Purpose
XMLELEMENT() generates an XML element with the specified name, attributes, and content.
Syntax
XMLELEMENT( [ ENTITYESCAPING | NOENTITYESCAPING ]
{ ( [ NAME ] identifier ) | ( EVALNAME value_expr ) }
[ , XML_attributes_clause ]
[ , value_expr [ [ AS ] c_alias ]]...
)
Parameters
| Parameter | Description |
|---|---|
| ENTITYESCAPING | NOENTITYESCAPING | Optional. Specifies whether to force escape the name and content of the element. We recommend that you use the default value ENTITYESCAPING. |
| NAME | Optional. The keyword that specifies the root element name to a literal identifier. The value after NAME is the literal identifier. |
| EVALNAME | The keyword that specifies the root element name to an expression that evaluates to a literal identifier. The expression after EVALNAME is the expression to evaluate. |
| identifier | The literal identifier that names the root element. |
| value_expr | The element value expression. This parameter can be another element or text. If it is another element, it can be an XMLType column or an expression that generates XMLType data, such as XMLELEMENT or XMLAGG. |
| XML_attributes_clause | Optional. The expression that specifies element attributes. For more information, see XMLATTRIBUTES. |
| c_alias | The alias of element content, which is a string literal. |
Return type
The return type is XMLType.
Examples
The following example constructs an XML element named Emp with the content being value.
obclient> SELECT XMLELEMENT(NAME "Emp", 'value') FROM DUAL;
+-------------------------------+
| XMLELEMENT(NAME"EMP",'VALUE') |
+-------------------------------+
| <Emp>value</Emp>
|
+-------------------------------+
1 row in set
