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  1. or download this
    C:\test>254403
    'V_PAID_USERS'
    'V_OVERDUE'
    'UNPAID_USERS'
    'receipts'
    
  2. or download this
    #! perl -slw
    use strict;
    ...
    +.balance > 0;
    
      create view receipts as select * from unpaid_users;