{"id":477062,"date":"2023-08-09T09:06:59","date_gmt":"2023-08-09T09:06:59","guid":{"rendered":""},"modified":"2023-09-05T11:13:56","modified_gmt":"2023-09-05T11:13:56","slug":"elt","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/cn\/wiki\/elt\/","title":{"rendered":"\u82f1\u8bed\u8bed\u8a00\u57f9\u8bad"},"content":{"rendered":"

ELT\u662fExtract\u3001Load\u3001Transform\u7684\u7f29\u5199\uff0c\u662f\u4e00\u79cd\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6570\u636e\u4ed3\u5e93\u548c\u5546\u4e1a\u667a\u80fd\u9886\u57df\u7684\u6570\u636e\u96c6\u6210\u6d41\u7a0b\u3002\u5b83\u662f\u6307\u5728\u6570\u636e\u96c6\u6210\u8fc7\u7a0b\u4e2d\u7ba1\u7406\u6570\u636e\u7684\u987a\u5e8f\u3002 ELT \u7684\u6838\u5fc3\u662f\u4ece\u5404\u79cd\u6765\u6e90\u63d0\u53d6\u539f\u59cb\u6570\u636e\uff0c\u5c06\u5176\u52a0\u8f7d\u5230\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\u4e2d\uff0c\u7136\u540e\u5c06\u5176\u8f6c\u6362\u4e3a\u7ed3\u6784\u5316\u4e14\u53ef\u7528\u7684\u683c\u5f0f\u4ee5\u8fdb\u884c\u5206\u6790\u548c\u62a5\u544a\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8 ELT \u7684\u5386\u53f2\u3001\u5de5\u4f5c\u539f\u7406\u3001\u7c7b\u578b\u548c\u672a\u6765\u524d\u666f\uff0c\u540c\u65f6\u63a2\u8ba8\u5176\u4e0e\u4ee3\u7406\u670d\u52a1\u5668\u7684\u5173\u8054\u3002<\/p>\n

ELT \u7684\u8d77\u6e90\u548c\u9996\u6b21\u63d0\u53ca\u7684\u5386\u53f2<\/h2>\n

ELT \u7684\u6982\u5ff5\u662f\u4f5c\u4e3a\u4f20\u7edf ETL\uff08\u63d0\u53d6\u3001\u8f6c\u6362\u3001\u52a0\u8f7d\uff09\u8fc7\u7a0b\u7684\u53d8\u4f53\u800c\u6f14\u53d8\u7684\u3002 ETL \u6d41\u7a0b\u591a\u5e74\u6765\u4e00\u76f4\u5360\u636e\u4e3b\u5bfc\u5730\u4f4d\uff0c\u5176\u4e2d\u6570\u636e\u9996\u5148\u4ece\u6e90\u7cfb\u7edf\u4e2d\u63d0\u53d6\uff0c\u7136\u540e\u8fdb\u884c\u8f6c\u6362\u4ee5\u6ee1\u8db3\u7279\u5b9a\u8981\u6c42\uff0c\u6700\u540e\u52a0\u8f7d\u5230\u6570\u636e\u4ed3\u5e93\u4e2d\u3002\u7136\u800c\uff0c\u968f\u7740\u5927\u6570\u636e\u7684\u51fa\u73b0\u548c\u5b9e\u65f6\u5904\u7406\u7684\u9700\u6c42\uff0c\u4f20\u7edf\u7684ETL\u65b9\u6cd5\u9762\u4e34\u7740\u53ef\u6269\u5c55\u6027\u548c\u6027\u80fd\u65b9\u9762\u7684\u6311\u6218\u3002<\/p>\n

\u6700\u65e9\u63d0\u5230 ELT \u53ef\u4ee5\u8ffd\u6eaf\u5230 2000 \u5e74\u4ee3\u521d\uff0c\u5f53\u65f6\u6570\u636e\u5de5\u7a0b\u5e08\u548c\u67b6\u6784\u5e08\u5f00\u59cb\u5c1d\u8bd5\u4f7f\u7528\u66ff\u4ee3\u65b9\u6cd5\u6765\u6709\u6548\u7ba1\u7406\u5927\u91cf\u6570\u636e\u3002 ELT\u4f5c\u4e3a\u4e00\u79cd\u5c06\u5904\u7406\u8d1f\u62c5\u4eceETL\u670d\u52a1\u5668\u5378\u8f7d\u5230\u76ee\u6807\u6570\u636e\u4ed3\u5e93\u7684\u89e3\u51b3\u65b9\u6848\u800c\u88ab\u63d0\u51fa\uff0c\u76ee\u6807\u6570\u636e\u4ed3\u5e93\u914d\u5907\u4e86\u66f4\u5f3a\u5927\u7684\u5904\u7406\u80fd\u529b\u3002\u5904\u7406\u903b\u8f91\u7684\u8fd9\u79cd\u8f6c\u53d8\u4e3a\u6570\u636e\u96c6\u6210\u5f00\u8f9f\u4e86\u65b0\u7684\u53ef\u80fd\u6027\uff0c\u4f7f\u7ec4\u7ec7\u80fd\u591f\u5229\u7528\u5927\u6570\u636e\u7684\u6f5c\u529b\u3002<\/p>\n

