declare option db:checkstrings 'false';
(: write file :)
file:write-binary('00.bin', xs:hexBinary('00')),
(: read file :)let $br := br:new(fr:new('00.bin'))return ( br:readLine($br), br:close($br))</syntaxhighlight> The option can also be specified via a pragma: <syntaxhighlight lang="xquery">(# db:checkstrings #) { br:new(fr:new('00.bin')) ! (br:readLine(.), br:close(.))}
</syntaxhighlight>