soporaeternus 发表于 2014-11-21 15:52
商业应用的话用比较好的存储,除了特殊场景,SAS对数据的处理没有极限
百亿条的流水或是数千变量的宽表都没 ...
请参考官方的说法
[text]
The information below applies to SAS 9.2 ONLY
Understanding the Maximum Number of Observations
A SAS data set stores the number of observations it has as an integer in the C programming language signed long-data type. This means that the maximum number of observations that can be counted for a SAS data set is limited by the long integer size for the operating environment.
In operating environments with a 32-bit long integer, the maximum number is 2**31-1 or approximately two billion observations.
In operating environments with a 64-bit long integer, the number is 2**63-1 or approximately 9.2 quintillion observations.
[/text]
对于9.2来说,32位最大是20亿条,64位的就没边了