ORA-19025 With Extractvalue Of Binary XML From NVL / Coalesce Functions (Doc ID 1396005.1)

Last updated on FEBRUARY 08, 2017

Applies to:

Oracle Server - Enterprise Edition - Version: 11.2.0.3 and later   [Release: 11.2 and later ]
Information in this document applies to any platform.

Symptoms

When NVL or COALESCE is used with a binary XML column as first parameter, EXTRACTVALUE gives ORA-19025. Using a CLOB XML column gives correct result.

Example

NVL

SELECT extractvalue(nvl(xml_binary, xml_clob), '/A/text()')FROM t_xml;
FROM t_xml
*
ERROR at line 2:
ORA-19025: EXTRACTVALUE returns value of only one node

COALESCE

SELECT extractvalue(coalesce(xml_binary, xml_clob), '/A/text()')
FROM t_xml;
FROM t_xml
*
ERROR at line 2:
ORA-19025: EXTRACTVALUE returns value of only one node

Cause

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