[xquery-talk] divide by zero

[David Carlisle]

> but i got errors

you have the syntax for let wrong: it needs to be used with return.

 if (count($paths[.=$papa]) = 0)
  then 
  let $rat:=1  <--- this is an incomplete expression
  else 
  let $rat:=count($paths[.=$papa]) <-- and so is this

just do as originally suggested and replace

  zzzz div grrrr

by

zzzz div max((1,grrr))


so in your case

<RATIO>
 
{ 
 round( count($paths[.=$p]) div max((1,count($paths[.=$papa]))) * 100 )
} 
</RATIO> 

David

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