{"id":5521,"date":"2024-11-14T08:46:52","date_gmt":"2024-11-14T00:46:52","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5521\/"},"modified":"2024-11-14T08:46:52","modified_gmt":"2024-11-14T00:46:52","slug":"mysql%e6%80%8e%e4%b9%88%e6%9f%a5%e8%af%a2%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5521\/","title":{"rendered":"mysql\u600e\u4e48\u67e5\u8be2\u8868"},"content":{"rendered":"

\n \u8981\u67e5\u8be2 mysql \u8868\uff0c\u8bf7\u4f7f\u7528 select \u8bed\u53e5\u3002\u6b65\u9aa4\u5305\u62ec\uff1a1. \u9009\u62e9\u5217\u540d\uff1b2. \u6307\u5b9a\u8868\u540d\uff1b3. \u6dfb\u52a0\u53ef\u9009\u7684 where \u5b50\u53e5\uff08\u8fc7\u6ee4\u6761\u4ef6\uff09\uff1b4. \u6dfb\u52a0\u53ef\u9009\u7684 order by \u5b50\u53e5\uff08\u6392\u5e8f\uff09\u3002\u4f8b\u5982\uff1aselect name, email from users where id > 5 order by name asc;\u5c06\u4ece “users” \u8868\u4e2d\u68c0\u7d22\u6307\u5b9a\u6761\u4ef6\u7684\u6570\u636e\u3002\n<\/p><\/blockquote>\n

\"mysql\u600e\u4e48\u67e5\u8be2\u8868\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u67e5\u8be2 MySQL \u8868<\/strong><\/p>\n

\u67e5\u8be2 MySQL \u8868\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528 SELECT \u8bed\u53e5\u3002\u8be5\u8bed\u53e5\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

SELECT column_name(s)\nFROM table_name\nWHERE condition(s)\nORDER BY column_name(s) [ASC|DESC];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6b65\u9aa4\uff1a<\/strong><\/p>\n
    \n
  1.  \u9009\u62e9\u5217\u540d\uff1a<\/strong>\u6307\u5b9a\u8981\u68c0\u7d22\u7684\u5217\uff0c\u7528\u9017\u53f7\u5206\u9694\u3002<\/li>\n
  2.  \u6307\u5b9a\u8868\u540d\uff1a<\/strong>\u6307\u5b9a\u8981\u67e5\u8be2\u7684\u8868\u3002<\/li>\n
  3.  \u6dfb\u52a0 WHERE \u5b50\u53e5\uff08\u53ef\u9009\uff09\uff1a<\/strong>\u6307\u5b9a\u8fc7\u6ee4\u6761\u4ef6\uff0c\u4ee5\u9650\u5236\u8fd4\u56de\u884c\u3002<\/li>\n
  4.  \u6dfb\u52a0 ORDER BY \u5b50\u53e5\uff08\u53ef\u9009\uff09\uff1a<\/strong>\u6307\u5b9a\u6392\u5e8f\u5b57\u6bb5\uff0c\u6309\u5347\u5e8f (ASC) \u6216\u964d\u5e8f (DESC) \u6392\u5e8f\u3002<\/li>\n<\/ol>\n
    \u793a\u4f8b\u67e5\u8be2\uff1a<\/strong><\/p>\n
    SELECT name, email\nFROM users\nWHERE id > 5\nORDER BY name ASC;<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8be5\u67e5\u8be2\u5c06\u4ece “users” \u8868\u4e2d\u9009\u53d6\u6240\u6709 “id” \u5927\u4e8e 5 \u7684\u7528\u6237\u7684 “name” \u548c “email” \u5217\uff0c\u5e76\u6309 “name” \u5217\u5347\u5e8f\u3002<\/p>\n
    \u5176\u4ed6\u67e5\u8be2\u9009\u9879\uff1a<\/strong><\/p>\n
      \n
    •  LIMIT \u5173\u952e\u5b57\uff1a<\/strong>\u9650\u5236\u8fd4\u56de\u7684\u884c\u6570\u3002<\/li>\n
    •  OFFSET \u5173\u952e\u5b57\uff1a<\/strong>\u8df3\u8fc7\u6307\u5b9a\u6570\u91cf\u7684\u884c\uff0c\u4ece\u6307\u5b9a\u7684\u504f\u79fb\u91cf\u5f00\u59cb\u68c0\u7d22\u884c\u3002<\/li>\n
    •  UNION \u8fd0\u7b97\u7b26\uff1a<\/strong>\u5c06\u4e24\u4e2a\u6216\u591a\u4e2a SELECT \u8bed\u53e5\u7684\u7ed3\u679c\u7ec4\u5408\u5728\u4e00\u8d77\u3002<\/li>\n
    •  JOIN \u5173\u952e\u5b57\uff1a<\/strong>\u4ece\u591a\u4e2a\u8868\u4e2d\u7ed3\u5408\u6570\u636e\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u67e5\u8be2\u8868\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":"
      \u8981\u67e5\u8be2 mysql \u8868\uff0c\u8bf7\u4f7f\u7528 select \u8bed\u53e5\u3002\u6b65\u9aa4\u5305\u62ec\uff1a1. \u9009\u62e9\u5217\u540d\uff1b2. \u6307\u5b9a\u8868\u540d\uff1b3. \u6dfb\u52a0\u53ef\u9009\u7684 where \u5b50\u53e5\uff08\u8fc7\u6ee4\u6761\u4ef6\uff09\uff1b4. \u6dfb\u52a0\u53ef\u9009\u7684 order by \u5b50\u53e5\uff08\u6392\u5e8f\uff09\u3002\u4f8b\u5982\uff1aselect name, email from users where id > 5 order by name asc;\u5c06\u4ece “users” \u8868\u4e2d\u68c0\u7d22\u6307\u5b9a\u6761\u4ef6\u7684\u6570\u636e\u3002 \u5982\u4f55\u67e5\u8be2 MySQL \u8868 \u67e5\u8be2 MySQL \u8868\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528 SELECT \u8bed\u53e5\u3002\u8be5\u8bed\u53e5\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a SELECT column_name(s) FROM table_name WHERE condition(s) ORDER BY column_name(s) [ASC|DESC]; \u767b\u5f55\u540e\u590d\u5236 \u6b65\u9aa4\uff1a \u9009\u62e9\u5217\u540d\uff1a\u6307\u5b9a\u8981\u68c0\u7d22\u7684\u5217\uff0c\u7528\u9017\u53f7\u5206\u9694\u3002 \u6307\u5b9a\u8868\u540d\uff1a\u6307\u5b9a\u8981\u67e5\u8be2\u7684\u8868\u3002 \u6dfb\u52a0 WHERE \u5b50\u53e5\uff08\u53ef\u9009\uff09\uff1a\u6307\u5b9a\u8fc7\u6ee4\u6761\u4ef6\uff0c\u4ee5\u9650\u5236\u8fd4\u56de\u884c\u3002 \u6dfb\u52a0 ORDER […]<\/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-5521","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5521","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=5521"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5521\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5521"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5521"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5521"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}