Oracle® Database SQL Reference 10g Release 2 (10.2) Part Number B14200-01 |
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Syntax
Purpose
SYS_XMLAgg
aggregates all of the XML documents or fragments represented by expr
and produces a single XML document. It adds a new enclosing element with a default name ROWSET
. If you want to format the XML document differently, then specify fmt
, which is an instance of the XMLFormat
object.
See Also:
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Examples
The following example uses the SYS_XMLGen
function to generate an XML document for each row of the sample table employees
where the employee's last name begins with the letter R, and then aggregates all of the rows into a single XML document in the default enclosing element ROWSET
:
SELECT SYS_XMLAGG(SYS_XMLGEN(last_name)) FROM employees WHERE last_name LIKE 'R%'; SYS_XMLAGG(SYS_XMLGEN(LAST_NAME)) -------------------------------------------------------------------- <ROWSET> <LAST_NAME>Raphaely</LAST_NAME> <LAST_NAME>Rogers</LAST_NAME> <LAST_NAME>Rajs</LAST_NAME> <LAST_NAME>Russell</LAST_NAME> </ROWSET>