insert update delete XQuery Update.pdfinsert into insert attribute replace value rename insert before insert after insert as first insert as last replace node replace element content

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insert update delete

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let $doc := onetworeturn element { node-name($doc) } {$doc/*/element { 'b' } { node() }

}

let $doc := onetworeturn element { node-name($doc) } {$doc/*/element { node-name() } { () }

}

declare function local:strip($n as node()) as element()? {if($n instance of element()) thenelement { node-name($n) } {

$n/(@*, node())/local:strip(.)}

else ()};local:strip(XC)

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insert

replace

replace value

delete

rename

copy modify return

update ...

copy $... := …source… modify ... return ...…source… update ...

modify update

copy $c := modify (

insert node element german { 'Friede' } into $c,insert node element arabian { 'سالم' } into $c

)return $c

update insert nodes (element german { 'Friede' }, element arabian { 'سالم' }

) into .

insert node …source… [direction] …target…

before, after, (as first | as last)? into

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copy $c := document { } modify (

insert node before $c/xml,

insert node after $c/xml,

insert node as first into $c/xml,

insert node as last into $c/xml,

insert node into $c/xml

) return $c

replace node …target… with …source…

replace value of node …target… with …string…

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copy $c =: modify (

replace node $c/शीर्षक with ,

replace value of node $c/טקסט with 'Привет!'

) return element תיעוד { $c }

insert replace

delete node …target…

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copy $c := document { नमसे्त }

modify delete node $c//text()

return $c//text()

rename node …target… as …name…

copy $c := modify rename node $c as '௵'return $c

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Xfor $x in //Xreturn insert node $x after $x

$xfor $x in //*return delete node $x

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insert into insert attribute replace value rename

insert before insert after insert as first insert as last

replace node replace element content

delete

✎

update (insert node text { 'text' } into .,delete node ./node())

update (insert node text { 'text' } into b,delete node ./node())

for $x in //x return replace value of node $x with '㋛'

for $x in //x return replace value of node $x/text() with '㋛'

for $x in //x return replace node $x/text() with '㋛'

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replace replace value

(replace value of node $x with 'x',replace value of node $x with 'y')

(replace node $x with 'y',replace value of node $x with 'x')

✎

✎

X update replace node text() with ''

update (insert node text { '1' } into .,insert node text { '1' } into .

)

↯ rename node $a as 'A', rename node $a as 'B'

↯ insert node attribute a { 123 } into

↯ insert node text { 'x' } into /b

↯ replace node with

%updating

declare %updating function local:replace($trg, $val) {if(string($trg) eq $val) then () elsereplace value of node $trg with $val

};

for $item in //item

return local:replace($item, 'sold')

() error()

empty-sequence()

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if($doit) then delete node $sigh else 'Lucky day!'

try { insert node $a into $b } catch * { 'pity' }

delete node $a, delete node $b, db:output('success')

let $item := return ($item, delete node $item, $item)

☞ $item

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db:output($result as item()*)

MIXUPDATES

if(...) then data:get() else data:put()

%simple, %updating("allowed")

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db:add($db, $input, $path)

db:rename($db, $path, $newpath)

db:replace($db, $path, $input)

db:delete($db, $path)

db:create($db, $path)

db:drop($db)

db:optimize($db)

http://my.app.org/update ⇨http://my.app.org/update-ok ⇨ ✓ ↯

(1 to 99) ! db:create('db' || .)

(1 to 99) ! db:drop('db' || .)