{"id":171645,"date":"2024-11-07T04:28:24","date_gmt":"2024-11-06T20:28:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/171645\/"},"modified":"2024-11-07T04:28:24","modified_gmt":"2024-11-06T20:28:24","slug":"%e8%bc%95%e9%ac%86%e6%93%8d%e4%bd%9c%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%8cdbutils-%e5%8a%a9%e5%8a%9b%e6%95%b8%e6%93%9a%e8%99%95%e7%90%86-dbutils-%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/171645\/","title":{"rendered":"\u8f15\u9b06\u64cd\u4f5c\u6578\u64da\u5eab\uff0cdbutils \u52a9\u529b\u6578\u64da\u8655\u7406 (dbutils \u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e8%bc%95%e9%ac%86%e6%93%8d%e4%bd%9c%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%8cdbutils-%e5%8a%a9%e5%8a%9b%e6%95%b8%e6%93%9a%e8%99%95%e7%90%86-dbutils-%e6%95%b8%e6%93%9a%e5%ba%ab-JfDXXGLQKg\">\u8f15\u9b06\u64cd\u4f5c\u6578\u64da\u5eab\uff0cdbutils \u52a9\u529b\u6578\u64da\u8655\u7406 (dbutils \u6578\u64da\u5eab)<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u64cd\u4f5c\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f01\u696d\u9084\u662f\u500b\u4eba\u958b\u767c\u8005\uff0c\u80fd\u5920\u9ad8\u6548\u5730\u8655\u7406\u6578\u64da\u90fd\u662f\u6210\u529f\u7684\u95dc\u9375\u3002dbutils \u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u70ba\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u63d0\u4f9b\u4e86\u7c21\u4fbf\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e dbutils \u7684\u529f\u80fd\u53ca\u5176\u5728\u6578\u64da\u8655\u7406\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-dbutils%ef%bc%9f-JfDXXGLQKg\">\u4ec0\u9ebc\u662f dbutils\uff1f<\/h2>\n<p>dbutils \u662f\u4e00\u500b\u7528\u65bc\u7c21\u5316\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u5de5\u5177\uff0c\u7279\u5225\u662f\u5728 Apache Spark \u74b0\u5883\u4e2d\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u7684 API\uff0c\u5e6b\u52a9\u7528\u6236\u8f15\u9b06\u5730\u9023\u63a5\u3001\u67e5\u8a62\u548c\u64cd\u4f5c\u6578\u64da\u5eab\u3002dbutils \u7684\u8a2d\u8a08\u76ee\u7684\u662f\u70ba\u4e86\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\uff0c\u4e26\u964d\u4f4e\u7528\u6236\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\u7684\u5b78\u7fd2\u66f2\u7dda\u3002<\/p>\n<h2 id=\"dbutils-%e7%9a%84%e4%b8%bb%e8%a6%81%e5%8a%9f%e8%83%bd-JfDXXGLQKg\">dbutils \u7684\u4e3b\u8981\u529f\u80fd<\/h2>\n<ul>\n<li><strong>\u7c21\u5316\u6578\u64da\u5eab\u9023\u63a5\uff1a<\/strong>dbutils \u63d0\u4f9b\u4e86\u7c21\u55ae\u7684\u63a5\u53e3\u4f86\u9023\u63a5\u5404\u7a2e\u6578\u64da\u5eab\uff0c\u5305\u62ec MySQL\u3001PostgreSQL \u548c SQL Server \u7b49\u3002\u7528\u6236\u53ea\u9700\u63d0\u4f9b\u5fc5\u8981\u7684\u9023\u63a5\u53c3\u6578\uff0c\u5373\u53ef\u8f15\u9b06\u5efa\u7acb\u9023\u63a5\u3002<\/li>\n<li><strong>\u57f7\u884c SQL \u67e5\u8a62\uff1a<\/strong>\u7528\u6236\u53ef\u4ee5\u4f7f\u7528 dbutils \u57f7\u884c SQL \u67e5\u8a62\uff0c\u4e26\u7372\u53d6\u7d50\u679c\u3002\u9019\u4f7f\u5f97\u6578\u64da\u6aa2\u7d22\u8b8a\u5f97\u66f4\u52a0\u9ad8\u6548\u3002<\/li>\n<li><strong>\u6578\u64da\u5c0e\u5165\u8207\u5c0e\u51fa\uff1a<\/strong>dbutils \u652f\u6301\u5c07\u6578\u64da\u5f9e\u6578\u64da\u5eab\u5c0e\u5165\u5230 Spark DataFrame\uff0c\u6216\u5c07 DataFrame \u4e2d\u7684\u6578\u64da\u5c0e\u51fa\u5230\u6578\u64da\u5eab\uff0c\u9019\u5c0d\u65bc\u6578\u64da\u5206\u6790\u548c\u8655\u7406\u975e\u5e38\u6709\u7528\u3002<\/li>\n<li><strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u683c\u5f0f\uff1a<\/strong>dbutils \u80fd\u5920\u8655\u7406\u591a\u7a2e\u6578\u64da\u683c\u5f0f\uff0c\u5305\u62ec CSV\u3001JSON \u548c Parquet\uff0c\u9019\u4f7f\u5f97\u6578\u64da\u7684\u8b80\u53d6\u548c\u5beb\u5165\u66f4\u52a0\u9748\u6d3b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-dbutils-%e9%80%b2%e8%a1%8c%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c-JfDXXGLQKg\">\u5982\u4f55\u4f7f\u7528 