Oracle XMLQuery
Version 23ai

General Information
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Oracle Database 26ai will be available on generic Linux platforms in January and soon on AIX and Windows
Returns query results as XML. XMLTable returns results as relation data.
 
Demo Setup
Table DDL CREATE TABLE person_data (
person_id   NUMBER(3),
person_data XMLTYPE);
Demo Data INSERT INTO person_data
(person_id, person_data)
VALUES
(1, XMLTYPE('<PDRecord>
     <PDName>Daniel Morgan</PDName>
     <PDDOB>12/1/1951</PDDOB>
     <PDEmail>damorgan@uw.edu</PDEmail>
 </PDRecord>')
);

INSERT INTO person_data
(person_id, person_data)
VALUES
(2, XMLTYPE('<PDRecord>
     <PDName>Taner Poder</PDName>
     <PDDOB>5/17/1949</PDDOB>
     <PDEmail>damorgan@uw.edu</PDEmail>
   </PDRecord>')
);

INSERT INTO person_data
(person_id, person_data)
VALUES
(3, XMLTYPE('<PDRecord>
     <PDName>Caleb Small</PDName>
     <PDDOB>1/1/1960</PDDOB>
     <PDEmail>damorgan@uw.edu</PDEmail>
 </PDRecord>')
);

COMMIT;

col person_data format a50

SELECT * FROM person_data;

set long 100000

SELECT * FROM person_data;
 
SELECT
Simple Query (with equals) SELECT <column_list>, XMLQuery (
'for $i IN <record_end_tag>
 WHERE $i<item_end_tag> = <value>
 ORDER BY $i<item_end_tag>
 RETURN $i<item_end_tag>
PASSING BY VALUE <xml_record_column>
RETURNING CONTENTS) <returning_column_alias>
FROM <table_name>;


Note: What is within the parentheses is case sensitive and you can not use Upper Case or InitCap for commands.
SELECT person_id, XMLQuery('FOR $i IN /PDRecord
 WHERE $i /PDName = "Daniel Morgan"
 ORDER BY $i/PDName
 RETURN $i/PDName'
PASSING BY VALUE person_data
RETURNING CONTENT) XMLData
FROM person_data;

SELECT person_id, XMLQuery (
'FOR $i IN /PDRecord
 WHERE $i /PDName eq "Daniel Morgan"
 ORDER BY $i/PDName
 RETURN $i/PDName'
PASSING BY VALUE person_data
RETURNING CONTENT) XMLData
FROM person_data;
Greater Than SELECT person_id, XMLQuery (
'FOR $i IN /PDRecord
 WHERE $i /PDName > "Daniel Morgan"
 ORDER BY $i/PDName
 RETURN $i/PDName'
PASSING BY VALUE person_data
RETURNING CONTENT) XMLData
FROM person_data;

SELECT person_id, XMLQuery (
'FOR $i IN /PDRecord
 WHERE $i /PDName gt "Daniel Morgan"
 ORDER BY $i/PDName
 RETURN $i/PDName'
PASSING BY VALUE person_data
RETURNING CONTENT) XMLData
FROM person_data;
Greater Than Or Equal To SELECT person_id, XMLQuery (
'FOR $i IN /PDRecord
 WHERE $i /PDName >= "Daniel Morgan"
 ORDER BY $i/PDName
 RETURN $i/PDName'
PASSING BY VALUE person_data
RETURNING CONTENT) XMLData
FROM person_data;

SELECT person_id, XMLQuery (
'FOR $i IN /PDRecord
 WHERE $i /PDName ge "Daniel Morgan"
 ORDER BY $i/PDName
 RETURN $i/PDName'
PASSING BY VALUE person_data
RETURNING CONTENT) XMLData
FROM person_data;
Less Than SELECT person_id, XMLQuery (
'FOR $i IN /PDRecord
 WHERE $i /PDName < "Daniel Morgan"
 ORDER BY $i/PDName
 RETURN $i/PDName'
PASSING BY VALUE person_data
RETURNING CONTENT) XMLData
FROM person_data;

SELECT person_id, XMLQuery (
'FOR $i IN /PDRecord
 WHERE $i /PDName lt "Daniel Morgan"
 ORDER BY $i/PDName
 RETURN $i/PDName'
PASSING BY VALUE person_data
RETURNING CONTENT) XMLData
FROM person_data;
Less Than Or Equal To SELECT person_id, XMLQuery (
'FOR $i IN /PDRecord
 WHERE $i /PDName >= "Daniel Morgan"
 ORDER BY $i/PDName
 RETURN $i/PDName'
PASSING BY VALUE person_data
RETURNING CONTENT) XMLData
FROM person_data;

SELECT person_id, XMLQuery (
'FOR $i IN /PDRecord
 WHERE $i /PDName le "Daniel Morgan"
 ORDER BY $i/PDName
 RETURN $i/PDName'
PASSING BY VALUE person_data
RETURNING CONTENT) XMLData
FROM person_data;
Not Equals SELECT person_id, XMLQuery (
'FOR $i IN /PDRecord
 WHERE $i /PDName != "Daniel Morgan"
 ORDER BY $i/PDName
 RETURN $i/PDName'
PASSING BY VALUE person_data
RETURNING CONTENT) XMLData
FROM person_data;

SELECT person_id, XMLQuery (
'FOR $i IN /PDRecord
 WHERE $i /PDName ne "Daniel Morgan"
 ORDER BY $i/PDName
 RETURN $i/PDName'
PASSING BY VALUE person_data
RETURNING CONTENT) XMLData
FROM person_data;
Additional Syntax Elements
[ // div union <CastAs>
- >> * intersect <CastableAs>
+ and idiv <EOF>
| or mod <InstanceOf>
except is to <TreatAs>

Related Topics
DBMS_XMLGEN
XML Functions
XMLTable
XML Tables
What's New In 21c
What's New In 26ai

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