To override the predetermined legacy SAS
data type, use the DBSASTYPE= option in order to specify the data
type to which to convert. Note that some data types are not supported.
For example, in the following code, DBSASTYPE= specifies a data type to use for the
column MYCOLUMN:
proc print data=mylib.mytable (dbsastype=(mycolumn=char(20)'));
run;