{"id":5713,"date":"2024-11-14T10:17:34","date_gmt":"2024-11-14T02:17:34","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5713\/"},"modified":"2024-11-14T10:17:34","modified_gmt":"2024-11-14T02:17:34","slug":"sql%e6%80%8e%e4%b9%88%e8%af%bb%e5%8f%96%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5713\/","title":{"rendered":"sql\u600e\u4e48\u8bfb\u53d6\u4ee3\u7801"},"content":{"rendered":"

\n \u6709\u56db\u79cd\u65b9\u6cd5\u53ef\u4ece sql \u4e2d\u8bfb\u53d6\u4ee3\u7801\uff1a\u4f7f\u7528 load data \u547d\u4ee4\u3001\u5916\u90e8\u6570\u636e\u6e90\u3001\u4e34\u65f6\u8868\u6216\u76f4\u63a5\u4ece\u4ee3\u7801\u4e2d\u8bfb\u53d6\u3002\u9009\u62e9\u6700\u5408\u9002\u7684\u65b9\u6cd5\u53d6\u51b3\u4e8e\u6570\u636e\u91cf\u3001\u8bfb\u53d6\u9891\u7387\u548c\u4ee3\u7801\u7684\u4e34\u65f6\u6027\u3002\n<\/p><\/blockquote>\n

\"sql\u600e\u4e48\u8bfb\u53d6\u4ee3\u7801\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u4f7f\u7528 SQL \u8bfb\u53d6\u4ee3\u7801<\/strong><\/p>\n

\u76f4\u63a5\u8bfb\u53d6<\/strong><\/p>\n

\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 LOAD DATA<\/strong> \u547d\u4ee4\u76f4\u63a5\u4ece\u6587\u4ef6\u8bfb\u53d6\u4ee3\u7801\uff1a<\/p>\n

