hi,
i just have checked a couple of implementations regarding the behaviour of
negative length for SUBSTR sparql function. what i tried to achieve is to
get
the last two characters of a string, but this doesn't really work anywhere.
a use case : number padding
example :
SELECT ?padded WHERE {
?s ?p ?num FILTER(isNumeric(?num) && ?num<10000000) .
BIND(SUBSTR(CONCAT("0000000", ?num),STRLEN(?num),-7) AS ?padded)
}
any thoughts?
wkr jürgen
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