This section lists all built-in datatypes supported in XML Schema.
XML Schema built-in (pre-defined) datatypes are divided into 7 groups:
Numeric datatypes
Date and time datatypes
String datatypes
Binary datatypes
Boolean datatype
Numeric datatypes: All commonly used integer and real number datatypes:
float
double
decimal
integer
nonPositiveInteger
nonNegativeInteger
negativeInteger
positiveinteger
long
int
short
byte
unsignedLong
unsignedInt
unsignedShort
unsignedByte
Date and time datatypes: Date and time related data types. Constants of date and time
types are written in the format defined by ISO 8601. For example:
"2002-12-23T14:19:00.000-05:00" represents an instance of time at 14:19:00.000 on
December 23, 2003, with 5:00 time zone adjustment.
dateTime - Date and time, like "2002-12-23T14:19:00.000-05:00".
date - Date only, like "2002-12-23".
time - Time only, like "14:19:00.000-05:00".
gDay - Day only, like "--23" (the 23rd day of any month of any year).
gMonth - Month only, like "-12" (December of any year).
gYear - Year only, like "2002".
gYearMonth - Year and month only, like "2002-12".
gMonthDay - Month and day only, like "-12-23".
duration - Period of time, like "P0001Y02M03DT04H05M06.000S".
String datatypes: String related data types.
string - A sequence of any Unicode characters
normalizedString - A string with no tabs, carriage returns, or line feeds
token - A normalized string with no any leading and trailing spaces,
and no multiple consecutive spaces.
language - A string that matches this pattern "[a-zA-Z]{1,8}(-[a-zA-Z0-9]{1,8})*".
Obviously, "language" datatype is designed to define variables used in many programming languages.
NMTOKEN - A string that matches the NMTOKEN attribute type from XML 1.0.
NMTOKENS - A list of NMTOKEN.
Name - A string that matches the Name production of XML 1.0.
NCName - A string that matches the "non-colonized" Name production of XML 1.0.
ID - A string that matches the ID attribute type from XML 1.0.
IDREF - A string that matches the IDREF attribute type from XML 1.0.
IDREFS - A list of IDREF.
ENTITY - A string that matches the ENTITY attribute type from XML 1.0.
ENTITIES - A list of ENTITY.
anyURI - A string represents a Uniform Resource Identifier Reference (URI).
QName - A string represents XML qualified names, an optional namespace name and a local name.
NOTATION - A string that matches the NOTATION attribute type from XML 1.0.
Binary datatypes:
hexBinary - A sequence of hex digits to represent any binary data.
base64Binary - Binary data written in Base64 encoding
Boolean data type:
boolean - With 4 possible values: 0, 1, true, false.