\u6709\u5173 ELT \u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u6269\u5c55 ELT \u4e3b\u9898<\/h2>\n

ELT \u8fc7\u7a0b\u53ef\u4ee5\u5206\u4e3a\u4e09\u4e2a\u4e0d\u540c\u7684\u9636\u6bb5\uff1a<\/p>\n

    \n
  1. \n

    \u63d0\u70bc<\/strong>\uff1a\u5728\u8fd9\u4e2a\u521d\u59cb\u9636\u6bb5\uff0c\u6570\u636e\u662f\u4ece\u5f02\u6784\u6e90\u63d0\u53d6\u7684\uff0c\u5305\u62ec\u6570\u636e\u5e93\u3001\u4e91\u5b58\u50a8\u3001Web API\u3001\u65e5\u5fd7\u3001\u7535\u5b50\u8868\u683c\u7b49\u3002\u6570\u636e\u901a\u5e38\u662f\u539f\u59cb\u7684\u3001\u672a\u7ecf\u5904\u7406\u7684\u5f62\u5f0f\u3002<\/p>\n<\/li>\n

  2. \n

    \u52a0\u8f7d<\/strong>\uff1a\u6570\u636e\u63d0\u53d6\u540e\uff0c\u5c06\u5176\u52a0\u8f7d\u5230\u76ee\u6807\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\u4e2d\uff0c\u8be5\u7cfb\u7edf\u53ef\u4ee5\u662f\u6570\u636e\u4ed3\u5e93\u3001\u6570\u636e\u6e56\u6216\u4efb\u4f55\u5176\u4ed6\u9002\u5f53\u7684\u5b58\u50a8\u5e93\u3002\u6570\u636e\u4ee5\u539f\u59cb\u72b6\u6001\u5b58\u50a8\uff0c\u65e0\u9700\u4efb\u4f55\u91cd\u5927\u8f6c\u6362\u3002<\/p>\n<\/li>\n

  3. \n

    \u8f6c\u6362<\/strong>\uff1a\u8f6c\u6362\u9636\u6bb5\u53d1\u751f\u5728\u76ee\u6807\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\u5185\u3002\u6570\u636e\u5de5\u7a0b\u5e08\u4f7f\u7528\u5404\u79cd\u6570\u636e\u8f6c\u6362\u6280\u672f\u6765\u5904\u7406\u3001\u6e05\u7406\u3001\u4e30\u5bcc\u548c\u805a\u5408\u6570\u636e\uff0c\u4f7f\u5176\u9002\u5408\u5206\u6790\u548c\u62a5\u544a\u3002\u8f6c\u6362\u53ef\u80fd\u6d89\u53ca\u6570\u636e\u6807\u51c6\u5316\u3001\u91cd\u590d\u6570\u636e\u5220\u9664\u3001\u6570\u636e\u4e30\u5bcc\u7b49\u3002<\/p>\n<\/li>\n<\/ol>\n

    ELT \u7684\u5185\u90e8\u7ed3\u6784\u3002\u82f1\u8bed\u6559\u5b66 (ELT) \u7684\u8fd0\u4f5c\u65b9\u5f0f<\/h2>\n

    ELT \u6d41\u7a0b\u901a\u5e38\u901a\u8fc7\u4e13\u95e8\u7684\u6570\u636e\u96c6\u6210\u5de5\u5177\u6216\u5e73\u53f0\u6267\u884c\u3002\u8fd9\u4e9b\u5de5\u5177\u6709\u52a9\u4e8e\u4ece\u4e0d\u540c\u6765\u6e90\u63d0\u53d6\u6570\u636e\u5e76\u81ea\u52a8\u5316\u52a0\u8f7d\u548c\u8f6c\u6362\u8fc7\u7a0b\u3002 ELT \u7cfb\u7edf\u7684\u5173\u952e\u7ec4\u4ef6\u5305\u62ec\uff1a<\/p>\n

