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Mike LucasSubject: Format DB xQuery results
Author: Mike Lucas
Date: 17 Apr 2009 02:30 PM
I am trying to build an xQuery against three database tables, and return the results in a hierarchy format. My key field across each table is con_id, and the detail table has one or more records for each record in the master table. I can see in my syntax that the format is currently:
<Cons>
<master>
<detail></detail>
<ridr></ridr>
</master>
</Cons>

And I want to change it to:
<Cons>
<master></master>
<detail></detail>
<ridr></ridr>
</Cons>

Everything I've tried has returned syntax errors or told me that line 8 cannot find $m. My xQuery is below.

<Cons>
{
for $m in collection("DB.dbo.master")/master
return
<master>
{ $m/* }
{
for $d in collection("DB.dbo.detail")/detail[con_id = $m/con_id]
return
<detail>
{ $d/* }
</detail>
}
{
for $r in collection("DB.dbo.ridr")/ridr[con_id = $m/con_id]
return
<ridr>
{ $r/* }
</ridr>
}
</master>
}
</Cons>

Thanks,
Mike Lucas
Postnext
Minollo I.Subject: Format DB xQuery results
Author: Minollo I.
Date: 17 Apr 2009 05:33 PM
Something like this:
<Cons>
{
for $m in collection("DB.dbo.master")/master
return (
<master>
{ $m/* }
</master>,
for $d in collection("DB.dbo.detail")/detail[con_id = $m/con_id]
return
<detail>
{ $d/* }
</detail>,
for $r in collection("DB.dbo.ridr")/ridr[con_id = $m/con_id]
return
<ridr>
{ $r/* }
</ridr>
)
}
</Cons>
Posttop
Mike LucasSubject: Format DB xQuery results
Author: Mike Lucas
Date: 20 Apr 2009 09:04 AM
Thanks, that did the trick. I've seen parenthesis in other examples, but I've yet to find a good xquery syntax reference site.

Michael
   
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