{"id":974,"date":"2020-09-05T11:39:22","date_gmt":"2020-09-05T03:39:22","guid":{"rendered":"http:\/\/www.gbase8.cn\/?p=974"},"modified":"2020-09-08T07:13:32","modified_gmt":"2020-09-07T23:13:32","slug":"gbase-8a%e6%95%b0%e6%8d%ae%e5%ba%93%e6%94%af%e6%8c%81%e5%93%aa%e4%ba%9b%e6%95%b0%e5%ad%97%e7%b1%bb%e5%9e%8b%ef%bc%8c%e6%9c%80%e9%ab%98%e7%b2%be%e5%ba%a6%e6%98%af%e5%a4%9a%e5%b0%91%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/974","title":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a\u6570\u636e\u5e93\u652f\u6301\u54ea\u4e9b\u6570\u5b57\u7c7b\u578b\uff0c\u6700\u9ad8\u7cbe\u5ea6\u662f\u591a\u5c11\uff1f"},"content":{"rendered":"\n<p>GBase 8a MPP Cluster\u652f\u6301\u6570\u636e\u7c7b\u578b\u5305\u62ec\u4e25\u683c\u7684\u6570\u503c\u6570\u636e\u7c7b\u578b\uff08TINYINT\uff0cSMALLINT\uff0cINT\uff0cBIGINT\uff0cDECIMAL\uff09\uff0c\u4ee5\u53ca\u8fd1\u4f3c\u7684\u6570\u503c\u6570\u636e\u7c7b\u578b\uff08FLOAT\uff0cDOUBLE\uff09\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u66f4\u6709\u6548\u5730\u4f7f\u7528\u5b58\u50a8\u7a7a\u95f4\uff0c\u8bf7\u7528\u6237\u5c3d\u91cf\u4f7f\u7528\u6700\u7cbe\u786e\u7684\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4e00\u4e2a\u6574\u6570\u5217\u88ab\u7528\u4e8e\u57281\uff5e127\u4e4b\u95f4\u7684\u503c\uff0cTINYINT\u662f\u6700\u597d\u7684\u7c7b\u578b\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u5b58\u50a8\u66f4\u5927\u8303\u56f4\u7684\u6570\u503c,\u7528\u6237\u53ef\u4ee5\u9009\u62e9BIGINT\u6216DECIMAL\u7c7b\u578b\u3002<\/p>\n\n\n\n<p>\u4f5c\u4e3aSQL92\u6807\u51c6\u7684\u6269\u5c55\uff0cGBase 8a MPP Cluster\u4e5f\u652f\u6301\u6574\u6570\u7c7b\u578bTINYINT\uff0cSMALLINT\u548cBIGINT\u3002<\/p>\n\n\n\n<p>GBase 8a MPP Cluster\u652f\u6301\u7684\u6570\u503c\u7c7b\u578b\uff0c\u5982\u4e0b\u8868\u6240\u793a\uff1a<\/p>\n\n\n\n<p><strong>\u8868<\/strong><strong>5<\/strong><strong>\u2011<\/strong><strong>5<\/strong><strong>\u4fdd\u7559\u5b57<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><td>\u7c7b\u578b\u540d\u79f0<\/td><td>\u6700\u5c0f\u503c<\/td><td>\u6700\u5927\u503c<\/td><td>\u5360\u7528\u5b57\u8282\u6570<\/td><\/tr><\/thead><tbody><tr><td>TINYINT<\/td><td>-127<\/td><td>127<\/td><td>1<\/td><\/tr><tr><td>SMALLINT<\/td><td>-32767<\/td><td>32767<\/td><td>2<\/td><\/tr><tr><td>INT(INTEGER)<\/td><td>-2147483647<\/td><td>2147483647<\/td><td>4<\/td><\/tr><tr><td>BIGINT<\/td><td>-9223372036854775806<\/td><td>9223372036854775806<\/td><td>8<\/td><\/tr><tr><td>FLOAT<\/td><td>-3.40E+38<\/td><td>3.40E+38<\/td><td>4<\/td><\/tr><tr><td>DOUBLE<\/td><td>-1.7976931348623157E+308<\/td><td>1.7976931348623157E+308<\/td><td>8<\/td><\/tr><tr><td>DECIMAL[(M[, D])]<\/td><td>-(1E+M -1)\/(1E+D)<\/td><td>(1E+M -1)\/(1E+D)<\/td><td>\u52a8\u6001\u8ba1\u7b97<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u6ce8\u610f\uff1a<\/h3>\n\n\n\n<p>\u5404\u4e2a\u6570\u5b57\u7684\u6700\u5c0f\u503c\u548c\u6700\u5927\u503c\uff0c\u4e0e\u4f20\u7edf\u7684\u5176\u5b83\u6570\u636e\u5e93\u5e76\u4e0d\u4e00\u6837\uff0c\u4e5f\u548c\u666e\u901a\u7684\u6570\u5b57\u6781\u9650\u503c\u4e5f\u4e0d\u540c\uff0c\u6700\u5c0f\u503c\u90fd\u589e\u52a0\u4e861\u3002 \u4e5f\u5c31\u662f\u5728GBase\u91cc\uff0c \u6700\u5c0f\u503c\u548c\u6700\u5927\u503c\uff0c\u9664\u53bb\u7b26\u53f7\u4e0d\u540c\u5916\uff0c\u5176\u5b83\u662f\u76f8\u540c\u7684\u3002<\/p>\n\n\n\n<p>\u90e8\u5206\u652f\u6301\u7684\u5b9e\u9645\u957f\u5ea6\uff0c\u6839\u636e\u5b57\u7b26\u96c6\u4e0d\u540c\uff0c\u8bf7\u53c2\u8003<\/p>\n\n\n\n<p><a href=\"http:\/\/www.gbase8.cn\/?p=830\">gbase8a 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