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Postnext
Raghav TulshibagwaleSubject: Use of if-then-else
Author: Raghav Tulshibagwale
Date: 18 Nov 2008 01:49 AM
Originally Posted: 18 Nov 2008 01:47 AM
Hello ...

I have the following query which is giving me an error. The problem comes when I put the "if-then-else" statements there!! Can any one of you put some light on it??

The query is as follows....
let $customer :=doc("cust.xml")/cust_information/cust
let $mall :=doc("mall.xml")/mall_information/mall



for $cust in $customer
let $x := count ((for $temp in $mall where $temp/mall_cust = $cust/cust_id and $temp/mall_addr = "Main street" return $temp) )

let $y := count ((for $temp in $mall where $temp/mall_cust = $cust/cust_id and $temp/mall_addr = "downtown" return $temp) )


if ($x < $x )
then return $cust/cust_id
else()


This query is intended to return all customers who go to mall on "main street" MORE THAN mall at "Downtown". This query gives errors!!

Posttop
Minollo I.Subject: Use of if-then-else
Author: Minollo I.
Date: 18 Nov 2008 08:40 AM
Try changing:
...
if ($x < $y )
then return $cust/cust_id
else()

into

...
return
if ($x < $y )
then $cust/cust_id
else()

   
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