I realize I'm late to the party, but I had the same questions. There's no way that A is the correct answer! If we just 'keep=product units price' in the set statement, how do we subsequently limit to just cases where 'ordrtime<4'. I picked C as well ... View more

@paulsonalec  Use authentication domains http://support.sas.com/documentation/cdl/en/mcsecug/69854/HTML/default/viewer.htm#aboutum.htm#p18zm6n7c8eketn1ggs2opidsuzk    Or as another option found here: https://go.documentation.sas.com/?docsetId=acreldb&docsetTarget=n020g4ewg9ioe6n1rr3ihchwny4v.htm&docsetVersion=9.4&locale=en One way to protect connection information is by storing user name, password, and other connection options in a local environment variable. Access to the DBMS is denied unless the correct user and password information is stored in a local environment variable. See the documentation for your DBMS to determine whether this alternative is supported.   ... View more