      \n
    1. \n

      \u6570\u636e\u8fde\u63a5\u5668<\/strong>\uff1a\u8fd9\u4e9b\u8fde\u63a5\u5668\u8d1f\u8d23\u5efa\u7acb\u4e0e\u4e0d\u540c\u6570\u636e\u6e90\u7684\u8fde\u63a5\uff0c\u5141\u8bb8 ELT \u5de5\u5177\u4ece\u4e2d\u63d0\u53d6\u6570\u636e\u3002\u6bcf\u4e2a\u6570\u636e\u6e90\u53ef\u80fd\u9700\u8981\u9002\u5408\u5176\u6570\u636e\u683c\u5f0f\u548c\u534f\u8bae\u7684\u7279\u5b9a\u8fde\u63a5\u5668\u3002<\/p>\n<\/li>\n

    2. \n

      \u6682\u5b58\u533a<\/strong>\uff1a\u6570\u636e\u63d0\u53d6\u540e\uff0c\u5728\u52a0\u8f7d\u5230\u76ee\u6807\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\u4e4b\u524d\uff0c\u4f1a\u6682\u65f6\u5b58\u50a8\u5728\u6682\u5b58\u533a\u4e2d\u3002\u6682\u5b58\u533a\u57df\u6709\u52a9\u4e8e\u7ba1\u7406\u6570\u636e\u6d41\u5e76\u786e\u4fdd\u52a0\u8f7d\u8fc7\u7a0b\u4e2d\u7684\u6570\u636e\u5b8c\u6574\u6027\u3002<\/p>\n<\/li>\n

    3. \n

      \u6570\u636e\u4ed3\u5e93\u6216\u6570\u636e\u5b58\u50a8\u7cfb\u7edf<\/strong>\uff1a\u8fd9\u662f\u52a0\u8f7d\u548c\u8f6c\u6362\u63d0\u53d6\u7684\u6570\u636e\u7684\u6700\u7ec8\u76ee\u7684\u5730\u3002\u5b83\u53ef\u4ee5\u662f\u6570\u636e\u4ed3\u5e93\u3001\u6570\u636e\u6e56\u6216\u4efb\u4f55\u5176\u4ed6\u6570\u636e\u5b58\u50a8\u57fa\u7840\u8bbe\u65bd\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u7ec4\u7ec7\u7684\u8981\u6c42\u3002<\/p>\n<\/li>\n

    4. \n

      \u6570\u636e\u8f6c\u6362\u5f15\u64ce<\/strong>\uff1a\u8be5\u7ec4\u4ef6\u5904\u7406\u6570\u636e\u8f6c\u6362\u4efb\u52a1\u3002\u5b83\u6267\u884c\u9884\u5b9a\u4e49\u7684\u6570\u636e\u8f6c\u6362\u903b\u8f91\u6216\u81ea\u5b9a\u4e49\u811a\u672c\u6765\u6e05\u7406\u3001\u5408\u5e76\u548c\u4e30\u5bcc\u6570\u636e\u3002<\/p>\n<\/li>\n

    5. \n

      \u76d1\u63a7\u548c\u9519\u8bef\u5904\u7406<\/strong>\uff1aELT \u7cfb\u7edf\u901a\u5e38\u5177\u6709\u5185\u7f6e\u76d1\u63a7\u529f\u80fd\uff0c\u7528\u4e8e\u8ddf\u8e2a\u6570\u636e\u96c6\u6210\u4f5c\u4e1a\u7684\u8fdb\u5ea6\u5e76\u8bc6\u522b\u5728\u6b64\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u51fa\u73b0\u7684\u4efb\u4f55\u9519\u8bef\u6216\u95ee\u9898\u3002<\/p>\n<\/li>\n<\/ol>\n

      ELT \u7684\u4e3b\u8981\u7279\u70b9\u5206\u6790<\/h2>\n

      \u4e0e\u4f20\u7edf ETL \u6d41\u7a0b\u76f8\u6bd4\uff0cELT \u5177\u6709\u591a\u79cd\u4f18\u52bf\uff0c\u4f7f\u5176\u6210\u4e3a\u73b0\u4ee3\u6570\u636e\u96c6\u6210\u573a\u666f\u7684\u6d41\u884c\u9009\u62e9\uff1a<\/p>\n

