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This function returns an integer expression that represents the length of the overlap of interval
variable a and the interval variable b whenever the interval variables
a and b are present. When the interval variable a or b
is absent, the function returns the constant integer value absVal (zero by default).
For more information on expressions on interval variables, see the concept Expressions over Interval Variables.
This function returns an integer expression that represents the length of the
overlap of interval variable a and the constant interval [start, end)
whenever the interval variable a is present. When the interval variable a
is absent, the function returns the constant integer value absVal (zero by default).
For more information on expressions on interval variables, see the concept Expressions over Interval Variables.