CODEWITHSUNDEEP
xmlxquerybasexexist-db
Kami
Kami

Reputation: 1109

where to declare xquery functions?

Let's take the most simple function I can think of written in xquery:

declare function local:identityFunction($v as xs:integer) 
{
  return ($v)
};

Where do I declare it?

I am trying both exist-db and basex, but if I write it in the query processor window, they give me some errors (though normal xqueries work).

For example basex complains with the following message: "Expecting expression".

Upvotes: 4

Views: 2958

Answers (1)

BeniBela
BeniBela

Reputation: 16917

You can insert them before the normal expression.

Your mistake is to use 'return', which is neither needed nor allowed there, since a xquery function always returns the last (and only) value.

And the semicolon should be followed with another expression.

Therefore this will work:

declare function local:identityFunction($v as xs:integer) 
{
  $v
};     
local:identityFunction(17)

Upvotes: 5

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