{"id":159935,"date":"2024-11-03T18:53:31","date_gmt":"2024-11-03T10:53:31","guid":{"rendered":"https:\/\/server.hk\/cnblog\/159935\/"},"modified":"2024-11-03T18:53:32","modified_gmt":"2024-11-03T10:53:32","slug":"%e5%be%8c-sql-%e6%99%82%e4%bb%a3%ef%bc%8cdba-%e5%80%91%e4%b8%8d%e7%94%a8%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5%e7%94%a8%e4%bb%80%e9%ba%bc%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/159935\/","title":{"rendered":"\u5f8c SQL \u6642\u4ee3\uff0cDBA \u5011\u4e0d\u7528\u67e5\u8a62\u8a9e\u53e5\u7528\u4ec0\u9ebc\uff1f"},"content":{"rendered":"<h1 id=\"%e5%be%8c-sql-%e6%99%82%e4%bb%a3%ef%bc%8cdba-%e5%80%91%e4%b8%8d%e7%94%a8%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5%e7%94%a8%e4%bb%80%e9%ba%bc%ef%bc%9f-XVomQvgKYd\">\u5f8c SQL \u6642\u4ee3\uff0cDBA \u5011\u4e0d\u7528\u67e5\u8a62\u8a9e\u53e5\u7528\u4ec0\u9ebc\uff1f<\/h1>\n<p>\u96a8\u8457\u6578\u64da\u6280\u8853\u7684\u8fc5\u901f\u767c\u5c55\uff0c\u50b3\u7d71\u7684 SQL \u6578\u64da\u5eab\u7ba1\u7406\u65b9\u5f0f\u6b63\u5728\u7d93\u6b77\u4e00\u5834\u9769\u547d\u3002\u5c24\u5176\u662f\u5728\u5927\u6578\u64da\u548c\u96f2\u8a08\u7b97\u7684\u63a8\u52d5\u4e0b\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\uff08DBA\uff09\u9762\u81e8\u8457\u65b0\u7684\u6311\u6230\u548c\u6a5f\u9047\u3002\u5728\u9019\u500b\u5f8c SQL \u6642\u4ee3\uff0cDBA \u5011\u4e0d\u518d\u50c5\u50c5\u4f9d\u8cf4\u67e5\u8a62\u8a9e\u53e5\u4f86\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\uff0c\u9084\u9700\u8981\u638c\u63e1\u5176\u4ed6\u5de5\u5177\u548c\u6280\u8853\u4f86\u61c9\u5c0d\u65e5\u76ca\u8907\u96dc\u7684\u6578\u64da\u74b0\u5883\u3002<\/p>\n<h2 id=\"1-nosql-%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e8%88%88%e8%b5%b7-XVomQvgKYd\">1. NoSQL \u6578\u64da\u5eab\u7684\u8208\u8d77<\/h2>\n<p>NoSQL \u6578\u64da\u5eab\u7684\u51fa\u73fe\u70ba\u6578\u64da\u5b58\u5132\u548c\u6aa2\u7d22\u63d0\u4f9b\u4e86\u65b0\u7684\u601d\u8def\u3002\u8207\u50b3\u7d71\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u4e0d\u540c\uff0cNoSQL \u6578\u64da\u5eab\u5982 MongoDB\u3001Cassandra \u548c Redis \u7b49\uff0c\u5141\u8a31\u4ee5\u975e\u7d50\u69cb\u5316\u6216\u534a\u7d50\u69cb\u5316\u7684\u65b9\u5f0f\u5b58\u5132\u6578\u64da\u3002\u9019\u4f7f\u5f97 DBA \u53ef\u4ee5\u4f7f\u7528\u6587\u6a94\u3001\u9375\u503c\u5c0d\u6216\u5716\u5f62\u6578\u64da\u6a21\u578b\u4f86\u9032\u884c\u6578\u64da\u64cd\u4f5c\uff0c\u800c\u4e0d\u518d\u4f9d\u8cf4\u65bc SQL \u67e5\u8a62\u8a9e\u53e5\u3002<\/p>\n<h3 id=\"1-1-mongodb-%e7%9a%84%e4%bd%bf%e7%94%a8-XVomQvgKYd\">1.1 MongoDB \u7684\u4f7f\u7528<\/h3>\n<p>\u4ee5 MongoDB \u70ba\u4f8b\uff0cDBA \u53ef\u4ee5\u4f7f\u7528\u5176\u63d0\u4f9b\u7684\u67e5\u8a62\u8a9e\u8a00\u4f86\u9032\u884c\u6578\u64da\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 MongoDB \u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>db.users.find({ \"age\": { \"$gt\": 18 } })<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u8a9e\u53e5\u5c07\u8fd4\u56de\u6240\u6709\u5e74\u9f61\u5927\u65bc 18 \u6b72\u7684\u7528\u6236\u3002\u9019\u7a2e\u9748\u6d3b\u6027\u4f7f\u5f97 DBA \u80fd\u5920\u66f4\u5feb\u901f\u5730\u9069\u61c9\u8b8a\u5316\u7684\u6578\u64da\u9700\u6c42\u3002<\/p>\n<h2 id=\"2-%e6%95%b8%e6%93%9a%e6%b5%81%e5%92%8c%e4%ba%8b%e4%bb%b6%e9%a9%85%e5%8b%95%e6%9e%b6%e6%a7%8b-XVomQvgKYd\">2. \u6578\u64da\u6d41\u548c\u4e8b\u4ef6\u9a45\u52d5\u67b6\u69cb<\/h2>\n<p>\u96a8\u8457\u5be6\u6642\u6578\u64da\u8655\u7406\u9700\u6c42\u7684\u589e\u52a0\uff0c\u6578\u64da\u6d41\u548c\u4e8b\u4ef6\u9a45\u52d5\u67b6\u69cb\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u5de5\u5177\u5982 Apache Kafka \u548c Apache Flink \u4f7f\u5f97 DBA \u80fd\u5920\u8655\u7406\u6d41\u5f0f\u6578\u64da\uff0c\u800c\u4e0d\u5fc5\u4f9d\u8cf4\u65bc\u50b3\u7d71\u7684\u67e5\u8a62\u8a9e\u53e5\u3002<\/p>\n<h3 id=\"2-1-apache-kafka-%e7%9a%84%e6%87%89%e7%94%a8-XVomQvgKYd\">2.1 Apache Kafka \u7684\u61c9\u7528<\/h3>\n<p>Apache Kafka \u662f\u4e00\u500b\u5206\u4f48\u5f0f\u6d41\u5e73\u53f0\uff0c\u80fd\u5920\u8655\u7406\u5927\u91cf\u7684\u6578\u64da\u6d41\u3002DBA \u53ef\u4ee5\u4f7f\u7528 Kafka \u7684\u751f\u7522\u8005\u548c\u6d88\u8cbb\u8005\u6a21\u578b\u4f86\u5be6\u6642\u8655\u7406\u6578\u64da\u3002\u4f8b\u5982\uff0cDBA \u53ef\u4ee5\u8a2d\u7f6e\u4e00\u500b\u751f\u7522\u8005\u4f86\u767c\u9001\u7528\u6236\u6d3b\u52d5\u6578\u64da\uff0c\u4e26\u4f7f\u7528\u6d88\u8cbb\u8005\u4f86\u8655\u7406\u9019\u4e9b\u6578\u64da\uff1a<\/p>\n<pre><code>kafka-console-producer --broker-list localhost:9092 --topic user-activity<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u67b6\u69cb\u4f7f\u5f97\u6578\u64da\u8655\u7406\u66f4\u52a0\u9ad8\u6548\uff0c\u4e26\u4e14\u80fd\u5920\u5373\u6642\u97ff\u61c9\u696d\u52d9\u9700\u6c42\u3002<\/p>\n<h2 id=\"3-%e6%95%b8%e6%93%9a%e5%8f%af%e8%a6%96%e5%8c%96%e5%b7%a5%e5%85%b7-XVomQvgKYd\">3. \u6578\u64da\u53ef\u8996\u5316\u5de5\u5177<\/h2>\n<p>\u5728\u5f8c SQL \u6642\u4ee3\uff0c\u6578\u64da\u53ef\u8996\u5316\u5de5\u5177\u5982 Tableau \u548c Power BI \u4e5f\u6210\u70ba\u4e86 DBA \u7684\u91cd\u8981\u5de5\u5177\u3002\u9019\u4e9b\u5de5\u5177\u5141\u8a31\u7528\u6236\u901a\u904e\u5716\u5f62\u754c\u9762\u4f86\u63a2\u7d22\u548c\u5206\u6790\u6578\u64da\uff0c\u800c\u4e0d\u9700\u8981\u6df1\u5165\u4e86\u89e3 SQL \u8a9e\u8a00\u3002<\/p>\n<h3 id=\"3-1-tableau-%e7%9a%84%e4%bd%bf%e7%94%a8-XVomQvgKYd\">3.1 Tableau \u7684\u4f7f\u7528<\/h3>\n<p>\u4f7f\u7528 Tableau\uff0cDBA \u53ef\u4ee5\u8f15\u9b06\u5730\u5c07\u6578\u64da\u96c6\u5c0e\u5165\u4e26\u5275\u5efa\u53ef\u8996\u5316\u5831\u544a\u3002\u4ee5\u4e0b\u662f\u5c07\u6578\u64da\u96c6\u5c0e\u5165 Tableau \u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u6253\u958b Tableau\uff0c\u9078\u64c7\u6578\u64da\u6e90\u3002<\/li>\n<li>\u9023\u63a5\u5230\u6578\u64da\u5eab\u6216\u4e0a\u50b3\u6578\u64da\u6587\u4ef6\u3002<\/li>\n<li>\u4f7f\u7528\u62d6\u653e\u754c\u9762\u5275\u5efa\u53ef\u8996\u5316\u5716\u8868\u3002<\/li>\n<\/ul>\n<p>\u9019\u7a2e\u53ef\u8996\u5316\u65b9\u5f0f\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u5206\u6790\u7684\u6548\u7387\uff0c\u9084\u4f7f\u5f97\u975e\u6280\u8853\u4eba\u54e1\u4e5f\u80fd\u5920\u7406\u89e3\u6578\u64da\u80cc\u5f8c\u7684\u6545\u4e8b\u3002<\/p>\n<h2 