Tamino XQuery User Guide - Software AG Documentation

Performing Update Operations
update for $a in input()/bib/book
let $title := $a/title
where $title = "TCP/IP Illustrated"
do (
replace $title/text() with string-join(($title/text(), "I. The ↩
Protocols"), " ")
insert
TCP/IP Illustrated II. The Implementation
StevensW.
WrightG.
Addison-Wesley
67.99
following $a
insert
TCP/IP Illustrated III.
StevensW.
Addison-Wesley
49.95
following $a
)
The update nodes consist of book elements that have a child element title with the content "TCP/IP
Illustrated". Then three update operations are performed:
1. replace
For all books found, the contents of the title element is replaced with the previous contents
concatenated with the string "I. The Protocols" using a blank as separator.
2. Two insert Operations
For all books found, the two specified XML fragments are inserted as sibling elements following the
book element.
In this query two insert following operations act on the same update node. The result is ambiguous
regarding the order of the inserted elements (not commutative). Volume 2 would be inserted as next
sibling to volume 1, and then volume 3 could either be inserted as next sibling to volume 1 (thus shifting
volume 2 to the next position), or it could be inserted after the just inserted volume 2.
As a solution, you can define a sequence to be inserted:
update for $a in input()/bib/book
let $title := $a/title
let $i := (
TCP/IP Illustrated II. The Implementation
StevensW.
Addison-Wesley
67.99
,
46
XQuery User Guide