        \n
      1. \n

        \u53ef\u6269\u5c55\u6027<\/strong>\uff1aELT \u5229\u7528\u76ee\u6807\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\u7684\u5904\u7406\u80fd\u529b\uff0c\u4f7f\u5176\u80fd\u591f\u8f7b\u677e\u5904\u7406\u5927\u91cf\u6570\u636e\u3002\u968f\u7740\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\u7684\u6269\u5c55\uff0cELT \u53ef\u4ee5\u6ee1\u8db3\u4e0d\u65ad\u589e\u957f\u7684\u6570\u636e\u9700\u6c42\u3002<\/p>\n<\/li>\n

      2. \n

        \u5b9e\u65f6\u5904\u7406<\/strong>\uff1aELT \u652f\u6301\u5b9e\u65f6\u6216\u8fd1\u4e4e\u5b9e\u65f6\u7684\u6570\u636e\u96c6\u6210\uff0c\u4f7f\u5176\u9002\u5408\u9700\u8981\u6700\u65b0\u8fd0\u8425\u548c\u51b3\u7b56\u6d41\u7a0b\u6d1e\u5bdf\u7684\u4f01\u4e1a\u3002<\/p>\n<\/li>\n

      3. \n

        \u6210\u672c\u6548\u76ca<\/strong>\uff1a\u901a\u8fc7\u5c06\u6570\u636e\u8f6c\u6362\u5378\u8f7d\u5230\u76ee\u6807\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\uff0cELT \u51cf\u5c11\u4e86\u5bf9\u6602\u8d35\u7684 ETL \u670d\u52a1\u5668\u7684\u9700\u6c42\uff0c\u4ece\u800c\u8282\u7701\u4e86\u6210\u672c\u3002<\/p>\n<\/li>\n

      4. \n

        \u7075\u6d3b\u6027<\/strong>\uff1aELT \u5141\u8bb8\u6570\u636e\u5de5\u7a0b\u5e08\u76f4\u63a5\u5728\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\u5185\u6267\u884c\u6570\u636e\u8f6c\u6362\uff0c\u4ece\u800c\u4e3a\u4ed6\u4eec\u63d0\u4f9b\u66f4\u5927\u7684\u7075\u6d3b\u6027\u6765\u5c1d\u8bd5\u4e0d\u540c\u7684\u8f6c\u6362\u6280\u672f\u3002<\/p>\n<\/li>\n

      5. \n

        \u7b80\u5316\u67b6\u6784<\/strong>\uff1aELT \u6d88\u9664\u4e86\u5bf9\u4e2d\u95f4\u6682\u5b58\u6570\u636e\u5e93\u7684\u9700\u6c42\u5e76\u964d\u4f4e\u4e86\u590d\u6742\u6027\uff0c\u4ece\u800c\u7b80\u5316\u4e86\u6574\u4f53\u6570\u636e\u96c6\u6210\u67b6\u6784\u3002<\/p>\n<\/li>\n<\/ol>\n

        \u82f1\u8bed\u6559\u5b66\u7684\u7c7b\u578b<\/h2>\n

        \u6839\u636e\u5176\u5b9e\u65bd\u548c\u8303\u56f4\uff0cELT \u53ef\u4ee5\u5206\u4e3a\u4e0d\u540c\u7c7b\u578b\uff1a<\/p>\n\n\n\n\n\n\n\n
        \u7c7b\u578b<\/th>\n\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n
        \u672c\u5730 ELT<\/td>\n\u5728\u8fd9\u79cd\u7c7b\u578b\u4e2d\uff0cELT \u6d41\u7a0b\u5728\u7ec4\u7ec7\u573a\u6240\u5185\u7684\u672c\u5730\u670d\u52a1\u5668\u4e0a\u6267\u884c\u3002\u5b83\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u63a7\u5236\uff0c\u4f46\u5728\u53ef\u6269\u5c55\u6027\u65b9\u9762\u53ef\u80fd\u5b58\u5728\u9650\u5236\u3002<\/td>\n<\/tr>\n
        \u57fa\u4e8e\u4e91\u7684 ELT<\/td>\n\u57fa\u4e8e\u4e91\u7684 ELT \u6d89\u53ca\u5728\u4e91\u57fa\u7840\u8bbe\u65bd\u4e0a\u8fd0\u884c ELT \u6d41\u7a0b\uff0c\u5229\u7528\u4e91\u8ba1\u7b97\u670d\u52a1\u7684\u53ef\u6269\u5c55\u6027\u548c\u6210\u672c\u6548\u76ca\u3002\u5b83\u9002\u5408\u5177\u6709\u591a\u79cd\u6570\u636e\u6e90\u548c\u9ad8\u6570\u636e\u91cf\u7684\u7ec4\u7ec7\u3002<\/td>\n<\/tr>\n
        \u5b9e\u65f6\u82f1\u8bed\u6559\u5b66<\/td>\n\u5b9e\u65f6 ELT \u4e13\u6ce8\u4e8e\u5373\u65f6\u6570\u636e\u96c6\u6210\uff0c\u4f7f\u7ec4\u7ec7\u80fd\u591f\u5b9e\u65f6\u5904\u7406\u548c\u5206\u6790\u6570\u636e\u3002\u8fd9\u5bf9\u4e8e\u65f6\u95f4\u654f\u611f\u7684\u5e94\u7528\u7a0b\u5e8f\u548c\u4e1a\u52a1\u81f3\u5173\u91cd\u8981\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        ELT \u7684\u4f7f\u7528\u65b9\u6cd5\u3001\u4f7f\u7528\u76f8\u5173\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6848<\/h2>\n

