什么意思?什么时候用?

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楼主: 孤独翱翔的菜鸟
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constant函数 |
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回帖推荐Exact integer
CONSTANT('EXACTINT' )
Arguments
nbytes
is a numeric value that is the number of bytes.
Range 2 ≤ nbytes ≤ 8
Default 8
The exact integer is the largest integer k such that all integers less than or equal to k in absolute value have an exact representation in a SAS numeric variable of length nbytes. This information can be useful to know before you trim a SAS numeric ...
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