id=\"4-%e6%a9%9f%e5%99%a8%e5%ad%b8%e7%bf%92%e8%88%87%e4%ba%ba%e5%b7%a5%e6%99%ba%e6%85%a7-XVomQvgKYd\">4. \u6a5f\u5668\u5b78\u7fd2\u8207\u4eba\u5de5\u667a\u6167<\/h2>\n<p>\u96a8\u8457\u6a5f\u5668\u5b78\u7fd2\u548c\u4eba\u5de5\u667a\u6167\u6280\u8853\u7684\u767c\u5c55\uff0cDBA \u4e5f\u9700\u8981\u638c\u63e1\u9019\u4e9b\u65b0\u6280\u8853\u4f86\u9032\u884c\u6578\u64da\u5206\u6790\u548c\u9810\u6e2c\u3002\u4f7f\u7528 Python \u548c R \u7b49\u7de8\u7a0b\u8a9e\u8a00\uff0cDBA \u53ef\u4ee5\u69cb\u5efa\u6a21\u578b\u4f86\u5206\u6790\u6578\u64da\u4e26\u505a\u51fa\u9810\u6e2c\u3002<\/p>\n<h3 id=\"4-1-python-%e7%9a%84%e6%87%89%e7%94%a8-XVomQvgKYd\">4.1 Python \u7684\u61c9\u7528<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 Python \u7684\u7c21\u55ae\u6a5f\u5668\u5b78\u7fd2\u6a21\u578b\u793a\u4f8b\uff1a<\/p>\n<pre><code>from sklearn.linear_model import LinearRegression\nimport numpy as np\n\n# \u5047\u8a2d\u6709\u4e00\u4e9b\u6578\u64da\nX = np.array([[1], [2], [3], [4]])\ny = np.array([1, 2, 3, 4])\n\nmodel = LinearRegression()\nmodel.fit(X, y)\npredictions = model.predict(np.array([[5]]))\nprint(predictions)<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u7dda\u6027\u56de\u6b78\u6a21\u578b\u4f86\u9032\u884c\u9810\u6e2c\uff0c\u9019\u5728\u6578\u64da\u5206\u6790\u4e2d\u662f\u975e\u5e38\u6709\u7528\u7684\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-XVomQvgKYd\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u5f8c SQL \u6642\u4ee3\uff0cDBA \u5011\u4e0d\u518d\u50c5\u50c5\u4f9d\u8cf4\u67e5\u8a62\u8a9e\u53e5\u4f86\u7ba1\u7406\u6578\u64da\uff0c\u800c\u662f\u9700\u8981\u638c\u63e1\u591a\u7a2e\u65b0\u6280\u8853\u548c\u5de5\u5177\uff0c\u5305\u62ec NoSQL \u6578\u64da\u5eab\u3001\u6578\u64da\u6d41\u8655\u7406\u3001\u6578\u64da\u53ef\u8996\u5316\u4ee5\u53ca\u6a5f\u5668\u5b78\u7fd2\u7b49\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u8655\u7406\u7684\u6548\u7387\uff0c\u4e5f\u4f7f\u5f97\u6578\u64da\u5206\u6790\u8b8a\u5f97\u66f4\u52a0\u9748\u6d3b\u548c\u76f4\u89c0\u3002\u96a8\u8457\u6280\u8853\u7684\u9032\u6b65\uff0cDBA \u7684\u89d2\u8272\u5c07\u6703\u66f4\u52a0\u591a\u5143\u5316\uff0c\u4e26\u5728\u6578\u64da\u9a45\u52d5\u7684\u6c7a\u7b56\u4e2d\u767c\u63ee\u95dc\u9375\u4f5c\u7528\u3002\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u6216\u5176\u4ed6\u96f2\u670d\u52d9\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5f8c SQL \u6642\u4ee3\uff0cDBA \u5982\u4f55\u5229\u7528\u65b0\u6280\u8853\u548c\u5de5\u5177\uff0c\u7121\u9700\u67e5\u8a62\u8a9e\u53e5\u4ecd\u80fd\u6709\u6548\u7ba1\u7406\u548c\u5206\u6790\u6578\u64da\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-159935","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159935","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=159935"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159935\/revisions"}],"predecessor-version":[{"id":159936,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159935\/revisions\/159936"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=159935"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=159935"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=159935"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}