TerminusDB Data Types

Core data types

Type
W3C specification
Description
xsd:string
W3C
Character strings (but not all Unicode character strings)
xsd:boolean
W3C
true, false
xsd:decimal
W3C
Equivalent to xsd:double
xsd:integer
W3C
Arbitrary-size integer numbers

IEEE floating-point numbers

Type
W3C specification
Description
xsd:double
W3C
64-bit floating point numbers incl. ∓Inf, ∓0, NaN
xsd:float
W3C
32-bit floating point numbers incl. ∓Inf, ∓0, NaN

Time and date

Type
W3C specification
Description
xsd:date
W3C
Dates (yyyy-mm-dd) with or without timezone
xsd:time
W3C
Times (hh:mm:ss.sss) with or without timezone
xsd:dateTime
W3C
Date and time with or without timezone
xsd:dateTimeStamp
-
Date and time with required timezone

Recurring and partial dates

Type
W3C specification
Description
xsd:gYear
W3C
Gregorian calendar year
xsd:gMonth
W3C
Gregorian calendar month
xsd:gDay
W3C
Gregorian calendar day of the month
xsd:gYearMonth
W3C
Gregorian calendar year and month
xsd:gMonthDay
W3C
Gregorian calendar month and day
xsd:duration
W3C
Duration of time
xsd:yearMonthDuration
-
Duration of time (months and years only)
xsd:dayTimeDuration
-
Duration of time (days, hours, minutes, seconds only)

Limited-range integer numbers

Type
W3C specification
Description
xsd:byte
W3C
-128...+127 (8 bit)
xsd:short
W3C
-32768...+32767 (16 bit)
xsd:int
W3C
-2147483648...+2147483647 (32 bit)
xsd:long
W3C
-9223372036854775808...+9223372036854775807 (64 bit)
xsd:unsignedByte
W3C
0...255 (8 bit)
xsd:unsignedShort
W3C
0...65535 (16 bit)
xsd:unsignedInt
W3C
0...4294967295 (32 bit)
xsd:unsignedLong
W3C
0...18446744073709551615 (64 bit)
xsd:positiveInteger
W3C
Integer numbers >0
xsd:nonNegativeInteger
W3C
Integer numbers ≥0
xsd:negativeInteger
W3C
Integer numbers <0
xsd:nonPositiveInteger
W3C
Integer numbers ≤0

Encoded binary data

Type
W3C specification
Description
xsd:hexBinary
W3C
Hex-encoded binary data
xsd:base64Binary
W3C
Base64-encoded binary data

Miscellaneous XSD types

Type
W3C specification
Description
xsd:anyURI
W3C
Absolute or relative URIs and IRIs
xsd:language
W3C
Language tags per BCP47
xsd:normalizedString
W3C
Whitespace-normalized strings
xsd:token
W3C
Tokenized strings
xsd:NMTOKEN
W3C
XML NMTOKENs
xsd:Name
W3C
XML Names
xsd:NCName
W3C
XML NCNames
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On this page
Core data types
IEEE floating-point numbers
Time and date
Recurring and partial dates
Limited-range integer numbers
Encoded binary data
Miscellaneous XSD types