{"id":6697,"date":"2023-04-07T10:35:57","date_gmt":"2023-04-07T02:35:57","guid":{"rendered":"https:\/\/nj.transwarp.cn:8180\/?p=6697"},"modified":"2023-04-07T10:35:57","modified_gmt":"2023-04-07T02:35:57","slug":"%e5%85%b3%e4%ba%8ecsvfile%e5%a4%96%e8%a1%a8%e8%af%bb%e5%8f%96%e8%a1%8c%e6%95%b0%e4%b8%8d%e4%b8%80%e8%87%b4%e7%9a%84%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/kbwp.transwarp.cn\/?p=6697","title":{"rendered":"\u5173\u4e8e csvfile \u5916\u8868\u8bfb\u53d6 hdfs \u6570\u636e\u6761\u6570\u4e0d\u4e00\u81f4\u7684\u95ee\u9898\u4e4b &#8211; quote.delim"},"content":{"rendered":"<h3>\u95ee\u9898\u63cf\u8ff0<\/h3>\n<hr \/>\n<p><strong>\u5173\u4e8equote.delim,\u5b98\u65b9\u89e3\u91ca\u662f\uff1a<\/strong><\/p>\n<p><code>&#039;quote.delim&#039;<\/code> \u5c5e\u6027\u7684\u503c\u6307\u5b9a\u7528\u4ec0\u4e48\u5b57\u7b26\u4f5c\u4e3a <code>quote_delimiter<\/code>\uff0c\u9ed8\u8ba4\u503c\u4e3a<code>\u201c&quot;\u201d<\/code>\u3002\u8fd9\u4e2a\u5b57\u7b26\u7684\u4f5c\u7528\u4e3a\uff1a\u5982\u679c\u5b57\u6bb5\u672c\u8eab\u5305\u542b\u4e86\u5b57\u6bb5\u5206\u9694\u7b26\u3001\u6362\u884c\u7b26\u6216\u8005<code>NULL<\/code>\u503c\u5b57\u7b26\u4f5c\u4e3a\u6570\u636e\u7684\u4e00\u90e8\u5206\uff0c\u5c06\u8be5\u5b57\u6bb5\u653e\u5728\u4e24\u4e2a <code>quote_delimiter<\/code> \u5b57\u7b26\u4e4b\u95f4\u53ef\u4ee5\u8ba9Inceptor\u5c06\u5b57\u6bb5\u5185\u90e8\u51fa\u73b0\u7684\u5b57\u6bb5\u5206\u9694\u7b26\u548c\u6362\u884c\u7b26\u4f5c\u4e3a\u6570\u636e\u5904\u7406\u3002\u540c\u65f6\uff0c\u5728\u4e00\u5bf9 <code>quote_delimiter<\/code> \u5305\u88f9\u7684\u5b57\u6bb5\u5185\u90e8\uff0c<code>quote_delimiter<\/code> \u662f\u81ea\u8eab\u7684\u8f6c\u4e49\u7b26\uff1a\u5982\u679c\u51fa\u73b0\u8fde\u7eed\u7684\u4e24\u4e2a <code>quote_delimiter<\/code>\uff0c\u90a3\u4e48Inceptor\u4f1a\u5c06\u7b2c\u4e8c\u4e2a <code>quote_delimiter<\/code> \u4f5c\u4e3a\u6570\u636e\u7684\u4e00\u90e8\u5206\u5904\u7406\uff0c\u5c06\u7b2c\u4e00\u4e2a <code>quote_delimiter<\/code> \u4f5c\u4e3a\u7b2c\u4e8c\u4e2a\u7684\u8f6c\u4e49\u7b26\u3002<\/p>\n<p><font color=red><code>quote.delim<\/code>\u4e3a\u53cc\u5f15\u53f7\u7684\u60c5\u51b5\u4e0b\uff0c\u8981\u6c42\u53cc\u5f15\u53f7\u5185\u7684<strong>\u53cc\u5f15\u53f7\u5fc5\u987b\u5076\u6570<\/strong>\u5bf9\u51fa\u73b0\uff0c\u5982\u679c\u8fde\u7eed\u51fa\u73b0\uff0c\u4ee3\u8868\u7740\u5bf9\u53cc\u5f15\u53f7\u7684\u8f6c\u4e49\uff0c\u800c\u5355\u4e2a\u5355\u4e2a\u7684\u51fa\u73b0\uff0c\u53cc\u5f15\u53f7\u4f1a\u5e26\u5230\u6570\u636e\u91cc\u9762\u53bb\uff0c\u662f\u6709\u610f\u4e49\u7684\u3002<\/font><\/p>\n<p><font color=red>\u5982\u679c\u975e\u5076\u6570\u5bf9\u51fa\u73b0\uff0c\u5c31\u4f1a\u51fa\u73b0\u6570\u636e\u884c\u6570\u4e22\u5931\u7684\u60c5\u51b5\uff0c\u5168\u90e8\u5806\u5728\u4e00\u5217\u91cc\u9762\u3002<\/font><\/p>\n<h3>\u8be6\u7ec6\u8bf4\u660e<\/h3>\n<hr \/>\n<p>\u4e0b\u9762\u6784\u9020\u4e00\u4e2a\u7b80\u5355\u7684\u573a\u666f\u590d\u73b0\u95ee\u9898\uff1a<\/p>\n<p><strong>\u6784\u5efa\u6837\u4f8b\u8868\uff1a<\/strong><\/p>\n<pre><code class=\"language-sql\">DROP TABLE TRANSACTIONS;\nCREATE external TABLE TRANSACTIONS(\n  trans_id int DEFAULT NULL ,\n  acc_num string DEFAULT NULL ,\n  trans_time string DEFAULT NULL,\n  trans_type string DEFAULT NULL,\n  stock_id string DEFAULT NULL,\n  price double DEFAULT NULL,\n  amount int DEFAULT NULL)\nSTORED AS CSVFILE\n  LOCATION '\/tmp\/lkw115'\nTBLPROPERTIES(\n'field.delim'=',',\n'quote.delim'='\"',\n'line.delim'='\\n') ;<\/code><\/pre>\n<h4>1\u3001\u6b63\u5e38\u60c5\u51b5\uff1aquote_delimiter\u4e3a\u53cc\u5f15\u53f7\u65f6\uff0c\u91cc\u9762\u7684\u53cc\u5f15\u53f7\u5076\u6570\u4e2a\u51fa\u73b0<\/h4>\n<pre><code class=\"language-r\">--\u7b2c\u4e8c\u5217\uff0c\u53cc\u5f15\u53f7\u5185\u7684\u53cc\u5f15\u53f7\u5076\u6570\u5bf9\u51fa\u73b0\uff0c\u6240\u4ee5\u6b63\u5e38\u5c55\u793a\n\"943197522\",\"651\"a\"3065\",\"20140105100520\",\"b\",\"AA7105670\",\"12.13\",\"200\"\n\"943197523\",\"652\"b\"3066\",\"20140105100521\",\"c\",\"AA7105671\",\"12.14\",\"201\"<\/code><\/pre>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/09\/image-1630917833142.png\" alt=\"file\" \/><\/p>\n<h4>2\u3001\u5f02\u5e38\u60c5\u51b51\uff1aquote_delimiter\u4e3a\u53cc\u5f15\u53f7\u65f6\uff0c\u91cc\u9762\u7684\u53cc\u5f15\u53f7\u5947\u6570\u4e2a\u51fa\u73b0\uff0c\u540e\u9762\u4e0d\u518d\u51fa\u73b0\u8fd9\u6837\u7684\u5b57\u7b26\u7ec4\u5408<\/h4>\n<blockquote>\n<p>\u7531\u4e8e\u8be5\u5b57\u7b26\u4e32\u5305\u88f9\u5185\uff0c\u4ee5\u53ca\u540e\u9762\u7684\u5b57\u7b26\u4e32\uff0c\u627e\u4e0d\u5230\u7ed3\u5c3e\u7684\u90a3\u4e2a\u53cc\u5f15\u53f7\uff0c\u6240\u4ee5\u8be5\u5b57\u6bb5\u56ca\u62ec\u4e86\u540e\u9762\u7684\u6240\u6709\u6570\u636e\uff08\u751a\u81f3\u5305\u62ec\u4e86line.delim\u7684\u6362\u884c\u7b26\uff09\uff0c\u540e\u9762\u5b57\u6bb5\u7684\u6570\u636e\u5168\u90e8\u4e3anull\u3002\u6700\u7ec8\u7684\u8868\u73b0\u5c31\u662f\uff0c2\u884c\u6570\u636e\uff0c\u5b9e\u9645\u4e0a\u53ea\u67091\u884c\u6570\u636eload\u5230\u4e86csv\u5916\u8868<\/p>\n<\/blockquote>\n<pre><code class=\"language-r\">--\u4e0b\u9762\u8fd9\u884c\uff0c\"651\"a\u201d3065\"\uff0c\u5b57\u6bcda\u540e\u9762\u662f\u4e2d\u6587\u53cc\u5f15\u53f7\u3002\n--\u6240\u4ee5\u6700\u7ec8\u7ed3\u679c\u662f\uff0c\u5b9e\u96452\u884c\u6570\u636e\uff0c\u5bfc\u81f4\u6700\u7ec8csvfile\u8868\u7684\u67e5\u8be2\u7ed3\u679c\u4e3a1\u884c\u3002\n\"943197522\",\"651\"a\u201d3065\",\"20140105100520\",\"b\",\"AA7105670\",\"12.13\",\"200\"\n\"943197523\",\"652\"b\"3066\",\"20140105100521\",\"c\",\"AA7105671\",\"12.14\",\"201\"<\/code><\/pre>