{"id":5645,"date":"2024-11-14T10:13:03","date_gmt":"2024-11-14T02:13:03","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5645\/"},"modified":"2024-11-14T10:13:03","modified_gmt":"2024-11-14T02:13:03","slug":"sql%e6%b8%b8%e6%a0%87%e6%80%8e%e4%b9%88%e6%8e%92%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5645\/","title":{"rendered":"sql\u6e38\u6807\u600e\u4e48\u6392\u5e8f"},"content":{"rendered":"

\n \u5982\u4f55\u5bf9 sql \u6e38\u6807\u6392\u5e8f\uff1a\u4f7f\u7528 order by \u5b50\u53e5\u5bf9\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\u3002\u539f\u56e0\uff1a\u663e\u793a\u6709\u5e8f\u6570\u636e\u57fa\u4e8e\u6392\u5e8f\u8fdb\u884c\u64cd\u4f5c\u4f18\u5316\u6027\u80fd\uff08\u5229\u7528\u6392\u5e8f\u7d22\u5f15\uff09\n<\/p><\/blockquote>\n

\"sql\u6e38\u6807\u600e\u4e48\u6392\u5e8f\u63d2\u56fe\"<\/p>\n

SQL \u6e38\u6807\u6392\u5e8f<\/strong><\/p>\n

SQL \u6e38\u6807\u662f\u4e00\u79cd\u5141\u8bb8\u7a0b\u5e8f\u9010\u884c\u8bbf\u95ee\u67e5\u8be2\u7ed3\u679c\u96c6\u7684\u673a\u5236\u3002\u4f46\u662f\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6e38\u6807\u4e0d\u4f1a\u5bf9\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n

\u5982\u4f55\u5bf9 SQL \u6e38\u6807\u8fdb\u884c\u6392\u5e8f\uff1f<\/strong><\/p>\n

\u8981\u5bf9 SQL \u6e38\u6807\u8fdb\u884c\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528 ORDER BY \u5b50\u53e5\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

