\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7684\u6536\u96c6\u3001\u5b58\u5132\u548c\u5206\u6790\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f01\u696d\u9084\u662f\u500b\u4eba\uff0c\u80fd\u5920\u6709\u6548\u5730\u8655\u7406\u548c\u5206\u6790\u6578\u64da\u90fd\u662f\u6210\u529f\u7684\u95dc\u9375\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6578\u64da\u5eab\u548c\u8173\u672c\u5728\u6578\u64da\u8655\u7406\u548c\u5206\u6790\u4e2d\u7684\u91cd\u8981\u6027\uff0c\u4ee5\u53ca\u5982\u4f55\u5229\u7528\u9019\u4e9b\u5de5\u5177\u4f86\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n
\u6578\u64da\u5eab\u662f\u4e00\u7a2e\u6709\u7d44\u7e54\u7684\u6578\u64da\u96c6\u5408\uff0c\u901a\u5e38\u7528\u65bc\u5b58\u5132\u548c\u7ba1\u7406\u5927\u91cf\u7684\u6578\u64da\u3002\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08DBMS\uff09\u5141\u8a31\u7528\u6236\u5275\u5efa\u3001\u8b80\u53d6\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u3002\u5e38\u898b\u7684\u6578\u64da\u5eab\u985e\u578b\u5305\u62ec\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff08\u5982 MySQL\u3001PostgreSQL\uff09\u548c\u975e\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff08\u5982 MongoDB\u3001Cassandra\uff09\u3002<\/p>\n
\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u4f7f\u7528\u8868\u683c\u4f86\u5b58\u5132\u6578\u64da\uff0c\u4e26\u901a\u904e\u884c\u548c\u5217\u7684\u65b9\u5f0f\u7d44\u7e54\u4fe1\u606f\u3002\u9019\u7a2e\u7d50\u69cb\u4f7f\u5f97\u6578\u64da\u4e4b\u9593\u7684\u95dc\u806f\u6027\u8b8a\u5f97\u6e05\u6670\uff0c\u4e26\u4e14\u53ef\u4ee5\u4f7f\u7528 SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u9032\u884c\u67e5\u8a62\u548c\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4f7f\u7528 SQL \u67e5\u8a62\u5f9e\u4e00\u500b\u540d\u70ba “customers” \u7684\u8868\u4e2d\u9078\u64c7\u6240\u6709\u5ba2\u6236\u7684\u4ee3\u78bc\uff1a<\/p>\n
SELECT * FROM customers;<\/code><\/pre>\n\u975e\u95dc\u4fc2\u578b\u6578\u64da\u5eab<\/h3>\n
\u975e\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u5247\u4e0d\u4f7f\u7528\u8868\u683c\u7d50\u69cb\uff0c\u800c\u662f\u4ee5\u6587\u6a94\u3001\u9375\u503c\u5c0d\u6216\u5716\u5f62\u7684\u5f62\u5f0f\u5b58\u5132\u6578\u64da\u3002\u9019\u4f7f\u5f97\u5b83\u5011\u5728\u8655\u7406\u5927\u898f\u6a21\u6578\u64da\u548c\u9ad8\u4e26\u767c\u8acb\u6c42\u6642\u8868\u73fe\u51fa\u8272\u3002\u4f8b\u5982\uff0cMongoDB \u4f7f\u7528 BSON \u683c\u5f0f\u4f86\u5b58\u5132\u6578\u64da\uff0c\u9019\u4f7f\u5f97\u6578\u64da\u7684\u8b80\u53d6\u548c\u5beb\u5165\u901f\u5ea6\u66f4\u5feb\u3002<\/p>\n
\u8173\u672c\u5728\u6578\u64da\u8655\u7406\u4e2d\u7684\u89d2\u8272<\/h2>\n
\u8173\u672c\u662f\u4e00\u7a2e\u81ea\u52d5\u5316\u57f7\u884c\u4efb\u52d9\u7684\u7a0b\u5e8f\uff0c\u901a\u5e38\u7528\u65bc\u6578\u64da\u8655\u7406\u548c\u5206\u6790\u3002\u901a\u904e\u7de8\u5beb\u8173\u672c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u81ea\u52d5\u5316\u91cd\u8907\u6027\u4efb\u52d9\uff0c\u5f9e\u800c\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002\u5e38\u898b\u7684\u8173\u672c\u8a9e\u8a00\u5305\u62ec Python\u3001JavaScript \u548c Ruby\u3002<\/p>\n
\u4f7f\u7528 Python \u9032\u884c\u6578\u64da\u5206\u6790<\/h3>\n
Python \u662f\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u7279\u5225\u662f\u5728\u6578\u64da\u79d1\u5b78\u548c\u6578\u64da\u5206\u6790\u9818\u57df\u3002\u5b83\u64c1\u6709\u5f37\u5927\u7684\u5eab\uff0c\u5982 Pandas \u548c NumPy\uff0c\u9019\u4e9b\u5eab\u4f7f\u5f97\u6578\u64da\u8655\u7406\u8b8a\u5f97\u66f4\u52a0\u7c21\u55ae\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4f7f\u7528 Pandas \u8b80\u53d6 CSV \u6587\u4ef6\u4e26\u986f\u793a\u524d\u4e94\u884c\u7684\u4ee3\u78bc\uff1a<\/p>\n