        ELT \u5728\u5404\u884c\u4e1a\u7684\u5404\u79cd\u573a\u666f\u4e2d\u90fd\u6709\u5e94\u7528\uff0c\u5305\u62ec\uff1a<\/p>\n

          \n
        1. \n

          \u5546\u4e1a\u667a\u80fd<\/strong>\uff1aELT \u53ef\u4ee5\u96c6\u6210\u4e0d\u540c\u6765\u6e90\u7684\u6570\u636e\uff0c\u63d0\u4f9b\u7ec4\u7ec7\u8fd0\u8425\u7684\u5168\u9762\u89c6\u56fe\u3002\u8fd9\u6709\u52a9\u4e8e\u4ea7\u751f\u53ef\u64cd\u4f5c\u7684\u89c1\u89e3\uff0c\u4ee5\u505a\u51fa\u66f4\u597d\u7684\u51b3\u7b56\u3002<\/p>\n<\/li>\n

        2. \n

          \u6570\u636e\u4ed3\u5e93<\/strong>\uff1aELT \u662f\u6570\u636e\u4ed3\u5e93\u7cfb\u7edf\u7684\u652f\u67f1\uff0c\u5b83\u52a0\u8f7d\u6570\u636e\u5e76\u5c06\u5176\u8f6c\u6362\u4e3a\u9002\u5408\u5386\u53f2\u5206\u6790\u7684\u683c\u5f0f\u3002<\/p>\n<\/li>\n

        3. \n

          \u6570\u636e\u8fc1\u79fb<\/strong>\uff1a\u5728\u6570\u636e\u4ece\u4e00\u4e2a\u7cfb\u7edf\u8fc1\u79fb\u5230\u53e6\u4e00\u4e2a\u7cfb\u7edf\u7684\u8fc7\u7a0b\u4e2d\uff0cELT \u5728\u6709\u6548\u79fb\u52a8\u548c\u8f6c\u6362\u6570\u636e\u65b9\u9762\u53d1\u6325\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/p>\n<\/li>\n

        4. \n

          \u5b9e\u65f6\u5206\u6790<\/strong>\uff1a\u5bf9\u4e8e\u9700\u8981\u5b9e\u65f6\u5206\u6790\u7684\u4f01\u4e1a\uff0cELT \u53ef\u786e\u4fdd\u6570\u636e\u5728\u53ef\u7528\u65f6\u6301\u7eed\u83b7\u53d6\u548c\u8f6c\u6362\u3002<\/p>\n<\/li>\n<\/ol>\n

          \u5e38\u89c1\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6848\uff1a<\/h3>\n
            \n
          1. \n

            \u6570\u636e\u8d28\u91cf\u95ee\u9898<\/strong>\uff1a\u4f4e\u8d28\u91cf\u7684\u6570\u636e\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4e0d\u51c6\u786e\u7684\u89c1\u89e3\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u8bf7\u5728\u8f6c\u6362\u9636\u6bb5\u5b9e\u65bd\u6570\u636e\u9a8c\u8bc1\u68c0\u67e5\u548c\u6570\u636e\u6e05\u7406\u8fc7\u7a0b\u3002<\/p>\n<\/li>\n

