tuple_length — Return the number of elements of a tuple.
tuple_length returns the number of elements of the input tuple Tuple.
If the input tuple is empty, the operator returns 0.
HDevelop provides an in-line operation for tuple_length, which can be used in an expression in the following syntax:
Length := |Tuple|
Number of elements of input tuple.
tuple_min, tuple_max, tuple_mean, tuple_deviation, tuple_sum, tuple_median