SELECT * FROM table_name ORDER BY column_name;<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4f8b\u5982\uff0c\u8981\u6309\u7167 name \u5217\u5bf9\u5458\u5de5\u8868\u8fdb\u884c\u5347\u5e8f\u6392\u5e8f\uff0c\u53ef\u4ee5\u6267\u884c\u4ee5\u4e0b\u67e5\u8be2\uff1a<\/p>\n
SELECT * FROM employees ORDER BY name;<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4e3a\u4ec0\u4e48\u9700\u8981\u5bf9 SQL \u6e38\u6807\u8fdb\u884c\u6392\u5e8f\uff1f<\/strong><\/p>\n
\u5bf9 SQL \u6e38\u6807\u8fdb\u884c\u6392\u5e8f\u7684\u4e3b\u8981\u539f\u56e0\u6709\uff1a<\/p>\n
    \n
  •  \u663e\u793a\u6709\u5e8f\u6570\u636e\uff1a<\/strong>\u5728\u9700\u8981\u663e\u793a\u6709\u5e8f\u6570\u636e\u65f6\uff0c\u6392\u5e8f\u6e38\u6807\u53ef\u4ee5\u786e\u4fdd\u7ed3\u679c\u4ee5\u7279\u5b9a\u987a\u5e8f\u5448\u73b0\u3002<\/li>\n
  •  \u57fa\u4e8e\u6392\u5e8f\u8fdb\u884c\u64cd\u4f5c\uff1a<\/strong>\u5bf9\u6e38\u6807\u8fdb\u884c\u6392\u5e8f\u53ef\u4ee5\u4e3a\u57fa\u4e8e\u6392\u5e8f\u7684\u540e\u7eed\u64cd\u4f5c\uff08\u4f8b\u5982\u5206\u9875\u6216\u5206\u7ec4\uff09\u63d0\u4f9b\u4fbf\u5229\u3002<\/li>\n
  •  \u4f18\u5316\u6027\u80fd\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5bf9\u6e38\u6807\u8fdb\u884c\u6392\u5e8f\u53ef\u4ee5\u4f18\u5316\u67e5\u8be2\u6027\u80fd\uff0c\u56e0\u4e3a\u6570\u636e\u5e93\u53ef\u4ee5\u5229\u7528\u6392\u5e8f\u7684\u7d22\u5f15\u3002<\/li>\n<\/ul>\n
    \u793a\u4f8b<\/strong><\/p>\n
    \u5047\u8bbe\u6709\u4e00\u4e2a students \u8868\uff0c\u5176\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n
    CREATE TABLE students (\n  id INT NOT NULL AUTO_INCREMENT,\n  name VARCHAR(255) NOT NULL,\n  age INT NOT NULL,\n  PRIMARY KEY (id)\n);<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u8981\u6309\u7167\u5b66\u751f\u59d3\u540d\u5bf9\u6e38\u6807\u8fdb\u884c\u6392\u5e8f\uff0c\u7136\u540e\u518d\u83b7\u53d6\u7ed3\u679c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
    import mysql.connector\n\nmydb = mysql.connector.connect(\n  host=\"localhost\",\n  user=\"root\",\n  password=\"\",\n  database=\"school\"\n)\n\nmycursor = mydb.cursor()\n\nmycursor.execute(\"SELECT * FROM students ORDER BY name\")\n\nfor row in mycursor:\n  print(row)<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u8f93\u51fa\uff1a<\/strong><\/p>\n
    (1, 'Alice', 20)\n(2, 'Bob', 21)\n(3, 'Carol', 22)<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u4ee5\u4e0a\u5c31\u662fsql\u6e38\u6807\u600e\u4e48\u6392\u5e8f\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":"
    \u5982\u4f55\u5bf9 sql \u6e38\u6807\u6392\u5e8f\uff1a\u4f7f\u7528 order by \u5b50\u53e5\u5bf9\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\u3002\u539f\u56e0\uff1a\u663e\u793a\u6709\u5e8f\u6570\u636e\u57fa\u4e8e\u6392\u5e8f\u8fdb\u884c\u64cd\u4f5c\u4f18\u5316\u6027\u80fd\uff08\u5229\u7528\u6392\u5e8f\u7d22\u5f15\uff09 SQL \u6e38\u6807\u6392\u5e8f SQL \u6e38\u6807\u662f\u4e00\u79cd\u5141\u8bb8\u7a0b\u5e8f\u9010\u884c\u8bbf\u95ee\u67e5\u8be2\u7ed3\u679c\u96c6\u7684\u673a\u5236\u3002\u4f46\u662f\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6e38\u6807\u4e0d\u4f1a\u5bf9\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\u3002 \u5982\u4f55\u5bf9 SQL \u6e38\u6807\u8fdb\u884c\u6392\u5e8f\uff1f \u8981\u5bf9 SQL \u6e38\u6807\u8fdb\u884c\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528 ORDER BY \u5b50\u53e5\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a SELECT * FROM table_name ORDER BY column_name; \u767b\u5f55\u540e\u590d\u5236 \u4f8b\u5982\uff0c\u8981\u6309\u7167 name \u5217\u5bf9\u5458\u5de5\u8868\u8fdb\u884c\u5347\u5e8f\u6392\u5e8f\uff0c\u53ef\u4ee5\u6267\u884c\u4ee5\u4e0b\u67e5\u8be2\uff1a SELECT * FROM employees ORDER BY name; \u767b\u5f55\u540e\u590d\u5236 \u4e3a\u4ec0\u4e48\u9700\u8981\u5bf9 SQL \u6e38\u6807\u8fdb\u884c\u6392\u5e8f\uff1f \u5bf9 SQL \u6e38\u6807\u8fdb\u884c\u6392\u5e8f\u7684\u4e3b\u8981\u539f\u56e0\u6709\uff1a \u663e\u793a\u6709\u5e8f\u6570\u636e\uff1a\u5728\u9700\u8981\u663e\u793a\u6709\u5e8f\u6570\u636e\u65f6\uff0c\u6392\u5e8f\u6e38\u6807\u53ef\u4ee5\u786e\u4fdd\u7ed3\u679c\u4ee5\u7279\u5b9a\u987a\u5e8f\u5448\u73b0\u3002 \u57fa\u4e8e\u6392\u5e8f\u8fdb\u884c\u64cd\u4f5c\uff1a\u5bf9\u6e38\u6807\u8fdb\u884c\u6392\u5e8f\u53ef\u4ee5\u4e3a\u57fa\u4e8e\u6392\u5e8f\u7684\u540e\u7eed\u64cd\u4f5c\uff08\u4f8b\u5982\u5206\u9875\u6216\u5206\u7ec4\uff09\u63d0\u4f9b\u4fbf\u5229\u3002 \u4f18\u5316\u6027\u80fd\uff1a\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5bf9\u6e38\u6807\u8fdb\u884c\u6392\u5e8f\u53ef\u4ee5\u4f18\u5316\u67e5\u8be2\u6027\u80fd\uff0c\u56e0\u4e3a\u6570\u636e\u5e93\u53ef\u4ee5\u5229\u7528\u6392\u5e8f\u7684\u7d22\u5f15\u3002 \u793a\u4f8b \u5047\u8bbe\u6709\u4e00\u4e2a students \u8868\uff0c\u5176\u7ed3\u6784\u5982\u4e0b\uff1a CREATE TABLE students ( […]<\/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-5645","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5645","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=5645"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5645\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}