          2. \n

            \u6570\u636e\u91cf\u548c\u5ef6\u8fdf<\/strong>\uff1a\u5904\u7406\u5927\u6570\u636e\u91cf\u548c\u4f4e\u5ef6\u8fdf\u8981\u6c42\u53ef\u80fd\u5177\u6709\u6311\u6218\u6027\u3002\u8003\u8651\u5206\u5e03\u5f0f\u5904\u7406\u6846\u67b6\u548c\u7f13\u5b58\u673a\u5236\u6765\u6709\u6548\u5904\u7406\u9ad8\u6570\u636e\u8d1f\u8f7d\u3002<\/p>\n<\/li>\n

          3. \n

            \u6570\u636e\u5b89\u5168<\/strong>\uff1a\u6570\u636e\u9690\u79c1\u548c\u5b89\u5168\u81f3\u5173\u91cd\u8981\u3002\u4f7f\u7528\u52a0\u5bc6\u548c\u8bbf\u95ee\u63a7\u5236\u6765\u4fdd\u62a4\u6574\u4e2a ELT \u8fc7\u7a0b\u4e2d\u7684\u654f\u611f\u4fe1\u606f\u3002<\/p>\n<\/li>\n

          4. \n

            \u9519\u8bef\u5904\u7406<\/strong>\uff1a\u5b9e\u65bd\u5168\u9762\u7684\u9519\u8bef\u5904\u7406\u673a\u5236\u6765\u6355\u83b7\u548c\u7ba1\u7406\u6570\u636e\u96c6\u6210\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u7684\u4efb\u4f55\u95ee\u9898\u3002<\/p>\n<\/li>\n<\/ol>\n

            \u4e3b\u8981\u7279\u70b9\u53ca\u5176\u4ed6\u4e0e\u540c\u7c7b\u4ea7\u54c1\u7684\u6bd4\u8f83<\/h2>\n\n\n\n\n\n\n\n\n
            \u5b66\u671f<\/th>\n\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n
            ETL<\/td>\nETL\uff08\u63d0\u53d6\u3001\u8f6c\u6362\u3001\u52a0\u8f7d\uff09\u662f ELT \u7684\u524d\u8eab\uff0c\u9075\u5faa\u987a\u5e8f\u6570\u636e\u96c6\u6210\u65b9\u6cd5\u3002<\/td>\n<\/tr>\n
            \u73af\u5883\u5f71\u54cd\u8bc4\u4ef7<\/td>\nEAI\uff08\u4f01\u4e1a\u5e94\u7528\u96c6\u6210\uff09\u4e13\u6ce8\u4e8e\u96c6\u6210\u4f01\u4e1a\u5185\u7684\u5404\u79cd\u5e94\u7528\u7a0b\u5e8f\u3002<\/td>\n<\/tr>\n
            \u6570\u636e\u6e56<\/td>\n\u6570\u636e\u6e56\u662f\u4e00\u4e2a\u96c6\u4e2d\u5b58\u50a8\u5e93\uff0c\u7528\u4e8e\u5b58\u50a8\u539f\u59cb\u3001\u672a\u5904\u7406\u7684\u6570\u636e\uff0c\u5141\u8bb8\u7075\u6d3b\u7684\u6570\u636e\u63a2\u7d22\u3002<\/td>\n<\/tr>\n
            \u6570\u636e\u5e93<\/td>\n\u6570\u636e\u96c6\u5e02\u662f\u6570\u636e\u4ed3\u5e93\u7684\u5b50\u96c6\uff0c\u4e13\u6ce8\u4e8e\u7279\u5b9a\u7684\u4e1a\u52a1\u529f\u80fd\u6216\u7528\u6237\u7ec4\u7684\u6570\u636e\u9700\u6c42\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            \u4e0e ELT \u76f8\u5173\u7684\u672a\u6765\u524d\u666f\u548c\u6280\u672f<\/h2>\n

            ELT \u7684\u672a\u6765\u5145\u6ee1\u5e0c\u671b\uff0c\u6709\u591a\u79cd\u8d8b\u52bf\u548c\u6280\u672f\u5851\u9020\u4e86\u5176\u53d1\u5c55\uff1a<\/p>\n

              \n
            1. \n

              \u589e\u5f3a\u6570\u636e\u96c6\u6210<\/strong>\uff1a\u4eba\u5de5\u667a\u80fd\u548c\u673a\u5668\u5b66\u4e60\u5c06\u5728\u81ea\u52a8\u5316\u6570\u636e\u96c6\u6210\u4efb\u52a1\u3001\u63d0\u9ad8 ELT \u6d41\u7a0b\u6548\u7387\u65b9\u9762\u53d1\u6325\u66f4\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/p>\n<\/li>\n

