List of Built-in Datatypes

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∟List of Built-in Datatypes

This section lists all built-in datatypes supported in XSD 1.1. 50 built-in datatypes can be divided into 7 categories. 4 new datatypes are introduced in XSD 1.1.

Here is a complete list of 50 built-in datatypes defined in XSD 1.1 specification:

anyType: Special, As the base datatype of all XSD datatypes
  all complex types: Placeholder, For user defined complex datatypes
    anySimpleType: Special, As the base datatype
      anyAtomicType: Special, As the base datatype
        anyURI: Primitive, For URI values
        base64Binary: Primitive, For base64 encoded data
        boolean: Primitive, For Boolean values
        date: Primitive, For date values
        dateTime: Primitive, For date and time values
          dateTimeStamp: Derived, For timestamps
        decimal: Primitive, For decimal values
          integer: Derived, For integer values
            long: Derived, For 64-bit integer values
              int: Derived, For 32-bit integer values
                short: Derived, For 16-bit integer values
                  byte: Derived, For 8-bit integer values
            nonNegativeInteger: Derived, For non negative integers
              positiveInteger: Derived, For positive integers
              unsignedLong: Derived, For 64-bit unsigned integers
                unsignedInt: Derived, For 32-bit unsigned integers
                  unsignedShort: Derived, For 16-bit unsigned integers
                    unsignedByte: Derived, For 8-bit unsigned integers
            nonPositiveInteger: Derived, For non positive integers
              negativeInteger: Derived, For negative integers
        double: Primitive, For 64-bit floating-point values
        duration: Primitive, For time duration values
          dayTimeDuration: Derived, For time duration values
          yearMonthDuration: Derived, For calendar date durations
        float: Primitive, For 32-bit floating-point values
        gDay: Primitive, For Gregorian calendar day values
        gMonth: Primitive, For Gregorian calendar month values
        gMonthDay: Primitive, For Gregorian calendar month and day
        gYear: Primitive, For Gregorian calendar year values
        gYearMonth: Primitive, For Gregorian calendar year and month
        hexBinary: Primitive, For HEX encoded data
        NOTATION: primitive, For user defined notations
        QName: Primitive, For QName values
        string: Primitive, For string values
          normalizedString: Derived, For strings without \t, \r, \n
            token: Derived, For For strings with whitespaces collapsed
              language: Derived, For Langage values defined in BCP47
              Name: Derived, For XML Name values
                NCName: Derived, For XML non-colonized Name values
                  ENTITY: Derived, For XML ENTITY values
                  ID: Derived, For XML ID values
                  IDREF: Derived, For XML IDREF values
              NMTOKEN: Derived, For XML NMTOKEN values
        time: Primitive, For time values
      ENTITIES: List, For lists of ENTITY values
      IDREFS: List, For lists of IDREF values
      NMTOKENS: List, For lists of NMTOKEN values

As you can see from the above list, 50 XSD 1.1 built-in datatypes can be divided into 7 categories based on the value of their values:

Special value category - 3 datatypes: anyType, anySimpleType, anyAtomicType.
Numeric value category - 16 datatypes: float, double, decimal, integer, nonPositiveInteger, nonNegativeInteger, negativeInteger, positiveInteger, long, int, short, byte, unsignedLong, unsignedInt, unsignedShort, unsignedByte.
Date and time value category - 12 datatypes: dateTime, dateTimeStamp, date, time, gDay, gMonth, gYear, gYearMonth, gMonthDay, duration, dayTimeDuration, yearMonthDuration.
String value category - 12 datatypes: string, normalizedString, token, language, NMTOKEN, Name, NCName, ID, IDREF, ENTITY, QName, OTATION.
URI value category - 1 datatypes: anyURI.
Binary value category - 2 datatypes: hexBinary, base64Binary.
Boolean value category - 1 datatype: boolean.
List value category - 3 datatypes: ENTITIES, IDREFS, NMTOKENS.

Note that 4 new built-in datatypes are introduced in XSD 1.1:

anyAtomicType - A new datatype introduced to separate list datatypes from other built-in datatypes.
dateTimeStamp - A new datatype introduced to represents timestamps with timezone required.
dayTimeDuration - A new datatype introduced to represents durations with only day, hour, minutes, and/or seconds fields.
yearMonthDuration - A new datatype introduced to represents durations with no day, hour, minute, or seconds fields.