{"id":27712,"date":"2024-11-24T12:16:39","date_gmt":"2024-11-24T04:16:39","guid":{"rendered":"https:\/\/fwq.ai\/blog\/27712\/"},"modified":"2024-11-24T12:16:39","modified_gmt":"2024-11-24T04:16:39","slug":"mysql-%e6%97%a5%e6%9c%9f%e6%af%94%e8%be%83%e5%92%8c%e9%9a%8f%e6%9c%ba%e6%9c%88%e4%bb%bd%e7%9a%84%e5%9b%b0%e6%83%91%ef%bc%9a%e4%b8%ba%e4%bb%80%e4%b9%88%e6%88%91%e7%9a%84-sql-%e6%9f%a5%e8%af%a2-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/27712\/","title":{"rendered":"MySQL \u65e5\u671f\u6bd4\u8f83\u548c\u968f\u673a\u6708\u4efd\u7684\u56f0\u60d1\uff1a\u4e3a\u4ec0\u4e48\u6211\u7684 SQL \u67e5\u8be2\u7ed3\u679c\u603b\u662f\u53d8\u5316\uff1f"},"content":{"rendered":"

\"MySQL<\/p>\n

\u795e\u79d8\u7684 \u5339\u914d\u95ee\u9898\uff1a\u63ed\u79d8\u65e5\u671f\u6bd4\u8f83\u548c\u968f\u673a\u6708\u4efd<\/strong><\/p>\n

\u5728 mysql \u4e2d\uff0c\u4e00\u5219\u8be1\u5f02\u7684 sql \u67e5\u8be2\u5f15\u8d77\u4e86\u56f0\u6270\uff1a<\/p>\n

