Name
DB.DBA.RDF_DATATYPE_OF_OBJ — Returns the datatype of a given argument.
Synopsis
DB.DBA.RDF_DATATYPE_OF_OBJ
(
|
in arg any , |
in
type_val
any
); |
Description
Returns the datatype of a given argument.
Parameters
arg
The argument which datatype should be returned.
type_val
The value to be returned for untyped literal arguments. When omitted, its default value http://www.w3.org/2001/XMLSchema#string is used.
Return Types
any
Examples
Example 24.269. Usage Examples
# Explicit typecast (insert)
SQL> sparql insert into <test_datatype> { <a> <string> "string 1"^^xsd:string . };
callret-0
VARCHAR
_______________________________________________________________________________
Insert into <test_datatype>, 1 (or less) triples -- done
1 Rows. -- 94 msec.
#Not explicit typecast (insert)
SQL> sparql insert into <test_datatype> { <a> <string> "string 2". };
callret-0
VARCHAR
_______________________________________________________________________________
Insert into <test_datatype>, 1 (or less) triples -- done
1 Rows. -- 16 msec.
SQL> SPARQL
SELECT ?o (iri(sql:RDF_DATATYPE_OF_OBJ(?o, 'untyped!')))
FROM <test_datatype> { <a> <string> ?o} ;
o callret-1
VARCHAR VARCHAR
_______________________________________________________________________________
string 1 http://www.w3.org/2001/XMLSchema#string
string 2 untyped!
2 Rows. -- 16 msec.
SQL>