run sql query via perl script

Hello,

If I run this command on the server it works.
# dbc "update config set radio_enabled = 0;"

how can I execute the same command in perl. I have defined the dbc path. Can any one please correct the last line.

 
#!/usr/bin/perl
 
#database path
$dbc='/opt/bin/psql -Userver server -c '

`$dbc "update config set radio_enabled = 0;"`;