u503c\u3001\u8303\u56f4\u6216\u5176\u4ed6\u6761\u4ef6\u6765\u8fc7\u6ee4\u884c\u3002\u4f8b\u5982\uff1a DELETE FROM table_name WHERE column_name = ‘value’; \u767b\u5f55\u540e\u590d\u5236 LIMIT \u5b50\u53e5 LIMIT \u5b50\u53e5\u7528\u4e8e\u9650\u5236\u8981\u5220\u9664\u7684\u884c\u6570\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a DELETE FROM table_name WHERE […]<\/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-6519","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6519","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=6519"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6519\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6519"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6519"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}