dbutils \u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 dbutils \u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u57fa\u672c\u793a\u4f8b\uff1a<\/p>\n<pre><code>from pyspark.sql import SparkSession\n\n# \u5275\u5efa SparkSession\nspark = SparkSession.builder \n    .appName(\"DBUtils Example\") \n    .getOrCreate()\n\n# \u9023\u63a5\u5230\u6578\u64da\u5eab\njdbc_url = \"jdbc:mysql:\/\/localhost:3306\/mydatabase\"\nproperties = {\n    \"user\": \"username\",\n    \"password\": \"password\",\n    \"driver\": \"com.mysql.jdbc.Driver\"\n}\n\n# \u5f9e\u6578\u64da\u5eab\u8b80\u53d6\u6578\u64da\ndf = spark.read.jdbc(url=jdbc_url, table=\"mytable\", properties=properties)\n\n# \u986f\u793a\u6578\u64da\ndf.show()\n\n# \u5c07\u6578\u64da\u5beb\u5165\u6578\u64da\u5eab\ndf.write.jdbc(url=jdbc_url, table=\"mytable_output\", mode=\"overwrite\", properties=properties)\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5275\u5efa\u4e86\u4e00\u500b SparkSession\uff0c\u7136\u5f8c\u4f7f\u7528 JDBC \u9023\u63a5\u5230 MySQL \u6578\u64da\u5eab\u3002\u63a5\u8457\uff0c\u6211\u5011\u5f9e\u6578\u64da\u5eab\u4e2d\u8b80\u53d6\u6578\u64da\u4e26\u986f\u793a\u51fa\u4f86\uff0c\u6700\u5f8c\u5c07\u8655\u7406\u5f8c\u7684\u6578\u64da\u5beb\u56de\u5230\u6578\u64da\u5eab\u4e2d\u3002<\/p>\n<h2 id=\"dbutils-%e7%9a%84%e5%84%aa%e5%8b%a2-JfDXXGLQKg\">dbutils \u7684\u512a\u52e2<\/h2>\n<p>\u4f7f\u7528 dbutils \u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6709\u591a\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u6027\uff1a<\/strong>dbutils \u7684\u8a2d\u8a08\u4f7f\u5f97\u6578\u64da\u5eab\u64cd\u4f5c\u66f4\u52a0\u9ad8\u6548\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u6578\u64da\u6642\u3002<\/li>\n<li><strong>\u6613\u7528\u6027\uff1a<\/strong>\u5176\u7c21\u55ae\u7684 API \u4f7f\u5f97\u5373\u4f7f\u662f\u521d\u5b78\u8005\u4e5f\u80fd\u5feb\u901f\u4e0a\u624b\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u683c\u5f0f\u548c\u6578\u64da\u5eab\u985e\u578b\uff0c\u6eff\u8db3\u4e0d\u540c\u7528\u6236\u7684\u9700\u6c42\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-JfDXXGLQKg\">\u7d50\u8ad6<\/h2>\n<p>dbutils \u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u8f15\u9b06\u5730\u64cd\u4f5c\u6578\u64da\u5eab\uff0c\u9032\u884c\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u3002\u7121\u8ad6\u662f\u6578\u64da\u5206\u6790\u3001\u6578\u64da\u6316\u6398\u9084\u662f\u65e5\u5e38\u7684\u6578\u64da\u7ba1\u7406\uff0cdbutils \u90fd\u80fd\u63d0\u4f9b\u6709\u529b\u7684\u652f\u6301\u3002\u5c0d\u65bc\u5e0c\u671b\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u7684\u958b\u767c\u8005\u548c\u4f01\u696d\u4f86\u8aaa\uff0c\u638c\u63e1 dbutils \u5c07\u662f\u4e00\u9805\u91cd\u8981\u7684\u6280\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u64cd\u4f5c\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8f15\u9b06\u64cd\u4f5c\u6578\u64da\u5eab\uff0cdbutils \u52a9\u529b\u6578\u64da\u8655\u7406\uff0c\u63d0\u4f9b\u9ad8\u6548\u4fbf\u6377\u7684\u6578\u64da\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u63d0\u5347\u5de5\u4f5c\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-171645","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171645","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=171645"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171645\/revisions"}],"predecessor-version":[{"id":171646,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171645\/revisions\/171646"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=171645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=171645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=171645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}