SPARQL1.1 関数リファレンス

SPARQL 1.1 Query Lanuage 17.4 Function Definitions の関数の定義を抜粋した備忘録

Functional Forms

bound

xsd:boolean  BOUND (variable var)

IF

rdfTerm  IF (expression1, expression2, expression3)

COALESCE

rdfTerm  COALESCE(expression, ....)

NOT_EXISTS_and_EXISTS

 xsd:boolean  NOT EXISTS { pattern }
 xsd:boolean  EXISTS { pattern }

logical-or

 xsd:boolean  xsd:boolean left || xsd:boolean right

logical-and

 xsd:boolean  xsd:boolean left && xsd:boolean right

RDFterm-equal

 xsd:boolean  RDF term term1 = RDF term term2

sameTerm

 xsd:boolean  sameTerm (RDF term term1, RDF term term2)

IN

boolean  rdfTerm IN (expression, ...)

NOT_IN

boolean  rdfTerm NOT IN (expression, ...)

Functions on RDF Terms

isIRI

 xsd:boolean  isIRI (RDF term term)
 xsd:boolean  isURI (RDF term term)

isBlank

 xsd:boolean  isBlank (RDF term term)

isLiteral

 xsd:boolean  isLiteral (RDF term term)

isNumeric

 xsd:boolean  isNumeric (RDF term term)

str

 simple literal  STR (literal ltrl)
 simple literal  STR (IRI rsrc)

lang

 simple literal  LANG (literal ltrl)

datatype

 iri  DATATYPE (literal literal)

IRI

 iri  IRI(simple literal)
 iri  IRI(xsd:string)
 iri  IRI(iri)
 iri  URI(simple literal)
 iri  URI(xsd:string)
 iri  URI(iri)

BNODE

blank node  BNODE()
blank node  BNODE(simple literal)
blank node  BNODE(xsd:string)

STRDT

literal  STRDT(simple literal lexicalForm, IRI datatypeIRI)

STRLANG

literal  STRLANG(simple literal lexicalForm, simple literal langTag)

UUID

iri  UUID()

STRUUID

simple literal  STRUUID()

Functions on Strings

STRLEN

xsd:integer  STRLEN(string literal str)

SUBSTR

string literal  SUBSTR(string literal source, xsd:integer startingLoc)
string literal  SUBSTR(string literal source, xsd:integer startingLoc, xsd:integer length)

UCASE

string literal  UCASE(string literal str)

LCASE

string literal  LCASE(string literal str)

STRSTARTS

xsd:boolean  STRSTARTS(string literal arg1, string literal arg2)

STRENDS

xsd:boolean  STRENDS(string literal arg1, string literal arg2)

CONTAINS

xsd:boolean  CONTAINS(string literal arg1, string literal arg2)

STRBEFORE

literal  STRBEFORE(string literal arg1, string literal arg2)

STRAFTER

literal  STRAFTER(string literal arg1, string literal arg2)

ENCODE_FOR_URI

simple literal  ENCODE_FOR_URI(string literal ltrl)

CONCAT

string literal  CONCAT(string literal ltrl1 ... string literal ltrln)

langMatches

 xsd:boolean  langMatches (simple literal language-tag, simple literal language-range)

REGEX

 xsd:boolean  REGEX (string literal text, simple literal pattern)
 xsd:boolean  REGEX (string literal text, simple literal pattern, simple literal flags)

REPLACE

 string literal  REPLACE (string literal arg, simple literal pattern, simple literal replacement )
 string literal  REPLACE (string literal arg, simple literal pattern, simple literal replacement,  simple literal flags)

Functions on Numerics

abs

 numeric  ABS (numeric term)

round

 numeric  ROUND (numeric term)

ceil

 numeric  CEIL (numeric term)

floor

 numeric  FLOOR (numeric term)

RAND

 xsd:double  RAND ( )

Functions on Dates and Times

now

 xsd:dateTime  NOW ()

year

 xsd:integer  YEAR (xsd:dateTime arg)

month

 xsd:integer  MONTH (xsd:dateTime arg)

day

 xsd:integer  DAY (xsd:dateTime arg)

hours

 xsd:integer  HOURS (xsd:dateTime arg)

minutes

 xsd:integer  MINUTES (xsd:dateTime arg)

seconds

 xsd:decimal  SECONDS (xsd:dateTime arg)

timezone

 xsd:dayTimeDuration  TIMEZONE (xsd:dateTime arg)

tz

 simple literal  TZ (xsd:dateTime arg)

Hash Functions

MD5

 simple literal  MD5 (simple literal arg)
 simple literal  MD5 (xsd:string arg)

SHA1

 simple literal  SHA1 (simple literal arg)
 simple literal  SHA1 (xsd:string arg)

SHA256

 simple literal  SHA256 (simple literal arg)
 simple literal  SHA256 (xsd:string arg)

SHA384

 simple literal  SHA384 (simple literal arg)
 simple literal  SHA384 (xsd:string arg)

SHA512

 simple literal  SHA512 (simple literal arg)
 simple literal  SHA512 (xsd:string arg)