C:\Perl\bin>perl -d ysam5a.pl

Loading DB routines from perl5db.pl version 1.28
Editor support available.

Enter h or `h h' for help, or `perldoc perldebug' for more help.

main::(ysam5a.pl:7):    my $sUser;
  DB<1> x $sUser
0  undef
  DB<2> n
main::(ysam5a.pl:8):    my $sPassword;
  DB<2> x $sPassword
0  undef
  DB<3> n
main::(ysam5a.pl:10):   my $sQuery = 'Columbus Ohio sushi restaurant';
  DB<3> x my $sQuery
0  undef
  DB<4>