LOAD DATA INFILE 'path\/to\/file.txt' INTO TABLE code_table;<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4f7f\u7528\u5916\u90e8\u6570\u636e\u6e90<\/strong><\/p>\n
\u5982\u679c\u60a8\u5e0c\u671b\u5b9a\u671f\u8bfb\u53d6\u4ee3\u7801\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u5916\u90e8\u6570\u636e\u6e90\uff1a<\/p>\n
    \n
  1. \u521b\u5efa\u4e00\u4e2a\u5916\u90e8\u8868\uff0c\u6307\u5411\u5305\u542b\u4ee3\u7801\u6587\u4ef6\u7684\u76ee\u5f55\uff1a<\/li>\n<\/ol>\n
    CREATE EXTERNAL TABLE code_table (\n  code STRING\n)\nLOCATION 'path\/to\/directory'\nFORMAT AS TEXTFILE;<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \n
    1. \u67e5\u8be2\u5916\u90e8\u8868\u4ee5\u8bfb\u53d6\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n
      SELECT * FROM code_table;<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236    \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u4f7f\u7528\u4e34\u65f6\u8868<\/strong><\/p>\n
      \u5982\u679c\u60a8\u53ea\u60f3\u4e34\u65f6\u8bfb\u53d6\u4ee3\u7801\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u4e34\u65f6\u8868\uff1a<\/p>\n
        \n
      1. \u521b\u5efa\u4e00\u4e2a\u4e34\u65f6\u8868\uff1a<\/li>\n<\/ol>\n
        CREATE TEMP TABLE code_table (\n  code STRING\n);<\/pre>\n
          \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
          \n
        1. \u5c06\u6587\u4ef6\u5185\u5bb9\u52a0\u8f7d\u5230\u4e34\u65f6\u8868\u4e2d\uff1a<\/li>\n<\/ol>\n
          LOAD DATA LOCAL INFILE 'path\/to\/file.txt' INTO TABLE code_table;<\/pre>\n
            \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
            \n
          1. \u67e5\u8be2\u4e34\u65f6\u8868\u4ee5\u8bfb\u53d6\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n
            SELECT * FROM code_table;<\/pre>\n
              \u767b\u5f55\u540e\u590d\u5236    \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
              \n
            1. \u5220\u9664\u4e34\u65f6\u8868\uff1a<\/li>\n<\/ol>\n
              DROP TABLE code_table;<\/pre>\n
                \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
              \u9009\u62e9\u5408\u9002\u7684\u8bfb\u53d6\u65b9\u6cd5<\/strong><\/p>\n
              \u9009\u62e9\u54ea\u79cd\u8bfb\u53d6\u65b9\u6cd5\u53d6\u51b3\u4e8e\u4ee5\u4e0b\u56e0\u7d20\uff1a<\/p>\n
                \n
              •  \u6570\u636e\u91cf\uff1a<\/strong>\u5982\u679c\u6570\u636e\u91cf\u5f88\u5927\uff0c\u4f7f\u7528\u5916\u90e8\u6570\u636e\u6e90\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u53ef\u6269\u5c55\u6027\u3002<\/li>\n
              •  \u8bfb\u53d6\u9891\u7387\uff1a<\/strong>\u5982\u679c\u9700\u8981\u5b9a\u671f\u8bfb\u53d6\u4ee3\u7801\uff0c\u5916\u90e8\u6570\u636e\u6e90\u53ef\u4ee5\u7b80\u5316\u8fc7\u7a0b\u3002<\/li>\n
              •  \u4e34\u65f6\u6027\uff1a<\/strong>\u5982\u679c\u4ee3\u7801\u662f\u4e34\u65f6\u6027\u7684\uff0c\u4e34\u65f6\u8868\u53ef\u4ee5\u63d0\u4f9b\u4e00\u79cd\u65b9\u4fbf\u7684\u8bfb\u53d6\u65b9\u5f0f\u3002<\/li>\n<\/ul>\n
                \u4ee5\u4e0a\u5c31\u662fsql\u600e\u4e48\u8bfb\u53d6\u4ee3\u7801\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":"
                \u6709\u56db\u79cd\u65b9\u6cd5\u53ef\u4ece sql \u4e2d\u8bfb\u53d6\u4ee3\u7801\uff1a\u4f7f\u7528 load data \u547d\u4ee4\u3001\u5916\u90e8\u6570\u636e\u6e90\u3001\u4e34\u65f6\u8868\u6216\u76f4\u63a5\u4ece\u4ee3\u7801\u4e2d\u8bfb\u53d6\u3002\u9009\u62e9\u6700\u5408\u9002\u7684\u65b9\u6cd5\u53d6\u51b3\u4e8e\u6570\u636e\u91cf\u3001\u8bfb\u53d6\u9891\u7387\u548c\u4ee3\u7801\u7684\u4e34\u65f6\u6027\u3002 \u5982\u4f55\u4f7f\u7528 SQL \u8bfb\u53d6\u4ee3\u7801 \u76f4\u63a5\u8bfb\u53d6 \u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 LOAD DATA \u547d\u4ee4\u76f4\u63a5\u4ece\u6587\u4ef6\u8bfb\u53d6\u4ee3\u7801\uff1a LOAD DATA INFILE ‘path\/to\/file.txt’ INTO TABLE code_table; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u5916\u90e8\u6570\u636e\u6e90 \u5982\u679c\u60a8\u5e0c\u671b\u5b9a\u671f\u8bfb\u53d6\u4ee3\u7801\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u5916\u90e8\u6570\u636e\u6e90\uff1a \u521b\u5efa\u4e00\u4e2a\u5916\u90e8\u8868\uff0c\u6307\u5411\u5305\u542b\u4ee3\u7801\u6587\u4ef6\u7684\u76ee\u5f55\uff1a CREATE EXTERNAL TABLE code_table ( code STRING ) LOCATION ‘path\/to\/directory’ FORMAT AS TEXTFILE; \u767b\u5f55\u540e\u590d\u5236 \u67e5\u8be2\u5916\u90e8\u8868\u4ee5\u8bfb\u53d6\u4ee3\u7801\uff1a SELECT * FROM code_table; \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u4e34\u65f6\u8868 \u5982\u679c\u60a8\u53ea\u60f3\u4e34\u65f6\u8bfb\u53d6\u4ee3\u7801\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u4e34\u65f6\u8868\uff1a \u521b\u5efa\u4e00\u4e2a\u4e34\u65f6\u8868\uff1a CREATE TEMP TABLE code_table ( code […]<\/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-5713","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5713","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=5713"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5713\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5713"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5713"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}