XMLTYPE is an XMLType constructor.
Applicability
This topic applies only to OceanBase Database Enterprise Edition. OceanBase Database Community Edition provides only the MySQL mode.
Syntax
CONSTRUCTOR FUNCTION XMLType(
xmlData IN CLOB)
RETURN SELF AS RESULT;
CONSTRUCTOR FUNCTION XMLType(
xmlData IN VARCHAR2)
RETURN SELF AS RESULT;
Parameters
| Parameter | Description |
|---|---|
| xmlData | The input data, which is of the CLOB or VARCHAR2 type. If the input data is a piece of text in a valid XML document, XMLType data generated based on this text is returned. |
Examples
In the following example, the variable b is a piece of valid XML text, and a is an XMLType variable. a:=xmltype(b) in line 5 constructs an XMLType value by using b and assigns the value to the variable a.
obclient> DECLARE
a XMLType;
b VARCHAR2(200):='<?xml version="1.0" encoding="ISO-8859-1"?><note><heading>Reminder</heading></note>';
BEGIN
a:=XMLType(b);
END;
/
Query OK, 0 rows affected
If the input data is not a piece of text in a valid XML document, an error is reported when the constructor is executed.
obclient> DECLARE
a XMLType;
b VARCHAR2(200):='<?xml version="1.0" encoding="ISO-8859-1"?><note><heading>Reminder</heading></error>';
BEGIN
a:=XMLType(b);
END;
/
ORA-31011: XML parsing failed
at package body oceanbase.XMLTYPE.XMLTYPE , line : 1, col : 0
at anonymous block , line : 5, col : 0