            2. \n

              \u65e0\u670d\u52a1\u5668\u67b6\u6784<\/strong>\uff1a\u65e0\u670d\u52a1\u5668\u8ba1\u7b97\u53ef\u4ee5\u901a\u8fc7\u62bd\u8c61\u57fa\u7840\u8bbe\u65bd\u7ba1\u7406\u6765\u8fdb\u4e00\u6b65\u7b80\u5316 ELT\uff0c\u4ece\u800c\u66f4\u52a0\u5173\u6ce8\u6570\u636e\u8f6c\u6362\u3002<\/p>\n<\/li>\n

            3. \n

              \u6570\u636e\u7f51\u683c<\/strong>\uff1a\u6570\u636e\u7f51\u683c\u7684\u6982\u5ff5\u63d0\u5021\u53bb\u4e2d\u5fc3\u5316\u7684\u6570\u636e\u6240\u6709\u6743\u548c\u7279\u5b9a\u9886\u57df\u7684\u6570\u636e\u56e2\u961f\uff0c\u8fd9\u53ef\u4ee5\u5f71\u54cd\u7ec4\u7ec7\u5185\u7684 ELT \u5b9e\u8df5\u3002<\/p>\n<\/li>\n<\/ol>\n

              \u5982\u4f55\u4f7f\u7528\u4ee3\u7406\u670d\u52a1\u5668\u6216\u5c06\u4ee3\u7406\u670d\u52a1\u5668\u4e0e ELT \u5173\u8054<\/h2>\n

              \u4ee3\u7406\u670d\u52a1\u5668\u5728 ELT \u4e2d\u53d1\u6325\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u5c24\u5176\u662f\u5728\u57fa\u4e8e\u4e91\u7684\u5b9e\u65f6\u5b9e\u65bd\u4e2d\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u4ee3\u7406\u670d\u52a1\u5668\u6216\u5c06\u4ee3\u7406\u670d\u52a1\u5668\u4e0e ELT \u5173\u8054\u7684\u4e00\u4e9b\u65b9\u6cd5\uff1a<\/p>\n

                \n
              1. \n

                \u6570\u636e\u6e90\u91cd\u5b9a\u5411<\/strong>\uff1a\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u5c06\u6765\u81ea\u5404\u79cd\u6765\u6e90\u7684\u6570\u636e\u8bf7\u6c42\u91cd\u5b9a\u5411\u5230\u7279\u5b9a\u7684 ELT \u670d\u52a1\u5668\uff0c\u4ece\u800c\u4f18\u5316\u6570\u636e\u63d0\u53d6\u3002<\/p>\n<\/li>\n

              2. \n

                \u7f13\u5b58\u548c\u8d1f\u8f7d\u5e73\u8861<\/strong>\uff1a\u4ee3\u7406\u53ef\u4ee5\u7f13\u5b58\u9891\u7e41\u8bf7\u6c42\u7684\u6570\u636e\uff0c\u51cf\u5c11 ELT \u7cfb\u7edf\u7684\u8d1f\u8f7d\u5e76\u7f29\u77ed\u54cd\u5e94\u65f6\u95f4\u3002<\/p>\n<\/li>\n

              3. \n

                \u5b89\u5168\u548c\u9690\u79c1<\/strong>\uff1a\u4ee3\u7406\u5145\u5f53\u4e2d\u4ecb\uff0c\u5728\u6570\u636e\u6e90\u548c ELT \u57fa\u7840\u8bbe\u65bd\u4e4b\u95f4\u6dfb\u52a0\u989d\u5916\u7684\u5b89\u5168\u5c42\uff0c\u786e\u4fdd\u6570\u636e\u9690\u79c1\u3002<\/p>\n<\/li>\n

              4. \n

                \u5168\u7403\u6570\u636e\u6536\u96c6<\/strong>\uff1a\u5728\u5206\u5e03\u5f0f ELT \u73af\u5883\u4e2d\uff0c\u4ee3\u7406\u53ef\u4ee5\u4ece\u4e0d\u540c\u5730\u7406\u4f4d\u7f6e\u6536\u96c6\u6570\u636e\u5e76\u5c06\u5176\u8def\u7531\u5230\u4e2d\u592e ELT \u670d\u52a1\u5668\u3002<\/p>\n<\/li>\n<\/ol>\n

