15.154 SEM_APIS.UNESCAPE_RDF_TERM
Format
SEM_APIS.UNESCAPE_RDF_TERM( term IN VARCHAR2 CHARACTER SET ANY_CS, options IN VARCHAR2 DEFAULT NULL, max_vc_len IN NUMBER DEFAULT 4000 ) RETURN VARCHAR2 CHARACTER SET val%CHARSET;
Description
Returns the input RDF term with special characters and non-ASCII characters unescaped as specified by the W3C N-Triples format (http://www.w3.org/TR/rdf-testcases/#ntriples
).
Parameters
Usage Notes
For information about using the DO_UNESCAPE
keyword in the options
parameter of the SEM_MATCH table function, see Using the SEM_MATCH Table Function to Query Semantic Data.
Examples
The following example unescapes an input RDF term containing TAB and NEWLINE characters.
SELECT SEM_APIS.UNESCAPE_RDF_TERM('"abc\tdef\nhij"^^<http://www.w3.org/2001/XMLSchema#string>') FROM DUAL;
Parent topic: SEM_APIS Package Subprograms