what do you mean with "system option"? That is a SAS option and a SAS
warning. Do you mean that?

I can't see no WARNING for that, but only a NOTE

If you don't want compression, just set:

options compress=no;

However it might make sense to set that thing global to yes, because the
win of IO time and space might be big, especially for big tables with many
repeats, e.g. with long character fields. It costs some CPU time, but IO
also needs (more) time. SAS is clever enough to sitch it off, if the
tables are too small.

If you have some datasets which require no compression, just set it off
before you create them and set it to compress=yes after that. With that
you avoid the notes. But why do you want to do that?
It is much work with low win.

If you try compression with SASHELP.CLASS, a dataset with 19 obs and 5 or
6 variables, you see that the size is increased by 100%. Ok, that is not
optimal. If you are dealing with such small datasets you might switch
compression off. But if you have big datasets, let it on.

Gerhard




On Fri, 8 Jan 2010 05:55:22 -0800, Steve Steve <steve11145@YAHOO.COM>
wrote:

>I think that there is a system compression option on our Unix system and
sometime I get the following warning message. I would like to remove the
warning. How can I do it, please?
�
�
WARNING: Compression was disabled for data set WORK.XXX because
compression overhead would increase the size of the data set.