import pandas as pd\n\ndata = pd.read_csv('data.csv')\nprint(data.head())<\/code><\/pre>\n\u81ea\u52d5\u5316\u6578\u64da\u8655\u7406<\/h3>\n
\u901a\u904e\u8173\u672c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u81ea\u52d5\u5316\u6578\u64da\u7684\u6e05\u7406\u3001\u8f49\u63db\u548c\u52a0\u8f09\uff08ETL\uff09\u904e\u7a0b\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 Python \u7684\u8173\u672c\u53ef\u4ee5\u5b9a\u671f\u5f9e\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u6578\u64da\uff0c\u9032\u884c\u5206\u6790\uff0c\u7136\u5f8c\u5c07\u7d50\u679c\u5b58\u5132\u56de\u6578\u64da\u5eab\u4e2d\u3002\u9019\u6a23\u7684\u81ea\u52d5\u5316\u4e0d\u50c5\u7bc0\u7701\u4e86\u6642\u9593\uff0c\u9084\u6e1b\u5c11\u4e86\u4eba\u70ba\u932f\u8aa4\u7684\u53ef\u80fd\u6027\u3002<\/p>\n
\u6578\u64da\u5eab\u8207\u8173\u672c\u7684\u7d50\u5408<\/h2>\n
\u5c07\u6578\u64da\u5eab\u548c\u8173\u672c\u7d50\u5408\u4f7f\u7528\uff0c\u53ef\u4ee5\u5be6\u73fe\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u548c\u5206\u6790\u3002\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528\u8173\u672c\u5f9e\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u6578\u64da\uff0c\u9032\u884c\u5206\u6790\uff0c\u7136\u5f8c\u5c07\u7d50\u679c\u5beb\u56de\u6578\u64da\u5eab\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4f7f\u7528 Python \u548c SQLAlchemy \u5f9e\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u6578\u64da\u7684\u4ee3\u78bc\uff1a<\/p>\n
from sqlalchemy import create_engine\nimport pandas as pd\n\nengine = create_engine('mysql+pymysql:\/\/user:password@localhost\/dbname')\ndata = pd.read_sql('SELECT * FROM table_name', engine)\nprint(data)<\/code><\/pre>\n\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u8655\u7406\u7684\u6548\u7387\uff0c\u9084\u4f7f\u5f97\u6578\u64da\u5206\u6790\u7684\u904e\u7a0b\u66f4\u52a0\u9748\u6d3b\u548c\u53ef\u64f4\u5c55\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u6578\u64da\u5eab\u548c\u8173\u672c\u5728\u6578\u64da\u8655\u7406\u548c\u5206\u6790\u4e2d\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002\u901a\u904e\u6709\u6548\u5730\u5229\u7528\u9019\u4e9b\u5de5\u5177\uff0c\u4f01\u696d\u548c\u500b\u4eba\u53ef\u4ee5\u66f4\u597d\u5730\u7ba1\u7406\u548c\u5206\u6790\u6578\u64da\uff0c\u5f9e\u800c\u505a\u51fa\u66f4\u660e\u667a\u7684\u6c7a\u7b56\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u53ef\u4ee5\u63d0\u4f9b\u7a69\u5b9a\u7684\u74b0\u5883\u4f86\u904b\u884c\u6578\u64da\u5eab\u548c\u8173\u672c\uff0c\u9032\u4e00\u6b65\u63d0\u5347\u6578\u64da\u5206\u6790\u7684\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u63a2\u7d22\u5982\u4f55\u5229\u7528\u6578\u64da\u5eab\u548c\u8173\u672c\u9ad8\u6548\u8655\u7406\u8207\u5206\u6790\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u548c\u6c7a\u7b56\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-187592","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187592","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=187592"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187592\/revisions"}],"predecessor-version":[{"id":187593,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187592\/revisions\/187593"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=187592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=187592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=187592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}