\u5927\u6570\u636e\u65f6\u4ee3\uff0c\u4f20\u7edf\u7684\u4e1a\u52a1\u6a21\u5f0f\u5df2\u7ecf\u4e0d\u80fd\u9002\u5408\u65b0\u5f62\u52bf\u7684\u53d1\u5c55\u8981\u6c42\uff0c\u4e00\u6b21\u5927\u53d8\u9769\u5df2\u7ecf\u6084\u7136\u62c9\u5f00\u5e8f\u5e55\u3002<\/p>\n
\u5728\u65e5\u524d\u4e3e\u884c\u76842012 Teradata\u5929\u777f\u516c\u53f8\u5927\u6570\u636e\u5206\u6790\u65b9\u6848\u7814\u8ba8\u4f1a\u4e0a\uff0cTeradata\u9ad8\u7ea7\u89e3\u51b3\u65b9\u6848\u987e\u95ee\u674e\u5411\u524d\u5bf9\u8bb0\u8005\u8868\u793a\uff0c\u7531\u4e8eSQL\u548cMapReduceSQL\u5404\u81ea\u7684\u7f3a\u9677\u548c\u4f18\u52bf\uff0c\u4e8c\u8005\u90fd\u65e0\u6cd5\u72ec\u7acb\u627f\u62c5\u5927\u6570\u636e\u5206\u6790\u7684\u91cd\u4efb\uff0c\u7efc\u5408\u4e8c\u8005\u4e4b\u957f\u7684SQL—MapReduce\uff0c\u624d\u662f\u5927\u6570\u636e\u5206\u6790\u7684\u8d8b\u52bf\u3002<\/p>\n
Teradata\u8ba4\u4e3a\uff0c\u5f53\u524d\u975e\u7ed3\u6784\u5316\u7684\u6570\u636e\u589e\u957f\u66f4\u5feb\uff0c\u6bcf\u5929\u90fd\u4ea7\u751f\u5927\u91cf\u7684\u6570\u636e\uff0c\u5206\u6790\u7684\u4e30\u5bcc\u7a0b\u5ea6\u4e5f\u5728\u589e\u52a0\u3002\u56e0\u6b64\uff0c\u5927\u6570\u636e\u7684\u5206\u6790\uff0c\u9700\u8981\u4e00\u4e2a\u5feb\u901f\u7684\u3001\u7b80\u5355\u7684\u3001scale—up\u7684\u5206\u6790\u5e73\u53f0\u3002<\/p>\n
\u674e\u5411\u524d\u8868\u793a\uff0c\u9996\u5148\uff0c\u5728\u5927\u6570\u636e\u65f6\u4ee3\uff0c\u4f20\u7edf\u7684SQL\u5df2\u7ecf\u4e0d\u80fd\u6ee1\u8db3\u6240\u6709\u7684\u4e1a\u52a1\u9700\u6c42\uff0c\u4e00\u4e9b\u67e5\u8be2\u4e0d\u7075\u6d3b\u3001\u4e0d\u76f4\u89c2\u6216\u8005\u5f88\u96be\u51c6\u786e\u8868\u8ff0\uff0c\u4e14DB\u7cfb\u7edf\u4f1a\u9009\u62e9\u4e00\u4e2a\u8f83\u5dee\u7684\u6267\u884c\u8ba1\u5212\u6267\u884c\uff0c\u6548\u7387\u4f4e\u4e0b\u3002\u5176\u6b21\uff0c\u4f20\u7edf\u7684UDF\u5b58\u5728\u4e00\u5b9a\u7684\u7f3a\u9677\uff0c\u8fd0\u7b97\u51fd\u6570\u975e\u5e38\u6709\u9650\uff0c\u8868\u51fd\u6570\u65e0\u6cd5\u505a\u5230\u5e76\u884c\u5904\u7406\uff0c\u56fa\u5b9a\u7684schema\u9650\u5236\u4e86\u91cd\u590d\u4f7f\u7528\u3002\u7b2c\u4e09\uff0c\u5927\u6570\u636e\u5206\u6790\u7684\u9700\u6c42\u53ef\u80fd\u7528RDBMS\u65e0\u6cd5\u6ee1\u8db3\u3002<\/p>\n
\u6b63\u5f0f\u7531\u4e8e\u4e0a\u8ff0\u539f\u56e0\uff0c\u5728\u5927\u6570\u636e\u6210\u4e3a\u6700\u65b0\u6311\u6218\u7684\u4eca\u5929\uff0c\u59cb\u5efa\u4e8e2011\u5e74\u5728\u8c37\u6b4c\u6267\u884c\u4e00\u4e2a\u5927\u6570\u636e\u5904\u7406\u7684Map\/Reduce\u7cfb\u7edf\u9010\u6e10\u53d7\u5230\u5173\u6ce8\u3002Map \/Reduce\u662f\u4e00\u79cd\u5e76\u884c\u7f16\u7a0b\u6a21\u5f0f\uff0c\u5b9a\u4e49\u6709Map\/Reduce\u4e24\u4e2a\u51fd\u6570\uff0c\u5e76\u4e14\u72ec\u7acb\u4e8e\u4efb\u4f55\u7279\u5b9a\u7684\u5b9e\u73b0\u3002MapReduce\u53ef\u4ee5\u6269\u5c55\u652f\u6301\u5230\u975e\u5e38\u5927\u7684\u6570\u636e\u89c4\u6a21\uff0c\u514b\u670d\u4e86\u4f20\u7edf\u6570\u636e\u4ed3\u5e93\u6269\u5c55\u6027\u9650\u5236\u548c\u96be\u4ee5\u8868\u8fbe\u7b49\u95ee\u9898\uff0c\u5df2\u7ecf\u88ab\u5f88\u591a\u77e5\u540d\u7684\u6570\u636e\u89c4\u6a21\u6bd4\u8f83\u5927\u7684\u4e92\u8054\u7f51\u516c\u53f8\u4f7f\u7528;MapReduce\u8fd8\u63d0\u4f9b\u9ad8\u6548\u7684\u7f16\u7a0b\u6a21\u5f0f\uff0c\u7b80\u5355\u3001\u79fb\u52a8\uff0c\u5e76\u5b9e\u73b0\u6700\u5927\u7a0b\u5ea6\u7684\u5e76\u884c\u3002<\/p>\n
\u7136\u800c\uff0cTeradata\u8ba4\u4e3a\uff0cMapReduce\u6709\u4e00\u4e2a\u81f4\u547d\u7684\u5f31\u70b9\uff0c\u5373\u975e\u5e38\u4f9d\u8d56\u4e8e\u7f16\u7a0b\u5b9e\u73b0\u3002\u8fd9\u610f\u5473\u7740\uff0cMapReduce\u5f88\u96be\u91cd\u590d\u4f7f\u7528\uff0c\u968f\u7740\u65b0\u7684\u4e1a\u52a1\u95ee\u9898\u4e0d\u65ad\u7684\u51fa\u73b0\uff0c\u90fd\u9700\u8981\u91cd\u65b0\u7f16\u7801\uff0c\u8fd9\u65e0\u7591\u52a0\u5927\u4e86\u4f7f\u7528\u96be\u5ea6\u548c\u5de5\u4f5c\u91cf\uff0c\u4e5f\u95f4\u63a5\u589e\u52a0\u4e86\u4f01\u4e1a\u7684\u6295\u5165\u6210\u672c\u3002<\/p>\n
\u674e\u5411\u524d\u8868\u793a\uff0c\u5f25\u8865\u4ee3\u6c9f\u7684\u6700\u4f73\u9009\u62e9\u662fSQL—MapReduce\u3002<\/p>\n
SQL\/MapReduce(\u7b80\u79f0SQL\/MR)\u662fAster Data\u7684\u4e00\u4e2a\u6846\u67b6\uff0c\u652f\u6301\u5f53\u524d\u6d41\u884c\u7684Java\u548cC\u9884\u8a00\uff0c\u7528\u6237\u53ef\u4ee5\u5c06\u4ee3\u7801\u5b89\u88c5\u5728nCluster\u4e2d\uff0c\u53ef\u4ee5\u5728\u6570\u636e\u5e93\u4e2d\u7531SQL\u8c03\u7528\uff0c\u7cfb\u7edf\u5c06\u81ea\u52a8\u5e76\u884c\u6267\u884c\u3002<\/p>\n
\u674e\u5411\u524d\u4ecb\u7ecd\uff0cSQL\/MR\u4ee5“21\u4e16\u7eaa\u7684UDF(a UDF for21st century)”\u4e3a\u76ee\u6807\uff0c\u81f4\u529b\u4e8e\u63d0\u4f9b\u826f\u597d\u7684\u53ef\u6269\u5c55\u6027\uff0c\u53cb\u597d\u7684\u5206\u6790\u754c\u9762\u548c\u5f00\u53d1\u754c\u9762\u3002<\/p>\n
\u53ef\u6269\u5c55\u6027\uff1a\u975e\u5e38\u5bb9\u6613\u8ba9\u6570\u767e\u53f0\u670d\u52a1\u5668\u7684\u786c\u4ef6\u8d44\u6e90\u53d1\u6325\u4f5c\u7528;\u5bb9\u9519\u6027\u7531\u7cfb\u7edf\u81ea\u52a8\u5904\u7406\u3002<\/p>\n
\u5206\u6790\u754c\u9762\uff1a\u5206\u6790\u5e08\u53ef\u4ee5\u7528\u7c7b\u4f3cSQL\u8bed\u8a00\u7075\u6d3b\u8868\u8ff0;\u5f00\u53d1\u4eba\u5458\u5f00\u53d1\u88ab\u5206\u6790\u5e08\u5e7f\u6cdb\u4f7f\u7528\u7684\u5de5\u5177;\u67e5\u8be2\u7684\u8bed\u4e49\u65e0\u9700\u4e0e\u5177\u4f53\u7684\u5b9e\u73b0\u65b9\u5f0f\u6df7\u5408\u5728\u4e00\u8d77\u3002<\/p>\n
\u5f00\u53d1\u754c\u9762\uff1a\u7b80\u5355\u6613\u61c2\u7684\u7f16\u7a0b\u6a21\u5f0f;\u4fbf\u6377\u7684\u5f00\u53d1\u5e73\u53f0\u670d\u52a1\uff0c\u5f00\u53d1\u4eba\u5458\u5c3d\u53ef\u80fd\u81ea\u7531\u53d1\u6325\u3002<\/p>\n