select *\nfrom  teacher\nwhere \ndate_format(date_add('2023-11-01',interval floor(rand() * datediff (curdate(), '2023-11-01')) day),'%y-%m') = date_format(create_time, '%y-%m');<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u76ee\u6807\u662f\u67e5\u8be2\u4ece\u7ed9\u5b9a\u6708\u4efd\u5230\u73b0\u5728\u7684\u65f6\u95f4\u6bb5\u5185\uff0c\u968f\u673a\u9009\u53d6\u67d0\u4e2a\u6708\u7684\u6570\u636e\u3002\u7136\u800c\uff0c\u7ed3\u679c\u5374\u4ee4\u4eba\u7591\u60d1\u3002<\/p>\n
\u95ee\u9898\u6839\u6e90\u5728\u4e8e\u968f\u673a\u6708\u4efd\u90e8\u5206\u7684 sql \u8bed\u53e5\u3002\u6bcf\u6b21\u6267\u884c\u67e5\u8be2\u65f6\uff0crand \u51fd\u6570\u90fd\u4f1a\u91cd\u65b0\u8ba1\u7b97\uff0c\u5bfc\u81f4\u6bcf\u6b21\u968f\u673a\u6708\u4efd\u4e0d\u540c\u3002\u4e3a\u4e86\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u53ef\u4ee5\u5229\u7528 mysql 8 \u7684 with \u8bed\u53e5\uff1a<\/p>\n
with mo1 as (select DATE_FORMAT(DATE_ADD('2023-11-01', INTERVAL FLOOR(RAND() * DATEDIFF(CURDATE(), '2023-11-01')) DAY),\n                                '%Y-%m') as month)\n\nSELECT *\nFROM teacher\n         join mo1 on mo1.month = DATE_FORMAT(create_time, '%Y-%m')<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u867d\u7136\u8fd9\u89e3\u51b3\u4e86\u95ee\u9898\uff0c\u4f46\u8fd8\u6709\u66f4\u4f18\u5316\u7684\u65b9\u6848\uff1a<\/p>\n
    \n
  •  \u907f\u514d\u4f7f\u7528\u51fd\u6570\u7d22\u5f15\uff1a<\/strong>\u51fd\u6570\u7d22\u5f15\u7684\u6027\u80fd\u5e76\u4e0d\u7406\u60f3\uff0c\u4e0d\u5982\u76f4\u63a5\u4e3a create_time \u5217\u521b\u5efa\u7d22\u5f15\u3002<\/li>\n
  •  \u4f7f\u7528\u5916\u90e8\u53c2\u6570\uff1a<\/strong>\u5c06\u968f\u673a\u6708\u4efd\u4f5c\u4e3a\u5916\u90e8\u53c2\u6570\u4f20\u5165\uff0c\u800c\u4e0d\u662f\u5728 sql \u8bed\u53e5\u4e2d\u8ba1\u7b97\u3002<\/li>\n
  •  \u4f7f\u7528 between \u6bd4\u8f83\uff1a<\/strong>\u5c06\u521b\u5efa\u65e5\u671f\u8303\u56f4\u8865\u5168\uff0c\u4f7f\u7528 between \u6bd4\u8f83\uff0c\u5e76\u4e3a create_time \u5217\u521b\u5efa\u7d22\u5f15\u3002<\/li>\n<\/ul>\n
    \u901a\u8fc7\u8fd9\u4e9b\u4f18\u5316\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8 mysql \u67e5\u8be2\u6548\u7387\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u56f0\u60d1\u3002<\/p>\n
    \u4ee5\u4e0a\u5c31\u662fMySQL \u65e5\u671f\u6bd4\u8f83\u548c\u968f\u673a\u6708\u4efd\u7684\u56f0\u60d1\uff1a\u6211\u7684 SQL \u67e5\u8be2\u7ed3\u679c\u603b\u662f\u53d8\u5316\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u795e\u79d8\u7684 \u5339\u914d\u95ee\u9898\uff1a\u63ed\u79d8\u65e5\u671f\u6bd4\u8f83\u548c\u968f\u673a\u6708\u4efd \u5728 mysql \u4e2d\uff0c\u4e00\u5219\u8be1\u5f02\u7684 sql \u67e5\u8be2\u5f15\u8d77\u4e86\u56f0\u6270\uff1a select * from teacher where date_format(date_add(‘2023-11-01’,interval floor(rand() * datediff (curdate(), ‘2023-11-01′)) day),’%y-%m’) = date_format(create_time, ‘%y-%m’); \u767b\u5f55\u540e\u590d\u5236 \u76ee\u6807\u662f\u67e5\u8be2\u4ece\u7ed9\u5b9a\u6708\u4efd\u5230\u73b0\u5728\u7684\u65f6\u95f4\u6bb5\u5185\uff0c\u968f\u673a\u9009\u53d6\u67d0\u4e2a\u6708\u7684\u6570\u636e\u3002\u7136\u800c\uff0c\u7ed3\u679c\u5374\u4ee4\u4eba\u7591\u60d1\u3002 \u95ee\u9898\u6839\u6e90\u5728\u4e8e\u968f\u673a\u6708\u4efd\u90e8\u5206\u7684 sql \u8bed\u53e5\u3002\u6bcf\u6b21\u6267\u884c\u67e5\u8be2\u65f6\uff0crand \u51fd\u6570\u90fd\u4f1a\u91cd\u65b0\u8ba1\u7b97\uff0c\u5bfc\u81f4\u6bcf\u6b21\u968f\u673a\u6708\u4efd\u4e0d\u540c\u3002\u4e3a\u4e86\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u53ef\u4ee5\u5229\u7528 mysql 8 \u7684 with \u8bed\u53e5\uff1a with mo1 as (select DATE_FORMAT(DATE_ADD(‘2023-11-01’, INTERVAL FLOOR(RAND() * DATEDIFF(CURDATE(), ‘2023-11-01’)) DAY), ‘%Y-%m’) as month) SELECT * FROM teacher join mo1 on mo1.month […]<\/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-27712","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/27712","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=27712"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/27712\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=27712"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=27712"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=27712"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}