{"id":7624,"date":"2024-11-14T08:09:03","date_gmt":"2024-11-14T00:09:03","guid":{"rendered":"https:\/\/fwq.ai\/blog\/7624\/"},"modified":"2024-11-14T08:09:03","modified_gmt":"2024-11-14T00:09:03","slug":"sqlalchemy-%e6%9f%a5%e8%af%a2%e7%bb%93%e6%9e%9c%e4%b8%ad%e5%a6%82%e4%bd%95%e8%ae%bf%e9%97%ae%e6%8c%87%e5%ae%9a%e5%ad%97%e6%ae%b5%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/7624\/","title":{"rendered":"Sqlalchemy \u67e5\u8be2\u7ed3\u679c\u4e2d\u5982\u4f55\u8bbf\u95ee\u6307\u5b9a\u5b57\u6bb5\uff1f"},"content":{"rendered":"

\"Sqlalchemy<\/p>\n

sqlalchemy \u5bf9\u67e5\u8be2\u7ed3\u679c\u7684\u6307\u5b9a<\/strong><\/p>\n

sqlalchemy \u5728\u67e5\u8be2\u65f6\u662f\u5426\u5fc5\u987b\u6307\u5b9a\u5b57\u6bb5\u540d\u5462\uff1f<\/p>\n

\u5b98\u65b9\u6587\u6863\u8868\u660e\uff0c\u65b0\u7248 sqlalchemy \u4ee3\u7801\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 text \u51fd\u6570\u6765\u6267\u884c sql \u67e5\u8be2\u3002\u4f8b\u5982\uff1a<\/p>\n

from sqlalchemy import text, create_engine\n\nengine = create_engine(\"mysql+pymysql:\/\/\u8d26\u53f7:\u5bc6\u7801@\u5730\u5740\/\u5e93\")\n\nwith engine.connect() as connection:\n    result = connection.execute(text(\"select username from users\"))\n    for row in result:\n        print(\"username:\", row.username)<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0ctext(“select username from users”) \u521b\u5efa\u4e86\u4e00\u4e2a\u6587\u672c\u8868\u8fbe\u5f0f\uff0c\u5b83\u8868\u793a\u8981\u6267\u884c\u7684 sql \u67e5\u8be2\u3002\u6211\u4eec\u4e0d\u518d\u9700\u8981\u624b\u52a8\u6307\u5b9a\u5b57\u6bb5\u540d\uff0c\u800c\u662f\u53ef\u4ee5\u901a\u8fc7 row.username \u8bbf\u95ee\u7ed3\u679c\u4e2d\u7684\u503c\u3002<\/p>\n
\u4e0e\u65e7\u7248\u4ee3\u7801\u76f8\u6bd4\uff0c\u65b0\u7248\u4ee3\u7801\u66f4\u52a0\u7b80\u6d01\u660e\u4e86\uff0c\u540c\u65f6\u5b83\u4e5f\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u7075\u6d3b\u6027\u3002\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u5b98\u65b9\u6587\u6863\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fSqlalchemy \u67e5\u8be2\u7ed3\u679c\u4e2d\u5982\u4f55\u8bbf\u95ee\u6307\u5b9a\u5b57\u6bb5\uff1f\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":"
sqlalchemy \u5bf9\u67e5\u8be2\u7ed3\u679c\u7684\u6307\u5b9a sqlalchemy \u5728\u67e5\u8be2\u65f6\u662f\u5426\u5fc5\u987b\u6307\u5b9a\u5b57\u6bb5\u540d\u5462\uff1f \u5b98\u65b9\u6587\u6863\u8868\u660e\uff0c\u65b0\u7248 sqlalchemy \u4ee3\u7801\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 text \u51fd\u6570\u6765\u6267\u884c sql \u67e5\u8be2\u3002\u4f8b\u5982\uff1a from sqlalchemy import text, create_engine engine = create_engine(“mysql+pymysql:\/\/\u8d26\u53f7:\u5bc6\u7801@\u5730\u5740\/\u5e93”) with engine.connect() as connection: result = connection.execute(text(“select username from users”)) for row in result: print(“username:”, row.username) \u767b\u5f55\u540e\u590d\u5236 \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0ctext(“select username from users”) \u521b\u5efa\u4e86\u4e00\u4e2a\u6587\u672c\u8868\u8fbe\u5f0f\uff0c\u5b83\u8868\u793a\u8981\u6267\u884c\u7684 sql \u67e5\u8be2\u3002\u6211\u4eec\u4e0d\u518d\u9700\u8981\u624b\u52a8\u6307\u5b9a\u5b57\u6bb5\u540d\uff0c\u800c\u662f\u53ef\u4ee5\u901a\u8fc7 row.username \u8bbf\u95ee\u7ed3\u679c\u4e2d\u7684\u503c\u3002 \u4e0e\u65e7\u7248\u4ee3\u7801\u76f8\u6bd4\uff0c\u65b0\u7248\u4ee3\u7801\u66f4\u52a0\u7b80\u6d01\u660e\u4e86\uff0c\u540c\u65f6\u5b83\u4e5f\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u7075\u6d3b\u6027\u3002\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u5b98\u65b9\u6587\u6863\u3002 \u4ee5\u4e0a\u5c31\u662fSqlalchemy \u67e5\u8be2\u7ed3\u679c\u4e2d\u5982\u4f55\u8bbf\u95ee\u6307\u5b9a\u5b57\u6bb5\uff1f\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},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-7624","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/7624","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=7624"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/7624\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=7624"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=7624"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=7624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}