Aster Data\u662fTeradata\u6536\u8d2d\u83b7\u5f97\u7684\u8d44\u4ea7\u3002\u4e3a\u5c06\u4e0d\u540c\u6e20\u9053\u7684\u6570\u636e\u653e\u5728\u4e00\u8d77\uff0c\u5e76\u4e14\u5145\u5206\u5229\u7528\u4f20\u7edfSQL\u7684\u4f5c\u7528\uff0cAster Data\u63d0\u4f9b\u4e86\u4e00\u4e2a\u652f\u6301\u884c\u5217\u6df7\u5408\u5b58\u50a8\u7684\u673a\u5236\uff0c\u5e76\u4e14\u7ed3\u6784\u5316\u6570\u636e\u4e0e\u975e\u7ed3\u6784\u5316\u6570\u636e\u53ef\u4ee5\u5206\u5f00\u5b58\u50a8\uff0c\u805a\u5408\u5206\u6790\uff0c\u5176\u5e95\u5c42\u6709\u4e00\u4e2a\u9ad8\u901f\u4e92\u8054\u7684\u8fde\u63a5\u5668\u3002<\/p>\n
\u7b80\u8a00\u4e4b\uff0c\u4ece\u5404\u79cd\u5404\u6837\u7c7b\u578b\u7684\u6570\u636e\u4e2d\uff0c\u5feb\u901f\u83b7\u5f97\u6709\u4ef7\u503c\u4fe1\u606f\u7684\u80fd\u529b\uff0c\u5c31\u662f\u5927\u6570\u636e\u6280\u672f\u3002\u660e\u767d\u8fd9\u4e00\u70b9\u81f3\u5173\u91cd\u8981\uff0c\u4e5f\u6b63\u662f\u8fd9\u4e00\u70b9\u4fc3\u4f7f\u8be5\u6280\u672f\u5177\u5907\u8d70\u5411\u4f17\u591a\u4f01\u4e1a\u7684\u6f5c\u529b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5927\u6570\u636e\u65f6\u4ee3\uff0c\u4f20\u7edf\u7684\u4e1a\u52a1\u6a21\u5f0f\u5df2\u7ecf\u4e0d\u80fd\u9002\u5408\u65b0\u5f62\u52bf\u7684\u53d1\u5c55\u8981\u6c42\uff0c\u4e00\u6b21\u5927\u53d8\u9769\u5df2\u7ecf\u6084\u7136\u62c9\u5f00\u5e8f\u5e55\u3002 \u5728\u65e5\u524d\u4e3e\u884c\u76842012 Teradata\u5929\u777f\u516c\u53f8\u5927\u6570\u636e\u5206\u6790\u65b9\u6848\u7814\u8ba8\u4f1a\u4e0a\uff0cTeradata\u9ad8\u7ea7\u89e3\u51b3\u65b9\u6848\u987e\u95ee\u674e\u5411\u524d\u5bf9\u8bb0\u8005\u8868\u793a\uff0c\u7531\u4e8eSQL\u548cMapReduceSQ…<\/p>\n","protected":false},"author":126,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[3441,3538,5678],"topic":[],"class_list":["post-9153","post","type-post","status-publish","format-standard","hentry","category-tips","tag-dashuju","tag-cunchuguanli","tag-ruanjian"],"_links":{"self":[{"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/posts\/9153"}],"collection":[{"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/users\/126"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/comments?post=9153"}],"version-history":[{"count":0,"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/posts\/9153\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/media?parent=9153"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/categories?post=9153"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/tags?post=9153"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/topic?post=9153"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}精品国产午夜肉伦伦影院,双性老师灌满浓jing上课h,天天做天天爱夜夜爽,攵女乱h边做边走