                \u76f8\u5173\u94fe\u63a5<\/h2>\n

                \u6709\u5173 ELT\u3001\u6570\u636e\u96c6\u6210\u548c\u6570\u636e\u4ed3\u5e93\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u67e5\u770b\u4ee5\u4e0b\u8d44\u6e90\uff1a<\/p>\n

                  \n
                1. ELT \u4e0e ETL\uff1a\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/a><\/li>\n
                2. \u6570\u636e\u96c6\u6210\u7b80\u4ecb<\/a><\/li>\n
                3. \u6570\u636e\u4ed3\u5e93\u548c\u5546\u4e1a\u667a\u80fd<\/a><\/li>\n
                4. \u6570\u636e\u7f51\u683c\u7684\u5174\u8d77\u53ca\u5176\u5f71\u54cd<\/a><\/li>\n<\/ol>\n

                  \u603b\u4e4b\uff0cELT \u5df2\u6210\u4e3a\u73b0\u4ee3\u6570\u636e\u96c6\u6210\u7684\u57fa\u672c\u6d41\u7a0b\uff0c\u4f7f\u7ec4\u7ec7\u80fd\u591f\u5229\u7528\u4e0d\u540c\u6570\u636e\u6e90\u7684\u6f5c\u529b\u5e76\u4e3a\u660e\u667a\u7684\u51b3\u7b56\u751f\u6210\u6709\u4ef7\u503c\u7684\u89c1\u89e3\u3002\u901a\u8fc7\u5229\u7528\u6570\u636e\u4ed3\u5e93\u548c\u5148\u8fdb\u6570\u636e\u8f6c\u6362\u6280\u672f\u7684\u529b\u91cf\uff0cELT \u5c06\u7ee7\u7eed\u5728\u5851\u9020\u6570\u636e\u9a71\u52a8\u578b\u4e1a\u52a1\u7684\u672a\u6765\u65b9\u9762\u53d1\u6325\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/p>","protected":false},"featured_media":468301,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-477062","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about ELT (Extract, Load, Transform) in Data Integration<\/mark>","faq_items":[{"question":"What is ELT (Extract, Load, Transform)?","answer":"

                  ELT stands for Extract, Load, Transform. It is a data integration process used in data warehousing and business intelligence. ELT involves extracting raw data from various sources, loading it into a data storage system, and then transforming it into a structured format for analysis and reporting.<\/p>"},{"question":"How does ELT differ from ETL?","answer":"

                  ELT differs from ETL (Extract, Transform, Load) in the sequence of data processing. In ETL, data is first extracted from sources, then transformed, and finally loaded into a data warehouse. In contrast, ELT loads raw data into the storage system and performs transformations within the target system itself.<\/p>"},{"question":"What are the key features of ELT?","answer":"

                  Some key features of ELT include scalability, real-time processing capabilities, cost-effectiveness, flexibility in data transformations, and simplified architecture.<\/p>"},{"question":"What are the types of ELT?","answer":"

                  ELT can be categorized into different types based on its implementation and scope. These types include:<\/p>

                  1. On-Premise ELT<\/li>
                  2. Cloud-based ELT<\/li>
                  3. Real-time ELT<\/li><\/ol>"},{"question":"How is ELT used in real-world scenarios?","answer":"

                    ELT finds applications in various scenarios, including business intelligence, data warehousing, data migration, and real-time analytics. It enables organizations to integrate data from diverse sources for comprehensive insights and decision-making.<\/p>"},{"question":"What are some common problems related to ELT, and how can they be solved?","answer":"

                    Common problems with ELT include data quality issues, handling data volume and latency, ensuring data security, and effective error handling. Solutions involve data validation, distributed processing frameworks, encryption, and comprehensive error-handling mechanisms.<\/p>"},{"question":"How is ELT associated with proxy servers?","answer":"

                    Proxy servers can enhance ELT processes by redirecting data requests, caching frequently requested data, adding security and privacy layers, and facilitating global data collection in a distributed ELT environment.<\/p>"},{"question":"What technologies and perspectives shape the future of ELT?","answer":"

                    The future of ELT involves augmented data integration with AI and machine learning, adoption of serverless architectures, and the influence of the Data Mesh concept for decentralized data ownership.<\/p>"},{"question":"Where can I find more information about ELT and related topics?","answer":"

                    For more information, you can explore the related links provided in the article, covering ELT vs. ETL comparison, data integration, data warehousing, and the rise of Data Mesh.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/477062","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/477062\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media\/468301"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media?parent=477062"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}