KennyL 发表于 2013-4-26 10:34 
刚才选用了几个数据集测试了下，问题得到了解决。就是不知道这个选项的含义？是否会影响COPY的速度？
CLONE|NOCLONE specifies whether to copy the following data set attributes:
- size of input/output buffers
- whether the data set is compressed
- whether free space is reused
- data representation of input data set, library, or operating environment
- encoding value
- whether a compressed data set can be randomly accessed by an observation number
These attributes are specified with data set options, SAS system options, and LIBNAME statement options:
- BUFSIZE= value for the size of the input/output buffers
- COMPRESS= value for whether the data set is compressed
- REUSE= value for whether free space is reused
- OUTREP= value for data representation
- ENCODING= or INENCODING= for encoding value
- POINTOBS= value for whether a compressed data set can be randomly accessed by an observation number
For the BUFSIZE= attribute, the following table summarizes how the COPY statement works:
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