-debug flag provides which commands need to be debugged. For Example command line:

sqr myreport username/password -DEBUGabc

In this example, commands that are preceded by #DEBUG, #DEBUGa, #DEBUGb, or #DEBUGc are compiled when the program is run. Commands that are preceded with #DEBUGd are not compiled because d was not specified in the -DEBUG command-line flag.