Hello, I'm trying to rewritte XQuery prepared for exist-db into baseX. I have a problem with storing data in the database. In exist-db xmldb:store() function returns a string and there is no problem to create let/return construct. Is it possible to create a similar solution in baseX? --- exist-db ----------------------------------------- xquery version "3.0"; declare function local:indexget() as item()* { let $index := doc('db/index.xml') return xs:integer($index/index/text()) }; declare function local:indexset($index as xs:integer) as xs:string? { let $newresource := xmldb:store('/db','index.xml', <index>{$index}</index>) return $newresource }; let $indexnew := local:indexget() + 1 let $newresource := local:indexset($indexnew) return local:indexget() ---------------------------------------------------- And these are baseX functions I wrote, but I don't know if is it possible to create solution similar to above? Can anyone help me solve this problem? ---- BaseX ---------------------------------------------- declare function local:indexget() as item()* { let $index := doc('/home/index.xml') return xs:integer($index/index/text()) }; declare %updating function local:indexset($index as xs:integer) { db:replace('index', 'index.xml', <index>{$index}</index>) }; (....) ------------------------------------------------------------ Regards Bartosz Marciniak