Don Cram wrote: > > Is there some way I can erase / clear work datasets in SAS 6.09 or > 6.11 (in unix on SunOS 2.x or on Solaris) while the program is > running, once the dataset is no longer needed? I have an application > that requires more work space than I have available when I apply it to > a large input dataset. I could break the application into 2 programs, > but don't need to do that for small input datasets, and I would rather > just have one program. > > Is there some way I can erase/clear out macrovariables? In one > application I define 1,400 or so macrovariables. Defining more causes > a memory overflow error. > > I've checked Jaffe's _Mastering SAS System_ book and a few old SAS > version 5 and early version 6 manuals lying around, without success. > Any suggestions will be appreciated. > > thanks, > Don Cram > > -- > doncram@gsb-ecu.stanford.edu > http://www-leland.stanford.edu/~doncram

With the DATASETS procedure you can delete library members (work datasets are member of the WORK library). They are physically removed from your disk.

As for the macro variables. I wonder why you need 1400 macrovariables. Anyway, a suggestion might be to define macrovariables locally in a macro. Use the %local statement. But I'm not sure whether that will help.

Eric.