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/09\/image-1630917915795.png\" alt=\"file\" \/><\/p>\n<h4>3\u3001\u5f02\u5e38\u60c5\u51b52\uff1aquote_delimiter\u4e3a\u53cc\u5f15\u53f7\u65f6\uff0c\u91cc\u9762\u7684\u53cc\u5f15\u53f7\u5947\u6570\u4e2a\u51fa\u73b0\uff0c\u540e\u9762\u518d\u6b21\u51fa\u73b0\u8fd9\u6837\u7684\u5b57\u7b26\u7ec4\u5408<\/h4>\n<blockquote>\n<p>\u7531\u4e8e\u5728\u8be5\u5b57\u7b26\u4e32\u5305\u88f9\u5185\u627e\u4e0d\u5230\u7ed3\u5c3e\u7684\u90a3\u4e2a\u53cc\u5f15\u53f7\uff0c\u6240\u4ee5\u8be5\u5b57\u6bb5\u56ca\u62ec\u4e86\u540e\u9762\u7684\u6240\u6709\u6570\u636e\uff08\u751a\u81f3\u5305\u62ec\u4e86line.delim\u7684\u6362\u884c\u7b26\uff09\uff0c\u76f4\u5230\u5728\u7b2c\u4e09\u884c\u540c\u6837\u7684\u5f02\u5e38\u6570\u636e\u5217\uff0c\u627e\u5230\u4e86\u53e6\u5916\u4e00\u4e2a\u53cc\u5f15\u53f7\uff0c\u6240\u4ee5\u6700\u7ec8\u7684\u8868\u73b0\u5c31\u662f\uff0c3\u884c\u6570\u636e\uff0c\u5b9e\u9645\u4e0a\u53ea\u67091\u884c\u6570\u636eload\u5230\u4e86csv\u5916\u8868<\/p>\n<\/blockquote>\n<pre><code class=\"language-r\">--\u7b2c\u4e00\u884c\uff0c\"651\"a\u201d3065\"\uff0c\u5b57\u6bcda\u540e\u9762\u662f\u4e2d\u6587\u53cc\u5f15\u53f7\n--\u7b2c\u4e09\u884c\uff0c\"653\"c\u201d3067\"\uff0c\u5b57\u6bcdc\u540e\u9762\u662f\u4e2d\u6587\u53cc\u5f15\u53f7\n--\u6240\u4ee5\u6700\u7ec8\u7ed3\u679c\u662f\uff0c\u5b9e\u96453\u884c\u6570\u636e\uff0c\u5bfc\u81f4\u6700\u7ec8csvfile\u8868\u7684\u67e5\u8be2\u7ed3\u679c\u4e3a1\u884c\u3002\n\"943197522\",\"651\"a\u201d3065\",\"20140105100520\",\"b\",\"AA7105670\",\"12.13\",\"200\"\n\"943197523\",\"652\"b\"3066\",\"20140105100521\",\"c\",\"AA7105671\",\"12.14\",\"201\"\n\"943197524\",\"653\"c\u201d3067\",\"20140105100522\",\"d\",\"AA7105672\",\"12.15\",\"202\"<\/code><\/pre>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/09\/image-1630917911101.png\" alt=\"file\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u95ee\u9898\u63cf\u8ff0 \u5173\u4e8equote.delim,\u5b98\u65b9\u89e3\u91ca\u662f\uff1a &#039;quote.delim&#039; \u5c5e\u6027\u7684\u503c\u6307 ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/kbwp.transwarp.cn\/?p=6697\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6697","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/6697","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6697"}],"version-history":[{"count":3,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/6697\/revisions"}],"predecessor-version":[{"id":10055,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/6697\/revisions\/10055"}],"wp:attachment":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6697"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6697"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6697"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}