Random Module
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This XQuery Module contains nondeterministic functions for returning random values.
Conventions
All functions in this module are assigned to the http://basex.org/modules/random
namespace, which is statically bound to the random
prefix.
All errors are assigned to the http://basex.org/errors
namespace, which is statically bound to the bxerr
prefix.
Functions
random:double
Signatures  random:double() as xs:double() 
Summary  Returns a double value between 0.0 (inclusive) and 1.0 (exclusive). 
random:integer
Signatures  random:integer($max as xs:integer?) as xs:integer() 
Summary  Returns an integer value, either in the whole integer range or between 0 (inclusive) and the given maximum (exclusive) 
random:seededdouble
Signatures  random:seededdouble($seed as xs:integer, $num as xs:integer) as xs:items()* 
Summary  Returns a sequence with $num double values between 0.0 (inclusive) and 1.0 (exclusive). The random values are created using the initial seed given in $seed . 
random:seededinteger
Signatures  random:seededinteger($seed as xs:integer, $num as xs:integer, $max as xs:integer?) as xs:items()* 
Summary  Returns a sequence with $num integer values, either in the whole integer range or between 0 (inclusive) and the given maximum (exclusive). The random values are created using the initial seed given in $seed . 
random:gaussian
Signatures  random:gaussian($num as xs:integer) as xs:items()* 
Summary  Returns a sequence with $num double values. The random values are Gaussian (i.e. normally) distributed with the mean 0.0. and the derivation 1.0. 
random:uuid
Signatures  random:uuid() as xs:string

Summary  Creates a random universally unique identifier (UUID), represented as 128bit value. 
Examples 

Changelog
The module was introduced with Version X. It includes functionality which was previously located in the Math Module.